feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 185 insertions, 0 deletions

diff --git a/vanilla/node_modules/@vitest/mocker/dist/index.js b/vanilla/node_modules/@vitest/mocker/dist/index.js
new file mode 100644
index 0000000..79c5c9a
--- /dev/null
+++ b/vanilla/node_modules/@vitest/mocker/dist/index.js
@@ -0,0 +1,185 @@
+export { A as AutomockedModule, b as AutospiedModule, a as ManualMockedModule, M as MockerRegistry, R as RedirectedModule } from './chunk-registry.js';
+
+function mockObject(options, object, mockExports = {}) {
+	const finalizers = new Array();
+	const refs = new RefTracker();
+	const define = (container, key, value) => {
+		try {
+			container[key] = value;
+			return true;
+		} catch {
+			return false;
+		}
+	};
+	const createMock = (currentValue) => {
+		if (!options.createMockInstance) {
+			throw new Error("[@vitest/mocker] `createMockInstance` is not defined. This is a Vitest error. Please open a new issue with reproduction.");
+		}
+		const createMockInstance = options.createMockInstance;
+		const prototypeMembers = currentValue.prototype ? collectFunctionProperties(currentValue.prototype) : [];
+		return createMockInstance({
+			name: currentValue.name,
+			prototypeMembers,
+			originalImplementation: options.type === "autospy" ? currentValue : undefined,
+			keepMembersImplementation: options.type === "autospy"
+		});
+	};
+	const mockPropertiesOf = (container, newContainer) => {
+		const containerType = getType(container);
+		const isModule = containerType === "Module" || !!container.__esModule;
+		for (const { key: property, descriptor } of getAllMockableProperties(container, isModule, options.globalConstructors)) {
+			// Modules define their exports as getters. We want to process those.
+			if (!isModule && descriptor.get) {
+				try {
+					if (options.type === "autospy") {
+						Object.defineProperty(newContainer, property, descriptor);
+					} else {
+						Object.defineProperty(newContainer, property, {
+							configurable: descriptor.configurable,
+							enumerable: descriptor.enumerable,
+							get: () => {},
+							set: descriptor.set ? () => {} : undefined
+						});
+					}
+				} catch {}
+				continue;
+			}
+			// Skip special read-only props, we don't want to mess with those.
+			if (isReadonlyProp(container[property], property)) {
+				continue;
+			}
+			const value = container[property];
+			// Special handling of references we've seen before to prevent infinite
+			// recursion in circular objects.
+			const refId = refs.getId(value);
+			if (refId !== undefined) {
+				finalizers.push(() => define(newContainer, property, refs.getMockedValue(refId)));
+				continue;
+			}
+			const type = getType(value);
+			if (Array.isArray(value)) {
+				if (options.type === "automock") {
+					define(newContainer, property, []);
+				} else {
+					const array = value.map((value) => {
+						if (value && typeof value === "object") {
+							const newObject = {};
+							mockPropertiesOf(value, newObject);
+							return newObject;
+						}
+						if (typeof value === "function") {
+							return createMock(value);
+						}
+						return value;
+					});
+					define(newContainer, property, array);
+				}
+				continue;
+			}
+			const isFunction = type.includes("Function") && typeof value === "function";
+			if ((!isFunction || value._isMockFunction) && type !== "Object" && type !== "Module") {
+				define(newContainer, property, value);
+				continue;
+			}
+			// Sometimes this assignment fails for some unknown reason. If it does,
+			// just move along.
+			if (!define(newContainer, property, isFunction || options.type === "autospy" ? value : {})) {
+				continue;
+			}
+			if (isFunction) {
+				const mock = createMock(newContainer[property]);
+				newContainer[property] = mock;
+			}
+			refs.track(value, newContainer[property]);
+			mockPropertiesOf(value, newContainer[property]);
+		}
+	};
+	const mockedObject = mockExports;
+	mockPropertiesOf(object, mockedObject);
+	// Plug together refs
+	for (const finalizer of finalizers) {
+		finalizer();
+	}
+	return mockedObject;
+}
+class RefTracker {
+	idMap = new Map();
+	mockedValueMap = new Map();
+	getId(value) {
+		return this.idMap.get(value);
+	}
+	getMockedValue(id) {
+		return this.mockedValueMap.get(id);
+	}
+	track(originalValue, mockedValue) {
+		const newId = this.idMap.size;
+		this.idMap.set(originalValue, newId);
+		this.mockedValueMap.set(newId, mockedValue);
+		return newId;
+	}
+}
+function getType(value) {
+	return Object.prototype.toString.apply(value).slice(8, -1);
+}
+function isReadonlyProp(object, prop) {
+	if (prop === "arguments" || prop === "caller" || prop === "callee" || prop === "name" || prop === "length") {
+		const typeName = getType(object);
+		return typeName === "Function" || typeName === "AsyncFunction" || typeName === "GeneratorFunction" || typeName === "AsyncGeneratorFunction";
+	}
+	if (prop === "source" || prop === "global" || prop === "ignoreCase" || prop === "multiline") {
+		return getType(object) === "RegExp";
+	}
+	return false;
+}
+function getAllMockableProperties(obj, isModule, constructors) {
+	const { Map, Object, Function, RegExp, Array } = constructors;
+	const allProps = new Map();
+	let curr = obj;
+	do {
+		// we don't need properties from these
+		if (curr === Object.prototype || curr === Function.prototype || curr === RegExp.prototype) {
+			break;
+		}
+		collectOwnProperties(curr, (key) => {
+			const descriptor = Object.getOwnPropertyDescriptor(curr, key);
+			if (descriptor) {
+				allProps.set(key, {
+					key,
+					descriptor
+				});
+			}
+		});
+	} while (curr = Object.getPrototypeOf(curr));
+	// default is not specified in ownKeys, if module is interoped
+	if (isModule && !allProps.has("default") && "default" in obj) {
+		const descriptor = Object.getOwnPropertyDescriptor(obj, "default");
+		if (descriptor) {
+			allProps.set("default", {
+				key: "default",
+				descriptor
+			});
+		}
+	}
+	return Array.from(allProps.values());
+}
+function collectOwnProperties(obj, collector) {
+	const collect = typeof collector === "function" ? collector : (key) => collector.add(key);
+	Object.getOwnPropertyNames(obj).forEach(collect);
+	Object.getOwnPropertySymbols(obj).forEach(collect);
+}
+function collectFunctionProperties(prototype) {
+	const properties = new Set();
+	collectOwnProperties(prototype, (prop) => {
+		const descriptor = Object.getOwnPropertyDescriptor(prototype, prop);
+		if (!descriptor || descriptor.get) {
+			return;
+		}
+		const type = getType(descriptor.value);
+		if (type.includes("Function") && !isReadonlyProp(descriptor.value, prop)) {
+			properties.add(prop);
+		}
+	});
+	return Array.from(properties);
+}
+
+export { mockObject };