fix(Spring Boot): adds test for validation of body params of forms requests

Author: oliverkuntze

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

@@ -2743,6 +2743,42 @@ public void useBeanValidationGenerateAnnotationsForRequestBody_issue13932() thro
                 .containsWithNameAndAttributes("Min", ImmutableMap.of("value", "2"));
     }
 
+    @Test
+    public void useBeanValidationGenerateAnnotationsForFormsRequestBody() throws IOException {
+        File output = Files.createTempDirectory("test").toFile().getCanonicalFile();
+        output.deleteOnExit();
+
+        OpenAPI openAPI = new OpenAPIParser()
+                .readLocation("src/test/resources/3_0/spring/form-requestbody-params-with-constraints.yaml", null, new ParseOptions()).getOpenAPI();
+        SpringCodegen codegen = new SpringCodegen();
+        codegen.setLibrary(SPRING_BOOT);
+        codegen.setOutputDir(output.getAbsolutePath());
+        codegen.additionalProperties().put(SpringCodegen.INTERFACE_ONLY, "true");
+        codegen.additionalProperties().put(SpringCodegen.USE_BEANVALIDATION, "true");
+        codegen.additionalProperties().put(CodegenConstants.MODEL_PACKAGE, "xyz.model");
+        codegen.additionalProperties().put(CodegenConstants.API_PACKAGE, "xyz.controller");
+
+        ClientOptInput input = new ClientOptInput()
+                .openAPI(openAPI)
+                .config(codegen);
+
+        DefaultGenerator generator = new DefaultGenerator();
+        generator.setGenerateMetadata(false);
+        Map<String, File> files = generator.opts(input).generate().stream()
+                .collect(Collectors.toMap(File::getName, Function.identity()));
+
+        JavaFileAssert.assertThat(files.get("AddApi.java"))
+                .assertMethod("addPost")
+                .assertParameter("name")
+                .assertParameterAnnotations()
+                .containsWithNameAndAttributes("Pattern", ImmutableMap.of("regexp", "\"^[[:print:]]+$\""))
+                .toParameter()
+                .toMethod()
+                .assertParameter("quantity")
+                .assertParameterAnnotations()
+                .containsWithNameAndAttributes("Min", ImmutableMap.of("value", "1"));
+    }
+
     @Test
     public void shouldHandleSeparatelyInterfaceAndModelAdditionalAnnotations() throws IOException {
         File output = Files.createTempDirectory("test").toFile().getCanonicalFile();

modules/openapi-generator/src/test/resources/3_0/spring/form-requestbody-params-with-constraints.yaml

@@ -0,0 +1,32 @@
+openapi: 3.0.1
+info:
+  title: Test form
+  version: 1.0.0
+servers:
+  - url: https://where.am.i
+paths:
+  /add:
+    post:
+      requestBody:
+        required: true
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              type: object
+              required:
+                - id
+                - quantity
+              properties:
+                name:
+                  type: string
+                  pattern: '^[[:print:]]+$'
+                quantity:
+                  type: integer
+                  minimum: 1
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: boolean