test: Add e2e-tests

internal/e2e-tests/README.md

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+# E2E Tests for UI5 CLI
+
+End-to-end test environment for the UI5 CLI containing realistic user scenarios.
+
+## Usage
+
+```bash
+npm install
+npm run unit
+```
+
+## How It Works
+
+Tests are run with the **Node.js built-in test runner**. Each test:
+
+1. Copies a fixture project to a temporary directory (`./tmp`)
+2. Runs `npm install` there (child process)
+3. Runs `ui5 build` with varying configurations (child process)
+
+The UI5 CLI executables are sourced directly from this repository at `packages/cli/bin/ui5.cjs`.
+
+Some scenarios include multiple sequential builds with file modifications in between to simulate real-world development workflows. Node modules are getting installed on the fly for the first build and reused for subsequent builds (no reinstall).
+
+
+
+
+## Fixtures
+
+Located under `./fixtures/`:
+
+| Fixture | Description |
+|---|---|
+| `application.a` | Sample JavaScript project (controller + `manifest.json`) |
+| `application.a.ts` | Sample TypeScript project (based on [generator-ui5-ts-app](https://github.com/ui5-community/generator-ui5-ts-app)) |
+
+> **Note:** These tests are not yet included in any CI pipeline.

internal/e2e-tests/fixtures/application.a.ts/package.json

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+{
+	"name": "application.a.ts",
+	"version": "1.0.0",
+	"description": "UI5 Application: application.a.ts",
+	"license": "Apache-2.0",
+	"devDependencies": {
+		"@openui5/types": "1.115.1",
+		"ui5-tooling-transpile": "3.11.0"
+	}
+}

internal/e2e-tests/fixtures/application.a.ts/tsconfig.json

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+{
+	"compilerOptions": {
+		"target": "es2022",
+		"module": "es2022",
+		"moduleResolution": "node",
+		"skipLibCheck": true,
+		"allowJs": true,
+		"strict": true,
+		"strictNullChecks": false,
+		"strictPropertyInitialization": false,
+		"rootDir": "./webapp",
+		"types": ["@openui5/types", "@types/qunit"],
+		"paths": {
+			"application/a/ts/*": ["./webapp/*"],
+			"unit/*": ["./webapp/test/unit/*"],
+			"integration/*": ["./webapp/test/integration/*"]
+		}
+	},
+	"include": ["./webapp/**/*"],
+	"exclude": ["./webapp/coverage/**/*"]
+}

internal/e2e-tests/fixtures/application.a.ts/ui5-tooling-transpile.yaml

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+specVersion: "5.0"
+metadata:
+  name: application.a.ts
+type: application
+builder:
+  customTasks:
+    - name: ui5-tooling-transpile-task
+      afterTask: replaceVersion
+server:
+  customMiddleware:
+    - name: ui5-tooling-transpile-middleware
+      afterMiddleware: compression

internal/e2e-tests/fixtures/application.a.ts/webapp/controller/Test.controller.ts

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+type randomTSType = {
+	first: {
+		a: number,
+		b: number,
+		c: number
+	},
+	second: string
+}
+
+export default class Main {
+	onInit(): void {
+		const z : randomTSType = {
+			first: {
+				a: 1,
+				b: 2,
+				c: 3
+			},
+			second: "test"
+		};
+		console.log(z.first.a);
+	}
+}

internal/e2e-tests/fixtures/application.a.ts/webapp/manifest.json

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+{
+	"_version": "1.12.0",
+	"sap.app": {
+		"id": "application.a.ts",
+		"type": "application",
+		"i18n": "i18n/i18n.properties",
+		"title": "{{appTitle}}",
+		"description": "{{appDescription}}",
+		"applicationVersion": {
+			"version": "1.0.0"
+		}
+	},
+	"sap.ui": {
+		"technology": "UI5",
+		"icons": {},
+		"deviceTypes": {
+			"desktop": true,
+			"tablet": true,
+			"phone": true
+		}
+	},
+	"sap.ui5": {
+		"rootView": {
+			"viewName": "application.a.ts.view.App",
+			"type": "XML",
+			"async": true,
+			"id": "app"
+		},
+		"handleValidation": true,
+		"contentDensities": {
+			"compact": true,
+			"cozy": true
+		},
+		"models": {
+			"i18n": {
+				"type": "sap.ui.model.resource.ResourceModel",
+				"settings": {
+					"bundleName": "application.a.ts.i18n.i18n"
+				}
+			}
+		},
+		"routing": {
+			"config": {
+				"routerClass": "sap.m.routing.Router",
+				"viewType": "XML",
+				"viewPath": "application.a.ts.view",
+				"controlId": "app",
+				"controlAggregation": "pages",
+				"async": true
+			},
+			"routes": [
+				{
+					"pattern": "",
+					"name": "main",
+					"target": "main"
+				}
+			],
+			"targets": {
+				"main": {
+					"viewId": "main",
+					"viewName": "Main"
+				}
+			}
+		}
+	}
+}

internal/e2e-tests/fixtures/application.a/package.json

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+{
+	"name": "application.a",
+	"version": "1.0.0",
+	"description": "UI5 Application: application.a",
+	"license": "Apache-2.0",
+	"dependencies": {
+		"chart.js": "4.5.1"
+	},
+	"devDependencies": {
+		"@openui5/types": "1.115.1",
+		"ui5-task-zipper": "3.6.0",
+		"ui5-tooling-modules": "3.35.0",
+		"ui5-tooling-stringreplace": "3.6.0"
+	}
+}

internal/e2e-tests/fixtures/application.a/ui5-task-zipper.yaml

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+specVersion: "5.0"
+metadata:
+  name: application.a
+type: application
+builder:
+  customTasks:
+    - name: ui5-task-zipper
+      afterTask: generateVersionInfo
+      configuration:
+        archiveName: "webapp"

internal/e2e-tests/fixtures/application.a/ui5-tooling-modules.yaml

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+specVersion: "5.0"
+metadata:
+  name: application.a
+type: application
+server:
+  customMiddleware:
+    - name: ui5-tooling-modules-middleware
+      afterMiddleware: compression
+builder:
+  customTasks:
+    - name: ui5-tooling-modules-task
+      afterTask: replaceVersion

internal/e2e-tests/fixtures/application.a/ui5-tooling-stringreplace.yaml

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+specVersion: "5.0"
+metadata:
+  name: application.a
+type: application
+builder:
+  customTasks:
+    - name: ui5-tooling-stringreplace-task
+      afterTask: replaceVersion
+      configuration:
+        files:
+          - "**/*.js"
+        replace:
+          - placeholder: ${PLACEHOLDER_TEXT}
+            value: "'INSERTED_TEXT'"

internal/e2e-tests/fixtures/application.a/webapp/controller/Test.controller.js

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+sap.ui.define([], () => {
+	return Controller.extend("application.a.controller.Test",{
+		onInit() {
+			const z = {
+				first: {
+					a: 1,
+					b: 2,
+					c: 3
+				},
+				second: "test"
+			};
+			console.log(z.first.a);
+		}
+	});
+});
+

internal/e2e-tests/fixtures/application.a/webapp/manifest.json

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+{
+	"_version": "1.12.0",
+	"sap.app": {
+		"id": "application.a",
+		"type": "application",
+		"i18n": "i18n/i18n.properties",
+		"title": "{{appTitle}}",
+		"description": "{{appDescription}}",
+		"applicationVersion": {
+			"version": "1.0.0"
+		}
+	},
+	"sap.ui": {
+		"technology": "UI5",
+		"icons": {},
+		"deviceTypes": {
+			"desktop": true,
+			"tablet": true,
+			"phone": true
+		}
+	},
+	"sap.ui5": {
+		"rootView": {
+			"viewName": "application.a.view.App",
+			"type": "XML",
+			"async": true,
+			"id": "app"
+		},
+		"handleValidation": true,
+		"contentDensities": {
+			"compact": true,
+			"cozy": true
+		},
+		"models": {
+			"i18n": {
+				"type": "sap.ui.model.resource.ResourceModel",
+				"settings": {
+					"bundleName": "application.a.i18n.i18n"
+				}
+			}
+		},
+		"routing": {
+			"config": {
+				"routerClass": "sap.m.routing.Router",
+				"viewType": "XML",
+				"viewPath": "application.a.view",
+				"controlId": "app",
+				"controlAggregation": "pages",
+				"async": true
+			},
+			"routes": [
+				{
+					"pattern": "",
+					"name": "main",
+					"target": "main"
+				}
+			],
+			"targets": {
+				"main": {
+					"viewId": "main",
+					"viewName": "Main"
+				}
+			}
+		}
+	}
+}

internal/e2e-tests/package.json

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+{
+	"name": "@ui5-internal/e2e-tests",
+	"private": true,
+	"license": "Apache-2.0",
+	"type": "module",
+	"engines": {
+		"node": "^22.20.0 || >=24.0.0",
+		"npm": ">= 8"
+	},
+	"scripts": {
+		"unit": "node --test 'test/**/*.js'",
+		"unit-watch": "node --test --watch 'test/**/*.js'"
+	},
+	"dependencies": {
+		"adm-zip": "^0.5.17"
+	}
+}