Complete Unit Tests

Author: widoz

@types/index.d.ts

@@ -17,6 +17,7 @@ declare namespace EntitiesSearch {
 	type Options<V> = Set<ControlOption<V>>;
 	type Value = string | number;
 
+	// TODO Can we convert QueryArguments to an Immutable Map?
 	interface QueryArguments
 		extends Partial<
 			Readonly<{

tests/client/unit/api/search-posts.test.ts

@@ -1,6 +1,7 @@
 /**
  * External dependencies
  */
+import EntitiesSearch from '@types';
 import { faker } from '@faker-js/faker';
 import { describe, it, expect, jest } from '@jest/globals';
 
@@ -26,6 +27,70 @@ describe( 'Search Posts', () => {
 			convertEntitiesToControlOptions( stubs, 'title', 'id' ).toArray()
 		);
 	} );
+
+	it( 'Should return a Set of Control Option with the title and id and extra fields.', async () => {
+		const stubs = stubEntities();
+		jest.mocked( searchEntities ).mockResolvedValue( stubs );
+		const posts = await searchPosts( 'Phrase', new Set( [ 'post' ] ), {
+			// @ts-ignore
+			fields: [ 'title', 'id', 'slug', 'post_content', 'post_excerpt' ],
+		} );
+
+		expect( posts.toArray() ).toEqual(
+			convertEntitiesToControlOptions(
+				stubs,
+				'title',
+				'id',
+				'slug',
+				'post_content',
+				'post_excerpt'
+			).toArray()
+		);
+	} );
+
+	it( 'Use the given label and value for the Control Options', async () => {
+		const stubs = new Set( [
+			{
+				post_excerpt: faker.lorem.word(),
+				slug: faker.lorem.slug(),
+			},
+		] );
+
+		jest.mocked( searchEntities ).mockResolvedValue( stubs );
+
+		const posts = await searchPosts( 'Phrase', new Set( [ 'post' ] ), {
+			// @ts-ignore
+			fields: [ 'post_excerpt', 'slug' ],
+		} );
+
+		expect( posts.toArray() ).toEqual(
+			convertEntitiesToControlOptions(
+				stubs,
+				'post_excerpt',
+				'slug'
+			).toArray()
+		);
+	} );
+
+	it( 'Expect to call searchEntities with the given parameters', async () => {
+		const postTypes = new Set( [ 'post' ] );
+		const phrase = 'Phrase';
+		const fields: EntitiesSearch.SearchQueryFields = [ 'title', 'id' ];
+		const queryArguments = {
+			fields,
+		};
+
+		jest.mocked( searchEntities ).mockResolvedValue( stubEntities() );
+
+		await searchPosts( phrase, postTypes, queryArguments );
+
+		expect( searchEntities ).toHaveBeenCalledWith(
+			'post',
+			postTypes,
+			phrase,
+			queryArguments
+		);
+	} );
 } );
 
 function stubEntities(): Set< { id: number; title: string } > {