test(project): Add ProjectBuilder integration test

Author: matz3

packages/project/test/lib/build/ProjectBuilder.integration.js

@@ -0,0 +1,84 @@
+import test from "ava";
+import sinonGlobal from "sinon";
+import {fileURLToPath} from "node:url";
+import ProjectGraph from "../../../lib/graph/ProjectGraph.js";
+import ProjectBuilder from "../../../lib/build/ProjectBuilder.js";
+import Application from "../../../lib/specifications/types/Application.js";
+import * as taskRepository from "@ui5/builder/internal/taskRepository";
+
+test.beforeEach((t) => {
+	t.context.sinon = sinonGlobal.createSandbox();
+});
+
+test.afterEach.always((t) => {
+	t.context.sinon.restore();
+	delete process.env.UI5_DATA_DIR;
+});
+
+test.serial("Build application project twice without changes", async (t) => {
+	const {sinon} = t.context;
+
+	process.env.UI5_DATA_DIR = getTmpPath("application.a/.ui5");
+
+	async function createProjectBuilder() {
+		const customApplicationProject = new Application();
+		await customApplicationProject.init({
+			"id": "application.a",
+			"version": "1.0.0",
+			"modulePath": getFixturePath("application.a"),
+			"configuration": {
+				"specVersion": "5.0",
+				"type": "application",
+				"metadata": {
+					"name": "application.a"
+				},
+				"kind": "project"
+			}
+		});
+
+		const graph = new ProjectGraph({
+			rootProjectName: customApplicationProject.getName(),
+		});
+		graph.addProject(customApplicationProject);
+		graph.seal(); // Graph needs to be sealed before building
+
+		const buildConfig = {};
+
+		const projectBuilder = new ProjectBuilder({
+			graph,
+			taskRepository,
+			buildConfig
+		});
+		sinon.spy(projectBuilder, "_buildProject");
+		return projectBuilder;
+	}
+
+	const destPath = getTmpPath("application.a/dist");
+
+	let projectBuilder = await createProjectBuilder();
+
+	// First build (with empty cache)
+	await projectBuilder.build({destPath});
+
+	t.is(projectBuilder._buildProject.callCount, 1);
+	t.is(
+		projectBuilder._buildProject.getCall(0).args[0].getProject().getName(),
+		"application.a",
+		"application.a built in first build"
+	);
+
+	// Second build (with cache, no changes)
+	projectBuilder = await createProjectBuilder();
+
+	await projectBuilder.build({destPath});
+
+	t.is(projectBuilder._buildProject.callCount, 0, "No projects built in second build");
+});
+
+function getFixturePath(fixtureName) {
+	return fileURLToPath(new URL(`../../fixtures/${fixtureName}`, import.meta.url));
+}
+
+function getTmpPath(folderName) {
+	return fileURLToPath(new URL(`../../tmp/${folderName}`, import.meta.url));
+}