Enhanced Todo Model: Robust Validation and Flexible Creation

.gitignore

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+<<<<<<< HEAD
+# Android Studio
+*.iml
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+=======
+# Gradle
+.gradle/
+build/
+out/
+
+# IntelliJ IDEA
+.idea/
+*.iml
+*.ipr
+*.iws
+>>>>>>> pr-2-CryptoSCK-kotlinTodoApp
+
+# Kotlin
+*.class
+*.log
+
+<<<<<<< HEAD
+# Dependency directories
+/node_modules
+/kotlin-js-store
+=======
+# macOS
+.DS_Store
+
+# Logs
+logs/
+*.log
+
+# Environment
+.env
+>>>>>>> pr-2-CryptoSCK-kotlinTodoApp
+
+# Compiled class files
+*.class
+
+<<<<<<< HEAD
+# Log files
+*.log
+
+# Virtual machine crash logs
+hs_err_pid*
+
+# Build output
+/out
+/target
+/bin
+
+# Gradle
+.gradle
+build/
+gradle-app.setting
+!gradle-wrapper.jar
+.gradletasknamecache
+
+# Kotlin-specific
+kotlin-js-store/
+
+# Environment and sensitive files
+.env
+*.properties
+local.properties
+
+# Temporary files
+*.tmp
+*.bak
+*~
+=======
+# Dependency directories
+node_modules/
+vendor/
+>>>>>>> pr-2-CryptoSCK-kotlinTodoApp

README.md

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-Hello
+# Todo App - Kotlin Test Suite
+
+## Testing Approach
+
+This project uses a custom test runner script (`test_runner.kts`) to validate the Todo model's functionality.
+
+### Test Coverage
+
+The test script covers the following scenarios:
+- Creating a todo with minimal data
+- Creating a todo with all optional properties
+- Toggling todo completion status
+- Validating title constraints
+  - Non-empty title
+  - Maximum title length (100 characters)
+- Validating description constraints
+  - Optional description
+  - Maximum description length (500 characters)
+- Validating due date constraints
+  - Due date must be in the future
+
+### Running Tests
+
+To run tests, execute the `test_runner.kts` script:
+
+```bash
+kotlinc -script test_runner.kts
+```
+
+### Note
+
+This approach provides a lightweight, script-based testing mechanism that can be easily integrated into CI/CD pipelines.

build.gradle.kts

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+plugins {
+    kotlin("jvm") version "1.8.0"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    // Kotlin standard library
+    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+
+    // Testing dependencies
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.8.1")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.8.1")
+    testImplementation("org.jetbrains.kotlin:kotlin-test:1.8.0")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}