Fix failed tests

All tests passed up to the initializr-generator-spring module.

Author: YangSiJun528

initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/ProjectGeneratorIntegrationTests.java

@@ -23,6 +23,8 @@
 import io.spring.initializr.generator.buildsystem.BuildSystem;
 import io.spring.initializr.generator.buildsystem.gradle.GradleBuildSystem;
 import io.spring.initializr.generator.buildsystem.maven.MavenBuildSystem;
+import io.spring.initializr.generator.configuration.format.properties.PropertiesFormat;
+import io.spring.initializr.generator.configuration.format.yaml.YamlFormat;
 import io.spring.initializr.generator.language.java.JavaLanguage;
 import io.spring.initializr.generator.project.MutableProjectDescription;
 import io.spring.initializr.generator.project.ProjectGenerationConfiguration;
@@ -80,10 +82,27 @@ void customBaseDirectoryIsUsedWhenGeneratingProject() {
 					"test/demo-app/src/test/java/com/example/demo/DemoApplicationTests.java", "test/demo-app/HELP.md");
 	}
 
+	@Test
+	void yaml() {
+		MutableProjectDescription description = initProjectDescription();
+		description.setBuildSystem(new MavenBuildSystem());
+		description.setBaseDirectory("test/demo-app");
+		description.setConfigurationFileFormat(new YamlFormat());
+		ProjectStructure project = this.projectTester.generate(description);
+		assertThat(project).filePaths()
+			.containsOnly("test/demo-app/.gitignore", "test/demo-app/.gitattributes", "test/demo-app/pom.xml",
+					"test/demo-app/mvnw", "test/demo-app/mvnw.cmd",
+					"test/demo-app/.mvn/wrapper/maven-wrapper.properties",
+					"test/demo-app/src/main/java/com/example/demo/DemoApplication.java",
+					"test/demo-app/src/main/resources/application.yml",
+					"test/demo-app/src/test/java/com/example/demo/DemoApplicationTests.java", "test/demo-app/HELP.md");
+	}
+
 	@Test
 	void generatedMavenProjectBuilds(@TempDir Path mavenHome) throws Exception {
 		MutableProjectDescription description = initProjectDescription();
 		description.setBuildSystem(new MavenBuildSystem());
+		description.setConfigurationFileFormat(new YamlFormat());
 		ProjectStructure project = this.projectTester.generate(description);
 		Path projectDirectory = project.getProjectDirectory();
 		runBuild(mavenHome, projectDirectory, description);
@@ -146,6 +165,7 @@ private MutableProjectDescription initProjectDescription() {
 		description.setApplicationName("DemoApplication");
 		description.setPlatformVersion(Version.parse(SpringBootVersion.getVersion()));
 		description.setLanguage(new JavaLanguage(JAVA_VERSION));
+		description.setConfigurationFileFormat(new PropertiesFormat());
 		description.setGroupId("com.example");
 		return description;
 	}

initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/code/CodeComplianceTests.java

@@ -59,8 +59,7 @@ void currentGenerationJar(Language language) {
 					String.format("src/main/%s/com/example/demo/DemoApplication.%s", language.id(),
 							language.sourceFileExtension()),
 					String.format("src/test/%s/com/example/demo/DemoApplicationTests.%s", language.id(),
-							language.sourceFileExtension()),
-					"src/main/resources/application.properties");
+							language.sourceFileExtension()));
 	}
 
 	@ParameterizedTest
@@ -73,8 +72,7 @@ void currentGenerationWar(Language language) {
 					String.format("src/main/%s/com/example/demo/DemoApplication.%s", language.id(),
 							language.sourceFileExtension()),
 					String.format("src/test/%s/com/example/demo/DemoApplicationTests.%s", language.id(),
-							language.sourceFileExtension()),
-					"src/main/resources/application.properties");
+							language.sourceFileExtension()));
 	}
 
 	@ParameterizedTest

initializr-generator-test/src/main/java/io/spring/initializr/generator/test/InitializrMetadataTestBuilder.java

@@ -87,6 +87,7 @@ public InitializrMetadataTestBuilder addBasicDefaults() {
 		return addDefaultTypes().addDefaultPackagings()
 			.addDefaultJavaVersions()
 			.addDefaultLanguages()
+			.addDefaultConfigurationFileFormats()
 			.addDefaultBootVersions();
 	}
 
@@ -166,6 +167,21 @@ public InitializrMetadataTestBuilder addLanguage(String id, boolean defaultValue
 		return this;
 	}
 
+	public InitializrMetadataTestBuilder addDefaultConfigurationFileFormats() {
+		return addConfigurationFileFormats("properties", true).addConfigurationFileFormats("yml", false);
+	}
+
+	public InitializrMetadataTestBuilder addConfigurationFileFormats(String id, boolean defaultValue) {
+		this.builder.withCustomizer((it) -> {
+			DefaultMetadataElement element = new DefaultMetadataElement();
+			element.setId(id);
+			element.setName(id);
+			element.setDefault(defaultValue);
+			it.getConfigurationFileFormats().addContent(element);
+		});
+		return this;
+	}
+
 	public InitializrMetadataTestBuilder addDefaultBootVersions() {
 		return addBootVersion("2.2.17.RELEASE", false).addBootVersion("2.3.3.RELEASE", false)
 			.addBootVersion("2.4.1", true)