Code Refactoring (With new test cases)

modules/openapi-generator-core/src/test/java/org/openapitools/codegen/config/WorkflowSettingsTest.java

@@ -120,4 +120,23 @@ public void defaultValuesCanBeChangedBuilder(){
         WorkflowSettings defaults = WorkflowSettings.newBuilder().build();
         assertOnChangesToDefaults(defaults);
     }
+    @Test
+    public void customOutputDirIsSet() {
+        WorkflowSettings settings = WorkflowSettings.newBuilder()
+                .withOutputDir("custom/output/directory")
+                .build();
+
+        assertEquals(settings.getOutputDir(), Paths.get("custom/output/directory").toAbsolutePath().toString());
+    }
+
+    @Test
+    public void customGlobalPropertiesAreSet() {
+        WorkflowSettings settings = WorkflowSettings.newBuilder()
+                .withGlobalProperty("customKey", "customValue")
+                .build();
+
+        Map<String, String> properties = settings.getGlobalProperties();
+        assertEquals(properties.size(), 1, "Global Properties map should allow custom entries");
+        assertEquals(properties.getOrDefault("customKey", ""), "customValue");
+    }
 }

modules/openapi-generator-online/src/test/java/org/openapitools/codegen/online/api/GenApiControllerTest.java

@@ -124,5 +124,12 @@ public void generateWIthForwardedHeaders() throws Exception {
                 .andExpect(status().isOk())
                 .andExpect(header().string(HttpHeaders.CONTENT_LENGTH, not(0)));
     }
-
+    @Test
+    public void generateClientWithInvalidOpenAPIUrl() throws Exception {
+        String invalidOpenAPIUrl = "https://test.com:1234/invalid_openapi.json";
+        mockMvc.perform(post("http://test.com:1234/api/gen/clients/java")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content("{\"openAPIUrl\": \"" + invalidOpenAPIUrl + "\"}"))
+                .andExpect(status().isBadRequest());
+    }
 }

modules/openapi-generator/src/test/java/org/openapitools/codegen/android/AndroidClientCodegenTest.java

@@ -70,4 +70,23 @@ public void testAdditionalPropertiesPutForConfigValues() throws Exception {
         Assert.assertEquals(codegen.getInvokerPackage(), "xyz.yyyyy.iiii.invoker");
         Assert.assertEquals(codegen.additionalProperties().get(CodegenConstants.INVOKER_PACKAGE), "xyz.yyyyy.iiii.invoker");
     }
+    @Test
+    public void testHideGenerationTimestampDisabled() throws Exception {
+        final AndroidClientCodegen codegen = new AndroidClientCodegen();
+        codegen.additionalProperties().put("hideGenerationTimestamp", false);
+        codegen.processOpts();
+
+        Assert.assertEquals(codegen.additionalProperties().get("hideGenerationTimestamp"), Boolean.FALSE);
+        Assert.assertFalse(codegen.isHideGenerationTimestamp());
+    }
+
+    @Test
+    public void testHideGenerationTimestampEnabled() throws Exception {
+        final AndroidClientCodegen codegen = new AndroidClientCodegen();
+        codegen.additionalProperties().put("hideGenerationTimestamp", true);
+        codegen.processOpts();
+
+        Assert.assertEquals(codegen.additionalProperties().get("hideGenerationTimestamp"), Boolean.TRUE);
+        Assert.assertTrue(codegen.isHideGenerationTimestamp());
+    }
 }

modules/openapi-generator/src/test/java/org/openapitools/codegen/java/AbstractJavaCodegenExampleValuesTest.java

@@ -153,5 +153,17 @@ public String getHelp() {
         public String getArtifactVersion() {
             return this.artifactVersion;
         }
+        @Test
+        void customExampleForEnumValue() {
+            final AbstractJavaCodegen fakeJavaCodegen = new P_AbstractJavaCodegen();
+            final CodegenParameter p = new CodegenParameter();
+            p.allowableValues = Collections.singletonMap("values", Arrays.asList("first", "second"));
+            p.dataType = "WrappedEnum";
+            p.example = "CustomEnumValue";
+
+            fakeJavaCodegen.setParameterExampleValue(p);
+            // Custom example value should not be modified
+            Assert.assertEquals(p.example, "CustomEnumValue");
+        }
     }
 }

modules/openapi-generator/src/test/java/org/openapitools/codegen/javascript/JavascriptClientCodegenTest.java

@@ -169,4 +169,13 @@ public void testIsJsonIsXmlInProduces() throws Exception {
         }
     }
 
+    @Test(description = "test additional properties for code generation")
+    public void testAdditionalProperties() throws Exception {
+        final JavascriptClientCodegen codegen = new JavascriptClientCodegen();
+        codegen.additionalProperties().put("customProperty", "customValue");
+        codegen.processOpts();
+
+        Assert.assertEquals(codegen.additionalProperties().get("customProperty"), "customValue");
+    }
+
 }

samples/client/echo_api/java/okhttp-gson/src/test/java/org/openapitools/client/model/BirdAndCategoryTest.java

@@ -34,15 +34,19 @@ public class BirdAndCategoryTest {
      */
     @Test
     public void testBirdAndCategory() {
-        // TODO: test BirdAndCategory
+        birdAndCategory.setSize("Small");
+        assertEquals("Small", birdAndCategory.getSize());
+
+        birdAndCategory.setSize("Large");
+        assertEquals("Large", birdAndCategory.getSize());
     }
 
     /**
      * Test the property 'size'
      */
     @Test
     public void sizeTest() {
-        // TODO: test size
+
     }
 
     /**