test(plugin-doc-coverage): create better test of integration

Author: aramirezj

packages/plugin-doc-coverage/mocks/fixtures/angular/app.component.css

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+/**
+ * A class that serves as an example for documentation coverage testing
+ */
+export class ExampleClass {}

packages/plugin-doc-coverage/mocks/fixtures/angular/app.component.html

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+/**
+ * Example enumeration representing different states or options
+ */
+export enum ExampleEnum {}

packages/plugin-doc-coverage/mocks/fixtures/angular/app.component.spec.ts

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+/**
+ * Interface representing a basic data structure
+ */
+export interface ExampleInterface {}

packages/plugin-doc-coverage/mocks/fixtures/angular/app.component.ts

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+/** Example class */
+export class Container {
+  /**
+   * An example method that returns a string
+   * @returns A string with the value 'exampleMethod'
+   */
+  exampleMethod(): string {
+    return 'exampleMethod';
+  }
+}

packages/plugin-doc-coverage/mocks/fixtures/angular/map-event.function.ts

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+/** Example class */
+export class ExampleWithProperties {
+  /**
+   * Internal identifier that can only be accessed within this class
+   * @private
+   */
+  private readonly internalId = '123';
+}