feat: adds revisions and testing to bulk sample generator mode

KerryFerguson04 · KerryFerguson04 · commit 182ab212335b · 2025-08-29T15:34:35.000Z
diff --git a/lesson_09/types/types_app/README.md b/lesson_09/types/types_app/README.md
@@ -69,3 +69,52 @@ Example:
 ---
 
 *Need help? Check the full documentation in the parent directory or run the tests with `./gradlew :types_app:test`*
+
+## 🧪 Testing
+
+### Running Tests
+
+Execute all tests for the types application:
+
+```bash
+cd /workspaces/code-society-25-2/lesson_09/types
+./gradlew test
+```
+
+### Test Suites
+
+#### Core Functionality Tests (`Lesson9Test.java`)
+- **DataProvider Configuration**: Validates that each provider is properly configured
+- **Data Parsing**: Tests type conversion and data processing
+- **File Loading**: Ensures JSON files can be loaded and parsed correctly
+- **Provider Uniqueness**: Verifies that provider names are unique
+
+#### Bulk Mode Tests (`BulkModeTest.java`)
+- **Multi-Provider Processing**: Tests bulk generation with multiple DataProviders
+- **Case-Insensitive Arguments**: Verifies `--bulk`, `--BULK`, `--BuLk` all work
+- **Edge Case Handling**: Tests with empty provider lists and no arguments
+- **File Generation Integration**: Tests actual file creation using temporary directories
+- **Mode Separation**: Ensures bulk and single-provider modes work independently
+
+### Test Coverage Details
+
+The test suite covers:
+- ✅ **Argument Parsing**: All command-line argument combinations
+- ✅ **File Generation**: Both bulk and single-provider file creation
+- ✅ **Error Handling**: Graceful handling of edge cases
+- ✅ **Output Verification**: Console messages and user feedback
+- ✅ **Integration**: End-to-end workflow testing
+- ✅ **Data Type Accuracy**: Generated data matches provider specifications
+
+### Quality Assurance
+
+Run complete quality checks:
+```bash
+./gradlew check          # Tests + formatting + linting
+./gradlew spotlessApply  # Apply code formatting
+./gradlew spotlessCheck  # Verify formatting compliance
+```
+
+---
+
+*Need help? Check the full documentation in the parent directory or run the tests with `./gradlew :types_app:test`*
diff --git a/lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/Lesson9.java b/lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/Lesson9.java
@@ -24,16 +24,6 @@ public Lesson9(List<DataProvider> dataProviders) {
     this.dataProviders = dataProviders;
   }
 
-  private void generateFileFor(DataProvider provider) throws Exception {
-    String path = getDataPath();
-    var fileGenerator = new SampleFileGenerator();
-
-    // Use the provider-aware method to ensure correct data types
-    fileGenerator.createTestFileForProvider(path, provider);
-
-    System.out.println("Generated file for provider: " + provider.getProviderName());
-  }
-
   public static void main(String[] args) {
     var application = new SpringApplication(Lesson9.class);
     // This removes the Spring Boot startup logs to make the output cleaner
@@ -50,8 +40,11 @@ public void run(String... args) throws Exception {
       System.out.println("       Running Bulk Mode      ");
       System.out.println("==============================\n");
 
+      String path = getDataPath();
+      var fileGenerator = new SampleFileGenerator();
+
       for (DataProvider provider : dataProviders) {
-        generateFileFor(provider);
+        fileGenerator.generateSampleFileForProvider(path, provider);
       }
 
       System.out.println("\n============ Done =============");
diff --git a/lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/generator/SampleFileGenerator.java b/lesson_09/types/types_app/src/main/java/com/codedifferently/lesson9/generator/SampleFileGenerator.java
@@ -1,8 +1,13 @@
 package com.codedifferently.lesson9.generator;
 
-// ENHANCEMENT: Added DataProvider import to support provider-aware generation
 import com.codedifferently.lesson9.dataprovider.DataProvider;
-import com.codedifferently.lesson9.generator.Generators.*;
+import com.codedifferently.lesson9.generator.Generators.BooleanValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.DoubleValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.FloatValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.IntValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.LongValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.ShortValueGenerator;
+import com.codedifferently.lesson9.generator.Generators.StringValueGenerator;
 import com.google.gson.GsonBuilder;
 import java.io.File;
 import java.io.FileWriter;
@@ -14,19 +19,7 @@
 import java.util.List;
 import java.util.Map;
 
-/**
- * A class to generate sample files with random data.
- *
- * <p>ENHANCEMENT SUMMARY: - Added provider-aware generation capability for test compatibility -
- * Fixed critical bugs in row generation logic - Modernized code with Java 14+ switch expressions -
- * Improved type safety with proper generic usage
- *
- * <p>CHANGES MADE: 1. NEW FEATURE: Provider-aware generation via createTestFileForProvider() 2. BUG
- * FIX: Fixed double row generation in createSampleData() 3. BUG FIX: Fixed ignored parameter in
- * createRow() method 4. ENHANCEMENT: Modern switch expressions in generateValueForType() 5. TYPE
- * SAFETY: Added Class<?> wildcards for better generics 6. BACKWARD COMPATIBILITY: All original
- * methods preserved
- */
+/** A class to generate a sample file with random data. */
 public class SampleFileGenerator {
 
   private static final ValueGenerator[] GENERATORS = {
@@ -40,8 +33,8 @@ public class SampleFileGenerator {
   };
 
   /**
-   * ORIGINAL METHOD: Create a test file with random sample data. This method uses shuffled
-   * generators to create random data types for each column. Preserved for backward compatibility.
+   * Create a test file with random sample data. This method uses shuffled generators to create
+   * random data types for each column. Preserved for backward compatibility.
    *
    * @param path the path to the directory where the file will be created
    * @param providerName the name of the provider
@@ -53,9 +46,9 @@ public void createTestFile(String path, String providerName) {
   }
 
   /**
-   * NEW METHOD: Create a test file with sample data that matches the DataProvider's expected types.
-   * This is the enhanced version that ensures test compatibility by generating data according to
-   * the provider's type specifications.
+   * Create a test file with sample data that matches the DataProvider's expected types. This is the
+   * enhanced version that ensures test compatibility by generating data according to the provider's
+   * type specifications.
    *
    * @param path the path to the directory where the file will be created
    * @param provider the DataProvider to generate data for
@@ -72,9 +65,6 @@ private List<ValueGenerator> getShuffledGenerators() {
     return generators;
   }
 
-  // BUG FIX: Fixed the double-generation bug in this method
-  // BEFORE: Created row twice per iteration (unused variable + actual add)
-  // AFTER: Clean single row generation per iteration
   private ArrayList<Map<String, String>> createSampleData(List<ValueGenerator> generators) {
     var rows = new ArrayList<Map<String, String>>();
     for (var i = 0; i < 10; ++i) {
@@ -96,9 +86,6 @@ private ArrayList<Map<String, String>> createSampleDataForProvider(DataProvider
     return rows;
   }
 
-  // BUG FIX: Fixed the ignored parameter bug in this method
-  // BEFORE: Ignored 'generators' parameter and used static GENERATORS array
-  // AFTER: Properly uses the passed-in generators parameter
   private Map<String, String> createRow(List<ValueGenerator> generators) {
     var row = new LinkedHashMap<String, String>();
     for (int i = 0; i < generators.size(); ++i) { // Fixed: use parameter size
@@ -144,6 +131,19 @@ private String generateValueForType(Class<?> type) { // Wildcard - best practice
     };
   }
 
+  /**
+   * Generate a file for a specific DataProvider. This method handles the complete file generation
+   * process including path setup.
+   *
+   * @param path the path to the directory where the file will be created
+   * @param provider the DataProvider to generate data for
+   */
+  public void generateSampleFileForProvider(String path, DataProvider provider) {
+    // Use the provider-aware method to ensure correct data types
+    createTestFileForProvider(path, provider);
+    System.out.println("Generated file for provider: " + provider.getProviderName());
+  }
+
   private void saveToJsonFile(
       String path, String providerName, ArrayList<Map<String, String>> rows) {
     var file = new File(path + File.separator + providerName + ".json");
diff --git a/lesson_09/types/types_app/src/test/java/com/codedifferently/lesson9/BulkModeTest.java b/lesson_09/types/types_app/src/test/java/com/codedifferently/lesson9/BulkModeTest.java
