feat(pipe): add spec file suffix option

src/lib/pipe/pipe.factory.test.ts

@@ -175,4 +175,38 @@ describe('Pipe Factory', () => {
         '}\n',
     );
   });
+  it('should create a spec file', async () => {
+    const options: PipeOptions = {
+      name: 'foo',
+      spec: true,
+      flat: true,
+    };
+    const tree: UnitTestTree = await runner
+      .runSchematicAsync('pipe', options)
+      .toPromise();
+    const files: string[] = tree.files;
+
+    expect(
+      files.find((filename) => filename === '/foo.pipe.spec.ts'),
+    ).not.toBeUndefined();
+  });
+  it('should create a spec file with custom file suffix', async () => {
+    const options: PipeOptions = {
+      name: 'foo',
+      spec: true,
+      specFileSuffix: 'test',
+      flat: true,
+    };
+    const tree: UnitTestTree = await runner
+      .runSchematicAsync('pipe', options)
+      .toPromise();
+    const files: string[] = tree.files;
+
+    expect(
+      files.find((filename) => filename === '/foo.pipe.spec.ts'),
+    ).toBeUndefined();
+    expect(
+      files.find((filename) => filename === '/foo.pipe.test.ts'),
+    ).toBeDefined();
+  });
 });

src/lib/pipe/pipe.factory.ts

@@ -32,6 +32,9 @@ function transform(options: PipeOptions): PipeOptions {
   target.name = normalizeToKebabOrSnakeCase(location.name);
   target.path = normalizeToKebabOrSnakeCase(location.path);
   target.language = target.language !== undefined ? target.language : 'ts';
+  target.specFileSuffix = normalizeToKebabOrSnakeCase(
+    options.specFileSuffix || 'spec',
+  );
 
   target.path = target.flat
     ? target.path
@@ -43,6 +46,13 @@ function generate(options: PipeOptions): Source {
   return (context: SchematicContext) =>
     apply(url(join('./files' as Path, options.language)), [
       options.spec ? noop() : filter((path) => !path.endsWith('.spec.ts')),
+      options.spec 
+        ? noop() 
+        : filter((path) => {
+            const languageExtension = options.language || 'ts';
+            const suffix = `.__specFileSuffix__.${languageExtension}`;
+            return !path.endsWith(suffix)
+        }),
       template({
         ...strings,
         ...options,

src/lib/pipe/pipe.schema.d.ts

@@ -21,6 +21,10 @@ export interface PipeOptions {
    * Specifies if a spec file is generated.
    */
   spec?: boolean;
+  /**
+   * Specifies the file suffix of spec files.
+   */
+  specFileSuffix?: string;
   /**
    * Flag to indicate if a directory is created.
    */

src/lib/pipe/schema.json

@@ -35,6 +35,11 @@
       "type": "boolean",
       "default": true,
       "description": "Specifies if a spec file is generated."
+    },
+    "specFileSuffix": {
+      "type": "string",
+      "default": "spec",
+      "description": "Specifies the file suffix of spec files."
     }
   },
   "required": ["name"]