test: added activity repo test

Reviewed-on: #6
Co-authored-by: Jarno Kiesiläinen <jarnokie@gmail.com>
Co-committed-by: Jarno Kiesiläinen <jarnokie@gmail.com>

.clinerules/frontend-color-theme.md

@@ -0,0 +1,32 @@
+## Brief overview
+Project-specific frontend color theme guidelines for the vibing application. Defines a cohesive peach/coral/pink color palette with specific CSS custom properties, component styling patterns, and accessibility requirements.
+
+## Color palette usage
+- Always use the defined peach-coral color scheme: Primary Peach (#FFCDB2), Secondary Coral (#FFB4A2), Light Pink (#E5989B), Medium Mauve (#B5838D), Dark Purple (#6D6875)
+- Implement CSS custom properties in src/index.css for all color definitions
+- Use semantic color naming: --color-primary, --color-secondary, --color-bg-dark, --color-text-primary, etc.
+- Support both dark and light modes using @media (prefers-color-scheme: light)
+
+## Component styling patterns
+- Buttons: Use gradient backgrounds, implement translateY(-2px) hover animations, apply consistent focus states with peach outline
+- Cards: White backgrounds with subtle shadows, translateY(-8px) hover animations, 16px border radius, scale(1.05) image hover effects
+- Links: Primary color #FFCDB2, hover colors #E5989B (dark mode) or #B5838D (light mode), no text decoration by default
+- Use semantic CSS class names: .btn-primary, .btn-secondary, .btn-outline, .btn-ghost
+
+## Interactive states and animations
+- Apply subtle lift animations using transform: translateY(-2px) for hover effects
+- Use rgba(255, 205, 178, 0.3) for focus rings and primary shadows
+- Use rgba(229, 152, 155, 0.3) for secondary shadows
+- Ensure hover states are distinct from focus states for accessibility
+
+## File organization structure
+- Place global styles and CSS custom properties in src/index.css
+- Create individual .css files in src/components/ for component-specific styles
+- Use src/App.css for utility classes
+- Consider src/styles/ directory for additional theme files when needed
+
+## Accessibility requirements
+- Maintain minimum contrast ratios: 4.5:1 for normal text, 3:1 for large text
+- Use --color-focus for focus indicators
+- Test with color blindness simulators
+- Ensure all interactive elements have proper focus states

.clinerules/git-workflow.md

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+## Brief overview
+Project-specific git workflow guidelines emphasizing feature branch development, conventional commit messages, and proper branch management practices. Never work directly on main/master branches.
+
+## Branch management strategy
+- Always create feature branches for all development work
+- Use kebab-case naming: feature/user-authentication, bugfix/login-validation, hotfix/security-patch, refactor/api-endpoints
+- Keep feature branches short-lived (1-3 days ideally)
+- One feature per branch, don't mix different types of changes
+- Delete branches after successful merge
+
+## Commit message conventions
+- Use conventional commit format: type(scope): description
+- Use present tense ("add feature" not "added feature")
+- Be specific and descriptive in commit messages
+- Reference issue numbers when applicable: feat(auth): add OAuth login #123
+- Make frequent, small commits with clear purposes
+
+## Development workflow steps
+- Always start by ensuring main branch is up to date: git checkout main && git pull origin main
+- Create new feature branch: git checkout -b feature/your-feature-name
+- Before pushing, rebase with main: git fetch origin && git rebase origin/main
+- Push feature branch: git push origin feature/your-feature-name
+- Create Pull Request from feature branch to main
+- Only merge after code review approval
+
+## Code review requirements
+- Create PR for all changes, no direct commits to main
+- Request reviews from team members
+- Address all feedback before merging
+- Ensure all tests pass before creating PR
+- Self-review changes before requesting reviews
+- Update documentation when needed
+
+## Emergency procedures
+- For critical issues, create hotfix branches from main
+- Make minimal necessary changes in hotfixes
+- Test thoroughly before creating emergency PR
+- Follow same review process even for hotfixes

.gitea/README.md

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+# Gitea Actions for Vibing Project
+
+This directory contains Gitea Actions workflows for the Vibing project (both frontend and backend).
+
+## Workflows
+
+### Backend CI (`backend-ci.yml`)
+
+Runs Maven tests on the backend project.
+
+**Triggers:**
+- Push to `main` or `develop` branches
+- Pull requests to `main` or `develop` branches
+- Only when changes are made to files in the `backend/` directory
+
+**What it does:**
+1. Checks out the code
+2. Sets up Java 21 (Temurin distribution)
+3. Caches Maven dependencies for faster builds
+4. Runs `mvn test` in the backend directory
+5. Uploads test results as artifacts (retained for 7 days)
+
+**Requirements:**
+- Java 21
+- Maven
+- Ubuntu runner
+
+### Frontend CI (`frontend-ci.yml`)
+
+Runs linting and builds the frontend project.
+
+**Triggers:**
+- Push to `main` or `develop` branches
+- Pull requests to `main` or `develop` branches
+- Only when changes are made to files in the `frontend/` directory
+
+**What it does:**
+1. Checks out the code
+2. Sets up Node.js 18
+3. Caches npm dependencies for faster builds
+4. Installs dependencies with `npm ci`
+5. Runs ESLint for code quality checks
+6. Builds the project with `npm run build`
+7. Uploads build artifacts (retained for 7 days)
+
+**Requirements:**
+- Node.js 18
+- npm
+- Ubuntu runner

.gitea/workflows/backend-ci.yml

@@ -0,0 +1,44 @@
+name: Backend CI
+
+on:
+  push:
+    branches: [ main, develop ]
+    paths:
+      - 'backend/**'
+  pull_request:
+    branches: [ main, develop ]
+    paths:
+      - 'backend/**'
+
+jobs:
+  test:
+    name: Run Maven Tests
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+        cache: 'maven'
+
+    - name: Set up Maven
+      uses: stCarolas/setup-maven@v5
+      with:
+        maven-version: '3.6.3'
+        
+    - name: Run Maven tests
+      working-directory: ./backend
+      run: mvn test
+      
+    - name: Upload test results
+      uses: actions/upload-artifact@v3
+      if: always()
+      with:
+        name: backend-test-results
+        path: backend/target/surefire-reports/
+        retention-days: 7 

README.md

@@ -0,0 +1,32 @@
+# Vibing application
+
+## Data model
+
+```mermaid
+classDiagram
+    class Activity {
+        +Long id
+        +String name
+        +Location location
+        +Integer priceRange
+        +List~String~ tags
+        +String description
+        +LocalDateTime createdAt
+        +LocalDateTime updatedAt
+    }
+    
+    class Location {
+        +Long id
+        +String name
+        +String address
+        +String city
+        +String country
+        +String postalCode
+        +Double latitude
+        +Double longitude
+        +LocalDateTime createdAt
+        +LocalDateTime updatedAt
+    }
+    
+    Activity <-- Location : belongs to
+```

backend/.gitignore

@@ -0,0 +1,99 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+# Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+
+# IDE files
+.idea/
+*.iws
+*.iml
+*.ipr
+.vscode/
+.settings/
+.project
+.classpath
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Application specific
+application-local.yml
+application-prod.yml
+*.db
+*.sqlite
+
+# Logs
+logs/
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+
+# nyc test coverage
+.nyc_output
+
+# Dependency directories
+node_modules/
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local 

backend/README.md

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+# Vibing Backend
+
+A REST API backend service built with Spring Boot, Java 21, and Maven for the Vibing application.
+
+## Features
+
+- **RESTful API**: Complete CRUD operations for user management
+- **Spring Boot 3.2.0**: Latest Spring Boot version with Java 21 support
+- **JPA/Hibernate**: Database persistence with H2 in-memory database
+- **Spring Security**: Basic security configuration (extensible for production)
+- **API Documentation**: Swagger/OpenAPI 3 documentation
+- **Validation**: Input validation using Bean Validation
+- **Testing**: JUnit 5 test framework
+
+## Prerequisites
+
+- Java 21 or higher
+- Maven 3.6 or higher
+- IDE (IntelliJ IDEA, Eclipse, VS Code, etc.)
+
+## Getting Started
+
+### 1. Clone the Repository
+
+```bash
+git clone <repository-url>
+cd vibing/backend
+```
+
+### 2. Build the Project
+
+```bash
+mvn clean install
+```
+
+### 3. Run the Application
+
+```bash
+mvn spring-boot:run
+```
+
+The application will start on `http://localhost:8080`
+
+## API Endpoints
+
+### Base URL
+- **API Base**: `http://localhost:8080/api`
+- **Health Check**: `http://localhost:8080/api/health`
+- **Swagger UI**: `http://localhost:8080/swagger-ui.html`
+- **H2 Console**: `http://localhost:8080/h2-console`
+
+### User Management Endpoints
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/users` | Get all users |
+| GET | `/api/users/{id}` | Get user by ID |
+| GET | `/api/users/username/{username}` | Get user by username |
+| POST | `/api/users` | Create new user |
+| PUT | `/api/users/{id}` | Update user |
+| DELETE | `/api/users/{id}` | Delete user |
+| GET | `/api/users/check-username/{username}` | Check username availability |
+| GET | `/api/users/check-email/{email}` | Check email availability |
+
+### Health Check Endpoints
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/health` | Application health status |
+| GET | `/api/health/ping` | Simple ping endpoint |
+
+## Database
+
+The application uses H2 in-memory database for development:
+
+- **URL**: `jdbc:h2:mem:testdb`
+- **Username**: `sa`
+- **Password**: `password`
+- **Console**: `http://localhost:8080/h2-console`
+
+## Project Structure
+
+```
+src/
+├── main/
+│   ├── java/com/vibing/backend/
+│   │   ├── VibingBackendApplication.java    # Main application class
+│   │   ├── controller/                      # REST controllers
+│   │   │   ├── UserController.java
+│   │   │   └── HealthController.java
+│   │   ├── service/                         # Business logic
+│   │   │   └── UserService.java
+│   │   ├── repository/                      # Data access layer
+│   │   │   └── UserRepository.java
+│   │   ├── model/                           # Entity classes
+│   │   │   └── User.java
+│   │   ├── config/                          # Configuration classes
+│   │   │   └── SecurityConfig.java
+│   │   └── exception/                       # Custom exceptions
+│   └── resources/
+│       └── application.yml                  # Application configuration
+└── test/
+    └── java/com/vibing/backend/
+        └── VibingBackendApplicationTests.java
+```
+
+## Configuration
+
+The application configuration is in `src/main/resources/application.yml`:
+
+- **Server Port**: 8080
+- **Context Path**: `/api`
+- **Database**: H2 in-memory
+- **JPA**: Hibernate with create-drop DDL
+- **Security**: Basic configuration (allows all user endpoints)
+
+## Development
+
+### Running Tests
+
+```bash
+mvn test
+```
+
+### Building JAR
+
+```bash
+mvn clean package
+```
+
+The JAR file will be created in the `target/` directory.
+
+### Running JAR
+
+```bash
+java -jar target/vibing-backend-1.0.0.jar
+```
+
+## API Documentation
+
+Once the application is running, you can access:
+
+- **Swagger UI**: `http://localhost:8080/swagger-ui.html`
+- **OpenAPI JSON**: `http://localhost:8080/api-docs`
+
+## Example API Usage
+
+### Create a User
+
+```bash
+curl -X POST http://localhost:8080/api/users \
+  -H "Content-Type: application/json" \
+  -d '{
+    "username": "john_doe",
+    "email": "john@example.com",
+    "password": "password123",
+    "firstName": "John",
+    "lastName": "Doe"
+  }'
+```
+
+### Get All Users
+
+```bash
+curl http://localhost:8080/api/users
+```
+
+### Get User by ID
+
+```bash
+curl http://localhost:8080/api/users/1
+```
+
+## Security
+
+The current security configuration allows all requests to user endpoints for development purposes. For production:
+
+1. Implement proper authentication (JWT, OAuth2, etc.)
+2. Add role-based authorization
+3. Configure CORS properly
+4. Use HTTPS
+5. Implement rate limiting
+
+## Contributing
+
+1. Create a feature branch
+2. Make your changes
+3. Add tests
+4. Submit a pull request
+
+## License
+
+This project is licensed under the MIT License. 

backend/pom.xml

@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
+         http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.2.0</version>
+        <relativePath/>
+    </parent>
+
+    <groupId>com.vibing</groupId>
+    <artifactId>vibing-backend</artifactId>
+    <version>1.0.0</version>
+    <name>Vibing Backend</name>
+    <description>REST API backend service for Vibing application</description>
+
+    <properties>
+        <java.version>21</java.version>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <!-- Spring Boot Starters -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+
+        <!-- Database -->
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- Development Tools -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+
+        <!-- Test Dependencies -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>net.datafaker</groupId>
+            <artifactId>datafaker</artifactId>
+            <version>2.4.4</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-core</artifactId>
+            <version>3.0</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- JSON Processing -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
+        <!-- Lombok -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.38</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- API Documentation -->
+        <dependency>
+            <groupId>org.springdoc</groupId>
+            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+            <version>2.2.0</version>
+        </dependency>
+
+        <!-- Flyway -->
+        <dependency>
+            <groupId>org.flywaydb</groupId>
+            <artifactId>flyway-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.flywaydb</groupId>
+            <artifactId>flyway-database-postgresql</artifactId>
+            <version>11.10.5</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+            
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <source>21</source>
+                    <target>21</target>
+                </configuration>
+            </plugin>
+            
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.1.2</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>

backend/run.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Vibing Backend Run Script
+echo "Starting Vibing Backend..."
+
+# Check if Java 21 is available
+if ! command -v java &> /dev/null; then
+    echo "Error: Java is not installed or not in PATH"
+    exit 1
+fi
+
+# Check Java version
+JAVA_VERSION=$(java -version 2>&1 | head -n 1 | cut -d'"' -f2 | cut -d'.' -f1)
+if [ "$JAVA_VERSION" != "21" ]; then
+    echo "Warning: Java 21 is recommended. Current version: $JAVA_VERSION"
+fi
+
+# Check if Maven is available
+if ! command -v mvn &> /dev/null; then
+    echo "Error: Maven is not installed or not in PATH"
+    exit 1
+fi
+
+echo "Building and running the application..."
+echo "The application will be available at:"
+echo "  - API Base: http://localhost:8080/api"
+echo "  - Health Check: http://localhost:8080/api/health"
+echo "  - Swagger UI: http://localhost:8080/swagger-ui.html"
+echo "  - H2 Console: http://localhost:8080/h2-console"
+echo ""
+echo "Press Ctrl+C to stop the application"
+echo ""
+
+# Run the application
+mvn spring-boot:run 

backend/src/main/java/com/vibing/backend/VibingBackendApplication.java

@@ -0,0 +1,16 @@
+package com.vibing.backend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Main Spring Boot application class for the Vibing backend service.
+ * This class serves as the entry point for the REST API backend.
+ */
+@SpringBootApplication
+public class VibingBackendApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(VibingBackendApplication.class, args);
+    }
+} 

backend/src/main/java/com/vibing/backend/config/SecurityConfig.java

@@ -0,0 +1,35 @@
+package com.vibing.backend.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.web.SecurityFilterChain;
+
+/**
+ * Security configuration for the Vibing backend application.
+ * This is a basic configuration that can be extended for production use.
+ */
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig {
+
+    /**
+     * Configure security filter chain.
+     * For development purposes, this allows all requests.
+     * In production, you should implement proper authentication and authorization.
+     *
+     * @param http the HttpSecurity object
+     * @return SecurityFilterChain
+     * @throws Exception if configuration fails
+     */
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+        http
+            .csrf(AbstractHttpConfigurer::disable) // Disable CSRF for REST APIa
+            .authorizeHttpRequests(authz -> authz.anyRequest().permitAll());
+
+        return http.build();
+    }
+} 

backend/src/main/java/com/vibing/backend/controller/ActivityController.java

@@ -0,0 +1,117 @@
+package com.vibing.backend.controller;
+
+import com.vibing.backend.model.Activity;
+import com.vibing.backend.service.ActivityService;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.AllArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * REST controller for Activity-related operations.
+ */
+@RestController
+@RequestMapping("/activities")
+@Tag(name = "Activity Management", description = "APIs for managing activities")
+@CrossOrigin(origins = "*") // Configure this properly for production
+@AllArgsConstructor
+public class ActivityController {
+
+    private final ActivityService activityService;
+
+    /**
+     * Get all activities.
+     *
+     * @return ResponseEntity containing list of all activities
+     */
+    @GetMapping
+    @Operation(summary = "Get all activities", description = "Retrieve a list of all activities")
+    public ResponseEntity<List<Activity>> getAllActivities() {
+        List<Activity> activities = activityService.findAll();
+        return ResponseEntity.ok(activities);
+    }
+
+    /**
+     * Get an activity by ID.
+     *
+     * @param id the activity ID
+     * @return ResponseEntity containing the activity if found
+     */
+    @GetMapping("/{id}")
+    @Operation(summary = "Get activity by ID", description = "Retrieve a specific activity by its ID")
+    public ResponseEntity<Activity> getActivityById(@PathVariable Long id) {
+        Optional<Activity> activity = activityService.findById(id);
+        return activity.map(ResponseEntity::ok)
+                .orElse(ResponseEntity.notFound().build());
+    }
+
+    /**
+     * Get activities by name (case-insensitive search).
+     *
+     * @param name the activity name to search for
+     * @return ResponseEntity containing list of matching activities
+     */
+    @GetMapping("/search/name")
+    @Operation(summary = "Search activities by name", description = "Search for activities by name (case-insensitive)")
+    public ResponseEntity<List<Activity>> getActivitiesByName(@RequestParam String name) {
+        List<Activity> activities = activityService.findByNameContainingIgnoreCase(name);
+        return ResponseEntity.ok(activities);
+    }
+
+    /**
+     * Get activities by price range.
+     *
+     * @param priceRange the price range to filter by
+     * @return ResponseEntity containing list of activities with the specified price range
+     */
+    @GetMapping("/search/price-range")
+    @Operation(summary = "Get activities by price range", description = "Retrieve activities with a specific price range")
+    public ResponseEntity<List<Activity>> getActivitiesByPriceRange(@RequestParam Integer priceRange) {
+        List<Activity> activities = activityService.findByPriceRange(priceRange);
+        return ResponseEntity.ok(activities);
+    }
+
+    /**
+     * Get activities by location.
+     *
+     * @param locationId the location ID to filter by
+     * @return ResponseEntity containing list of activities at the specified location
+     */
+    @GetMapping("/search/location")
+    @Operation(summary = "Get activities by location", description = "Retrieve activities at a specific location")
+    public ResponseEntity<List<Activity>> getActivitiesByLocation(@RequestParam Long locationId) {
+        List<Activity> activities = activityService.findByLocationId(locationId);
+        return ResponseEntity.ok(activities);
+    }
+
+    /**
+     * Get activities by tag.
+     *
+     * @param tag the tag to search for
+     * @return ResponseEntity containing list of activities with the specified tag
+     */
+    @GetMapping("/search/tag")
+    @Operation(summary = "Get activities by tag", description = "Retrieve activities that have a specific tag")
+    public ResponseEntity<List<Activity>> getActivitiesByTag(@RequestParam String tag) {
+        List<Activity> activities = activityService.findByTagsContaining(tag);
+        return ResponseEntity.ok(activities);
+    }
+
+    /**
+     * Get activities by maximum price range.
+     *
+     * @param maxPriceRange the maximum price range
+     * @return ResponseEntity containing list of activities with price range <= maxPriceRange
+     */
+    @GetMapping("/search/max-price")
+    @Operation(summary = "Get activities by maximum price range", description = "Retrieve activities with price range less than or equal to the specified value")
+    public ResponseEntity<List<Activity>> getActivitiesByMaxPriceRange(@RequestParam Integer maxPriceRange) {
+        List<Activity> activities = activityService.findByPriceRangeLessThanEqual(maxPriceRange);
+        return ResponseEntity.ok(activities);
+    }
+} 

backend/src/main/java/com/vibing/backend/controller/HealthController.java

@@ -0,0 +1,49 @@
+package com.vibing.backend.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Health check controller for monitoring the application status.
+ */
+@RestController
+@RequestMapping("/health")
+@Tag(name = "Health Check", description = "APIs for checking application health")
+public class HealthController {
+
+    /**
+     * Get the health status of the application.
+     *
+     * @return ResponseEntity containing health information
+     */
+    @GetMapping
+    @Operation(summary = "Health check", description = "Check if the application is running")
+    public ResponseEntity<Map<String, Object>> healthCheck() {
+        Map<String, Object> healthInfo = new HashMap<>();
+        healthInfo.put("status", "UP");
+        healthInfo.put("timestamp", LocalDateTime.now());
+        healthInfo.put("service", "Vibing Backend");
+        healthInfo.put("version", "1.0.0");
+        
+        return ResponseEntity.ok(healthInfo);
+    }
+
+    /**
+     * Get a simple ping response.
+     *
+     * @return ResponseEntity with "pong" message
+     */
+    @GetMapping("/ping")
+    @Operation(summary = "Ping", description = "Simple ping endpoint")
+    public ResponseEntity<String> ping() {
+        return ResponseEntity.ok("pong");
+    }
+} 

backend/src/main/java/com/vibing/backend/model/Activity.java

@@ -0,0 +1,67 @@
+package com.vibing.backend.model;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.Max;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.AllArgsConstructor;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * Activity entity representing an activity in the Vibing application.
+ */
+@Entity
+@Table(name = "activities")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Activity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotBlank(message = "Activity name is required")
+    @Column(nullable = false)
+    private String name;
+
+    @NotNull(message = "Location is required")
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "location_id", nullable = false)
+    private Location location;
+
+    @NotNull(message = "Price range is required")
+    @Min(value = 1, message = "Price range must be at least 1")
+    @Max(value = 5, message = "Price range must be at most 5")
+    @Column(name = "price_range", nullable = false)
+    private Integer priceRange;
+
+    @ElementCollection(fetch = FetchType.LAZY)
+    @CollectionTable(name = "activity_tags", joinColumns = @JoinColumn(name = "activity_id"))
+    @Column(name = "tag")
+    private List<String> tags;
+
+    @Column(name = "description")
+    private String description;
+
+    @Column(name = "created_at")
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    protected void onUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+} 

backend/src/main/java/com/vibing/backend/model/Location.java

@@ -0,0 +1,64 @@
+package com.vibing.backend.model;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotBlank;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.With;
+import lombok.AllArgsConstructor;
+import java.time.LocalDateTime;
+
+/**
+ * Location entity representing a location in the Vibing application.
+ */
+@Entity
+@Table(name = "locations")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@With
+public class Location {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotBlank(message = "Location name is required")
+    @Column(nullable = false)
+    private String name;
+
+    @Column
+    private String address;
+
+    @Column
+    private String city;
+
+    @Column
+    private String country;
+
+    @Column(name = "postal_code")
+    private String postalCode;
+
+    @Column(name = "latitude")
+    private Double latitude;
+
+    @Column(name = "longitude")
+    private Double longitude;
+
+    @Column(name = "created_at")
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @PrePersist
+    protected void onCreate() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    protected void onUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+} 

backend/src/main/java/com/vibing/backend/repository/ActivityRepository.java

@@ -0,0 +1,54 @@
+package com.vibing.backend.repository;
+
+import com.vibing.backend.model.Activity;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+/**
+ * Repository interface for Activity entity operations.
+ */
+@Repository
+public interface ActivityRepository extends JpaRepository<Activity, Long> {
+
+    /**
+     * Find activities by name (case-insensitive).
+     *
+     * @param name the activity name to search for
+     * @return List of activities matching the name
+     */
+    List<Activity> findByNameContainingIgnoreCase(String name);
+
+    /**
+     * Find activities by price range.
+     *
+     * @param priceRange the price range to search for
+     * @return List of activities with the specified price range
+     */
+    List<Activity> findByPriceRange(Integer priceRange);
+
+    /**
+     * Find activities by location.
+     *
+     * @param locationId the location ID to search for
+     * @return List of activities at the specified location
+     */
+    List<Activity> findByLocationId(Long locationId);
+
+    /**
+     * Find activities by tag.
+     *
+     * @param tag the tag to search for
+     * @return List of activities with the specified tag
+     */
+    List<Activity> findByTagsContaining(String tag);
+
+    /**
+     * Find activities by price range less than or equal to.
+     *
+     * @param maxPriceRange the maximum price range
+     * @return List of activities with price range <= maxPriceRange
+     */
+    List<Activity> findByPriceRangeLessThanEqual(Integer maxPriceRange);
+} 

backend/src/main/java/com/vibing/backend/service/ActivityService.java

@@ -0,0 +1,49 @@
+package com.vibing.backend.service;
+
+import java.util.List;
+import java.util.Optional;
+
+import org.springframework.stereotype.Service;
+
+import com.vibing.backend.model.Activity;
+import com.vibing.backend.repository.ActivityRepository;
+
+import lombok.AllArgsConstructor;
+
+/**
+ * Service class for managing activities.
+ */
+@Service
+@AllArgsConstructor
+public class ActivityService {
+
+    private final ActivityRepository activityRepository;
+
+    public List<Activity> findAll() {
+        return activityRepository.findAll();
+    }
+
+    public Optional<Activity> findById(Long id) {
+        return activityRepository.findById(id);
+    }
+
+    public List<Activity> findByNameContainingIgnoreCase(String name) {
+        return activityRepository.findByNameContainingIgnoreCase(name);
+    }
+
+    public List<Activity> findByPriceRange(Integer priceRange) {
+        return activityRepository.findByPriceRange(priceRange);
+    }
+
+    public List<Activity> findByTagsContaining(String tag) {
+        return activityRepository.findByTagsContaining(tag);
+    }
+
+    public List<Activity> findByLocationId(Long locationId) {
+        return activityRepository.findByLocationId(locationId);
+    }
+
+    public List<Activity> findByPriceRangeLessThanEqual(Integer maxPriceRange) {
+        return activityRepository.findByPriceRangeLessThanEqual(maxPriceRange);
+    }
+}

backend/src/main/resources/application.yml

@@ -0,0 +1,56 @@
+server:
+  port: 8080
+  servlet:
+    context-path: /api
+
+spring:
+  application:
+    name: vibing-backend
+  
+  # Database Configuration
+  datasource:
+    url: jdbc:postgresql://localhost:5432/vibing
+    username: vibing
+    password: vibing
+    driver-class-name: org.postgresql.Driver
+  
+  # JPA Configuration
+  jpa:
+    database-platform: org.hibernate.dialect.PostgreSQLDialect
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+    properties:
+      hibernate:
+        format_sql: true
+  
+  # Jackson Configuration
+  jackson:
+    default-property-inclusion: non_null
+    serialization:
+      write-dates-as-timestamps: false
+    deserialization:
+      fail-on-unknown-properties: false
+
+# Logging Configuration
+logging:
+  level:
+    com.vibing.backend: DEBUG
+    org.springframework.security: DEBUG
+    org.springframework.web: DEBUG
+  pattern:
+    console: "%d{yyyy-MM-dd HH:mm:ss} - %msg%n"
+
+# API Documentation
+springdoc:
+  api-docs:
+    path: /api-docs
+  swagger-ui:
+    path: /swagger-ui.html
+    operations-sorter: method
+
+# Security Configuration
+security:
+  jwt:
+    secret: your-secret-key-here-change-in-production
+    expiration: 86400000 # 24 hours in milliseconds 

backend/src/main/resources/db/migration/V1__initial_schema.sql

@@ -0,0 +1,35 @@
+CREATE SCHEMA IF NOT EXISTS vibing;
+
+CREATE TABLE IF NOT EXISTS vibing.locations (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL,
+    address TEXT,
+    city TEXT,
+    country TEXT,
+    postal_code TEXT,
+    latitude DOUBLE PRECISION,
+    longitude DOUBLE PRECISION,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS vibing.activities (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL,
+    description TEXT,
+    price_range INT NOT NULL,
+    location_id INT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_location
+        FOREIGN KEY(location_id) 
+        REFERENCES vibing.locations(id)
+        ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS vibing.activity_tags (
+    activity_id INT NOT NULL,
+    tag TEXT NOT NULL,
+    FOREIGN KEY (activity_id) REFERENCES vibing.activities(id) ON DELETE CASCADE,
+    PRIMARY KEY (activity_id, tag)
+);

backend/src/test/java/com/vibing/backend/ActivityRepositoryTest.java

@@ -0,0 +1,277 @@
+package com.vibing.backend;
+
+import com.vibing.backend.model.Activity;
+import com.vibing.backend.model.Location;
+import com.vibing.backend.repository.ActivityRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.TestPropertySource;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for Activity entity using H2 database.
+ * Tests repository operations and database interactions.
+ */
+@DataJpaTest
+@ActiveProfiles("test")
+@TestPropertySource(locations = "classpath:application-test.yml")
+public class ActivityRepositoryTest {
+
+    @Autowired
+    private TestEntityManager entityManager;
+
+    @Autowired
+    private ActivityRepository activityRepository;
+
+    private Location testLocation;
+    private Activity testActivity;
+
+    @BeforeEach
+    void setUp() {
+        // Create and persist test location
+        testLocation = new Location();
+        testLocation.setName("Test Location");
+        testLocation.setAddress("123 Test Street");
+        testLocation.setCity("Test City");
+        testLocation.setCountry("Test Country");
+        testLocation.setPostalCode("12345");
+        testLocation.setLatitude(40.7128);
+        testLocation.setLongitude(-74.0060);
+        testLocation = entityManager.persistAndFlush(testLocation);
+
+        // Create test activity
+        testActivity = new Activity();
+        testActivity.setName("Test Activity");
+        testActivity.setDescription("A test activity for integration testing");
+        testActivity.setLocation(testLocation);
+        testActivity.setPriceRange(3);
+        testActivity.setTags(Arrays.asList("test", "integration", "fun"));
+    }
+
+    @Test
+    void shouldSaveAndRetrieveActivity() {
+        // Given - activity is created in setUp()
+
+        // When
+        Activity savedActivity = activityRepository.save(testActivity);
+        entityManager.flush();
+        entityManager.clear();
+
+        Optional<Activity> retrievedActivity = activityRepository.findById(savedActivity.getId());
+
+        // Then
+        assertThat(retrievedActivity).isPresent();
+        assertThat(retrievedActivity.get().getName()).isEqualTo("Test Activity");
+        assertThat(retrievedActivity.get().getDescription()).isEqualTo("A test activity for integration testing");
+        assertThat(retrievedActivity.get().getPriceRange()).isEqualTo(3);
+        assertThat(retrievedActivity.get().getLocation().getName()).isEqualTo("Test Location");
+        assertThat(retrievedActivity.get().getTags()).containsExactlyInAnyOrder("test", "integration", "fun");
+        assertThat(retrievedActivity.get().getCreatedAt()).isNotNull();
+        assertThat(retrievedActivity.get().getUpdatedAt()).isNotNull();
+    }
+
+    @Test
+    void shouldFindActivitiesByNameContainingIgnoreCase() {
+        // Given
+        Activity activity1 = new Activity();
+        activity1.setName("Beach Volleyball");
+        activity1.setLocation(testLocation);
+        activity1.setPriceRange(2);
+        activity1.setTags(Arrays.asList("sport", "beach"));
+
+        Activity activity2 = new Activity();
+        activity2.setName("Mountain Hiking");
+        activity2.setLocation(testLocation);
+        activity2.setPriceRange(1);
+        activity2.setTags(Arrays.asList("outdoor", "hiking"));
+
+        activityRepository.saveAll(Arrays.asList(activity1, activity2));
+        entityManager.flush();
+
+        // When
+        List<Activity> beachActivities = activityRepository.findByNameContainingIgnoreCase("beach");
+        List<Activity> mountainActivities = activityRepository.findByNameContainingIgnoreCase("MOUNTAIN");
+
+        // Then
+        assertThat(beachActivities).hasSize(1);
+        assertThat(beachActivities.get(0).getName()).isEqualTo("Beach Volleyball");
+
+        assertThat(mountainActivities).hasSize(1);
+        assertThat(mountainActivities.get(0).getName()).isEqualTo("Mountain Hiking");
+    }
+
+    @Test
+    void shouldFindActivitiesByPriceRange() {
+        // Given
+        Activity cheapActivity = new Activity();
+        cheapActivity.setName("Free Walking Tour");
+        cheapActivity.setLocation(testLocation);
+        cheapActivity.setPriceRange(1);
+        cheapActivity.setTags(Arrays.asList("free", "walking"));
+
+        Activity expensiveActivity = new Activity();
+        expensiveActivity.setName("Luxury Spa Day");
+        expensiveActivity.setLocation(testLocation);
+        expensiveActivity.setPriceRange(5);
+        expensiveActivity.setTags(Arrays.asList("luxury", "spa"));
+
+        activityRepository.saveAll(Arrays.asList(cheapActivity, expensiveActivity));
+        entityManager.flush();
+
+        // When
+        List<Activity> cheapActivities = activityRepository.findByPriceRange(1);
+        List<Activity> expensiveActivities = activityRepository.findByPriceRange(5);
+
+        // Then
+        assertThat(cheapActivities).hasSize(1);
+        assertThat(cheapActivities.get(0).getName()).isEqualTo("Free Walking Tour");
+
+        assertThat(expensiveActivities).hasSize(1);
+        assertThat(expensiveActivities.get(0).getName()).isEqualTo("Luxury Spa Day");
+    }
+
+    @Test
+    void shouldFindActivitiesByLocationId() {
+        // Given
+        Location anotherLocation = new Location();
+        anotherLocation.setName("Another Location");
+        anotherLocation.setCity("Another City");
+        anotherLocation = entityManager.persistAndFlush(anotherLocation);
+
+        Activity activityAtTestLocation = new Activity();
+        activityAtTestLocation.setName("Activity at Test Location");
+        activityAtTestLocation.setLocation(testLocation);
+        activityAtTestLocation.setPriceRange(2);
+
+        Activity activityAtAnotherLocation = new Activity();
+        activityAtAnotherLocation.setName("Activity at Another Location");
+        activityAtAnotherLocation.setLocation(anotherLocation);
+        activityAtAnotherLocation.setPriceRange(3);
+
+        activityRepository.saveAll(Arrays.asList(activityAtTestLocation, activityAtAnotherLocation));
+        entityManager.flush();
+
+        // When
+        List<Activity> activitiesAtTestLocation = activityRepository.findByLocationId(testLocation.getId());
+        List<Activity> activitiesAtAnotherLocation = activityRepository.findByLocationId(anotherLocation.getId());
+
+        // Then
+        assertThat(activitiesAtTestLocation).hasSize(1);
+        assertThat(activitiesAtTestLocation.get(0).getName()).isEqualTo("Activity at Test Location");
+
+        assertThat(activitiesAtAnotherLocation).hasSize(1);
+        assertThat(activitiesAtAnotherLocation.get(0).getName()).isEqualTo("Activity at Another Location");
+    }
+
+    @Test
+    void shouldFindActivitiesByTagsContaining() {
+        // Given
+        Activity outdoorActivity = new Activity();
+        outdoorActivity.setName("Rock Climbing");
+        outdoorActivity.setLocation(testLocation);
+        outdoorActivity.setPriceRange(3);
+        outdoorActivity.setTags(Arrays.asList("outdoor", "adventure", "climbing"));
+
+        Activity indoorActivity = new Activity();
+        indoorActivity.setName("Museum Visit");
+        indoorActivity.setLocation(testLocation);
+        indoorActivity.setPriceRange(2);
+        indoorActivity.setTags(Arrays.asList("indoor", "culture", "educational"));
+
+        activityRepository.saveAll(Arrays.asList(outdoorActivity, indoorActivity));
+        entityManager.flush();
+
+        // When
+        List<Activity> outdoorActivities = activityRepository.findByTagsContaining("outdoor");
+        List<Activity> cultureActivities = activityRepository.findByTagsContaining("culture");
+
+        // Then
+        assertThat(outdoorActivities).hasSize(1);
+        assertThat(outdoorActivities.get(0).getName()).isEqualTo("Rock Climbing");
+
+        assertThat(cultureActivities).hasSize(1);
+        assertThat(cultureActivities.get(0).getName()).isEqualTo("Museum Visit");
+    }
+
+    @Test
+    void shouldFindActivitiesByPriceRangeLessThanEqual() {
+        // Given
+        Activity cheapActivity = new Activity();
+        cheapActivity.setName("Budget Activity");
+        cheapActivity.setLocation(testLocation);
+        cheapActivity.setPriceRange(1);
+
+        Activity moderateActivity = new Activity();
+        moderateActivity.setName("Moderate Activity");
+        moderateActivity.setLocation(testLocation);
+        moderateActivity.setPriceRange(3);
+
+        Activity expensiveActivity = new Activity();
+        expensiveActivity.setName("Expensive Activity");
+        expensiveActivity.setLocation(testLocation);
+        expensiveActivity.setPriceRange(5);
+
+        activityRepository.saveAll(Arrays.asList(cheapActivity, moderateActivity, expensiveActivity));
+        entityManager.flush();
+
+        // When
+        List<Activity> budgetActivities = activityRepository.findByPriceRangeLessThanEqual(2);
+        List<Activity> moderateBudgetActivities = activityRepository.findByPriceRangeLessThanEqual(3);
+
+        // Then
+        assertThat(budgetActivities).hasSize(1);
+        assertThat(budgetActivities.get(0).getName()).isEqualTo("Budget Activity");
+
+        assertThat(moderateBudgetActivities).hasSize(2);
+        assertThat(moderateBudgetActivities)
+                .extracting(Activity::getName)
+                .containsExactlyInAnyOrder("Budget Activity", "Moderate Activity");
+    }
+
+    @Test
+    void shouldUpdateActivityTimestamps() {
+        // Given
+        Activity savedActivity = activityRepository.save(testActivity);
+        entityManager.flush();
+        entityManager.clear();
+
+        // When
+        Optional<Activity> retrievedActivity = activityRepository.findById(savedActivity.getId());
+        assertThat(retrievedActivity).isPresent();
+
+        Activity activityToUpdate = retrievedActivity.get();
+        activityToUpdate.setName("Updated Activity Name");
+        Activity updatedActivity = activityRepository.save(activityToUpdate);
+        entityManager.flush();
+
+        // Then
+        assertThat(updatedActivity.getCreatedAt()).isNotNull();
+        assertThat(updatedActivity.getUpdatedAt()).isNotNull();
+        assertThat(updatedActivity.getUpdatedAt()).isAfterOrEqualTo(updatedActivity.getCreatedAt());
+    }
+
+    @Test
+    void shouldDeleteActivity() {
+        // Given
+        Activity savedActivity = activityRepository.save(testActivity);
+        entityManager.flush();
+        Long activityId = savedActivity.getId();
+
+        // When
+        activityRepository.deleteById(activityId);
+        entityManager.flush();
+
+        // Then
+        Optional<Activity> deletedActivity = activityRepository.findById(activityId);
+        assertThat(deletedActivity).isEmpty();
+    }
+}

backend/src/test/java/com/vibing/backend/ActivityTestIt.java

@@ -0,0 +1,46 @@
+package com.vibing.backend;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsInAnyOrder;
+
+import java.time.LocalDateTime;
+import java.util.Random;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.TestPropertySource;
+
+import com.vibing.backend.model.Activity;
+import com.vibing.backend.model.Location;
+import com.vibing.backend.repository.ActivityRepository;
+import com.vibing.backend.service.ActivityService;
+
+import net.datafaker.Faker;
+
+@SpringBootTest
+@ActiveProfiles("test")
+@TestPropertySource(locations = "classpath:application-test.yml")
+public class ActivityTestIt {
+
+    private Faker faker = new Faker(new Random(123));
+    
+    @Autowired
+    private ActivityService activityService;
+
+    @Autowired
+    private ActivityRepository activityRepository;
+    
+    @Test
+    void shouldSaveActivity() {
+        Activity activity = new Activity();
+        activity.setName(faker.location().publicSpace());
+        activity.setPriceRange(faker.number().numberBetween(1, 5));
+        activity.setTags(faker.lorem().words(3));
+        activity.setLocation(new Location().withName(faker.location().publicSpace()));
+        activityRepository.save(activity);
+
+        assertThat(activityService.findAll(), containsInAnyOrder(activity));
+    }
+}

backend/src/test/java/com/vibing/backend/VibingBackendApplicationTests.java

@@ -0,0 +1,18 @@
+package com.vibing.backend;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+
+/**
+ * Basic test class for the Vibing Backend application.
+ */
+@SpringBootTest
+@ActiveProfiles("test")
+class VibingBackendApplicationTests {
+
+    @Test
+    void contextLoads() {
+        // This test verifies that the Spring application context loads successfully
+    }
+}

backend/src/test/resources/application-test.yml

@@ -0,0 +1,25 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;MODE=PostgreSQL;INIT=CREATE SCHEMA IF NOT EXISTS vibing
+    username: sa
+    password: 
+    driver-class-name: org.h2.Driver
+  
+  h2:
+    console:
+      enabled: true
+  
+  jpa:
+    hibernate:
+      ddl-auto: none  # Let Flyway handle schema creation
+    show-sql: true
+    database-platform: org.hibernate.dialect.H2Dialect
+    properties:
+      hibernate:
+        default_schema: vibing
+  
+  flyway:
+    enabled: true
+    clean-disabled: false  # Allow clean in tests
+    locations: classpath:db/migration
+    default-schema: vibing

local-dev/compose.yml

@@ -0,0 +1,11 @@
+services:
+  postgres:
+    image: postgres:15
+    ports:
+      - 5432:5432
+    environment:
+      POSTGRES_USER: vibing
+      POSTGRES_PASSWORD: vibing
+      POSTGRES_DB: vibing
+    volumes:
+      - postgres_data:/var/lib/postgresql/data