[INTERNAL] Groundwork for extension projects

test/fixtures/legacy.library.a/package.json

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+{
+  "name": "legacy.library.a",
+  "version": "1.0.0",
+  "description": "Simple SAPUI5 based library - legacy library missing ui5.yaml",
+  "devDependencies": {
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  }
+}

test/fixtures/legacy.library.a/src/legacy/library/a/.library

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+<?xml version="1.0" encoding="UTF-8" ?>
+<library xmlns="http://www.sap.com/sap.ui.library.xsd" >
+
+	<name>legacy.library.a</name>
+	<vendor>SAP SE</vendor>
+	<copyright>${copyright}</copyright>
+	<version>${version}</version>
+
+	<documentation>Legacy Library A</documentation>
+
+</library>

test/fixtures/legacy.library.a/src/legacy/library/a/some.js

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+/*!
+ * ${copyright}
+ */
+console.log('HelloWorld');

test/lib/extensions.js

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+const {test} = require("ava");
+const path = require("path");
+const projectPreprocessor = require("../..").projectPreprocessor;
+const applicationAPath = path.join(__dirname, "..", "fixtures", "application.a");
+const legacyLibraryAPath = path.join(__dirname, "..", "fixtures", "legacy.library.a");
+
+test("Projects with extension dependency inline configuration", (t) => {
+	const tree = {
+		id: "application.a",
+		path: applicationAPath,
+		dependencies: [{
+			id: "extension.a",
+			path: applicationAPath,
+			dependencies: [],
+			version: "1.0.0",
+			specVersion: "0.1",
+			kind: "extension",
+			type: "project-shim",
+			metadata: {
+				name: "shims.a"
+			},
+			configurations: {
+				"legacy.library.a": {
+					specVersion: "0.1",
+					type: "library",
+					metadata: {
+						name: "legacy.library.a",
+					}
+				}
+			}
+		}, {
+			id: "legacy.library.a",
+			version: "1.0.0",
+			path: legacyLibraryAPath,
+			dependencies: []
+		}],
+		version: "1.0.0",
+		specVersion: "0.1",
+		type: "application",
+		metadata: {
+			name: "xy"
+		}
+	};
+	return projectPreprocessor.processTree(tree).then((parsedTree) => {
+		t.deepEqual(parsedTree, {
+			_level: 0,
+			type: "application",
+			metadata: {
+				name: "xy",
+			},
+			resources: {
+				configuration: {
+					paths: {
+						webapp: "webapp"
+					}
+				},
+				pathMappings: {
+					"/": "webapp",
+				}
+			},
+			dependencies: [{
+				id: "legacy.library.a",
+				kind: "project",
+				version: "1.0.0",
+				specVersion: "0.1",
+				path: legacyLibraryAPath,
+				_level: 1,
+				type: "library",
+				metadata: {
+					name: "legacy.library.a",
+					copyright: "${copyright}",
+				},
+				resources: {
+					configuration: {
+						paths: {
+							src: "src",
+							test: "test"
+						}
+					},
+					pathMappings: {
+						"/resources/": "src",
+						"/test-resources/": "test"
+					}
+				},
+				dependencies: []
+			}],
+			id: "application.a",
+			kind: "project",
+			version: "1.0.0",
+			specVersion: "0.1",
+			path: applicationAPath
+		}, "Parsed correctly");
+	});
+});
+
+test("Projects with extension dependency inline configuration", (t) => {
+	const tree = {
+		id: "application.a",
+		path: applicationAPath,
+		dependencies: [{
+			id: "extension.a",
+			path: applicationAPath,
+			dependencies: [],
+			version: "1.0.0",
+			specVersion: "0.1",
+			kind: "extension",
+			type: "project-type",
+			metadata: {
+				name: "z"
+			}
+		}],
+		version: "1.0.0",
+		specVersion: "0.1",
+		type: "z",
+		metadata: {
+			name: "xy"
+		}
+	};
+	return t.throws(projectPreprocessor.processTree(tree).then((parsedTree) => {
+		t.deepEqual(parsedTree, {
+			_level: 0,
+			type: "z",
+			metadata: {
+				name: "xy",
+			},
+			resources: {
+				configuration: {
+					paths: {
+						root: ""
+					}
+				},
+				pathMappings: {
+					"/": "",
+				}
+			},
+			dependencies: [],
+			id: "application.a",
+			kind: "project",
+			version: "1.0.0",
+			specVersion: "0.1",
+			path: applicationAPath
+		}, "Parsed correctly");
+	}), "Unknown extension type 'project-type' for extension.a", "Rejected with error");
+});