1 files changed, 162 insertions, 0 deletions
diff --git a/util/wasm/batchedtestrunner/batchedtestrunner.js b/util/wasm/batchedtestrunner/batchedtestrunner.js
new file mode 100644
index 0000000000..9a7597b7b8
--- /dev/null
+++ b/util/wasm/batchedtestrunner/batchedtestrunner.js
@@ -0,0 +1,162 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+import {
+    AbortedError,
+    ModuleLoader,
+    ResourceFetcher,
+    ResourceLocator,
+} from './qwasmjsruntime.js';
+
+import { parseQuery, EventSource } from './util.js';
+
+class ProgramError extends Error {
+    constructor(exitCode) {
+        super(`The program reported an exit code of ${exitCode}`)
+    }
+}
+
+class RunnerStatus {
+    static Running = 'Running';
+    static Completed = 'Completed';
+    static Error = 'Error';
+}
+
+class TestStatus {
+    static Pending = 'Pending';
+    static Running = 'Running';
+    static Completed = 'Completed';
+    static Error = 'Error';
+    static Crashed = 'Crashed';
+}
+
+// Represents the public API of the runner.
+class WebApi {
+    #results = new Map();
+    #status = RunnerStatus.Running;
+    #statusChangedEventPrivate;
+    #testStatusChangedEventPrivate;
+
+    onStatusChanged =
+        new EventSource((privateInterface) => this.#statusChangedEventPrivate = privateInterface);
+    onTestStatusChanged =
+        new EventSource((privateInterface) =>
+            this.#testStatusChangedEventPrivate = privateInterface);
+
+    // The callback receives the private interface of this object, meant not to be used by the
+    // end user on the web side.
+    constructor(receivePrivateInterface) {
+        receivePrivateInterface({
+            registerTest: testName => this.#registerTest(testName),
+            setTestStatus: (testName, status) => this.#setTestStatus(testName, status),
+            setTestResultData: (testName, testStatus, exitCode, textOutput) =>
+                this.#setTestResultData(testName, testStatus, exitCode, textOutput),
+            setTestRunnerStatus: status => this.#setTestRunnerStatus(status),
+        });
+    }
+
+    get results() { return this.#results; }
+    get status() { return this.#status; }
+
+    #registerTest(testName) { this.#results.set(testName, { status: TestStatus.Pending }); }
+
+    #setTestStatus(testName, status) {
+        const testData = this.#results.get(testName);
+        if (testData.status === status)
+            return;
+        this.#results.get(testName).status = status;
+        this.#testStatusChangedEventPrivate.fireEvent(testName, status);
+    }
+
+    #setTestResultData(testName, testStatus, exitCode, textOutput) {
+        const testData = this.#results.get(testName);
+        const statusChanged = testStatus !== testData.status;
+        testData.status = testStatus;
+        testData.exitCode = exitCode;
+        testData.textOutput = textOutput;
+        if (statusChanged)
+            this.#testStatusChangedEventPrivate.fireEvent(testName, testStatus);
+    }
+
+    #setTestRunnerStatus(status) {
+        if (status === this.#status)
+            return;
+        this.#status = status;
+        this.#statusChangedEventPrivate.fireEvent(status);
+    }
+}
+
+class BatchedTestRunner {
+    static #TestBatchModuleName = 'test_batch';
+
+    #loader;
+    #privateWebApi;
+
+    constructor(loader, privateWebApi) {
+        this.#loader = loader;
+        this.#privateWebApi = privateWebApi;
+    }
+
+    async #doRun(testName) {
+        const module = await this.#loader.loadEmscriptenModule(
+            BatchedTestRunner.#TestBatchModuleName,
+            () => { }
+        );
+
+        const testsToExecute = testName ? [testName] : await this.#getTestClassNames(module);
+        testsToExecute.forEach(testClassName => this.#privateWebApi.registerTest(testClassName));
+        for (const testClassName of testsToExecute) {
+            let result = {};
+            this.#privateWebApi.setTestStatus(testClassName, TestStatus.Running);
+
+            try {
+                const LogToStdoutSpecialFilename = '-';
+                result = await module.exec({
+                    args: [testClassName, '-o', `${LogToStdoutSpecialFilename},xml`],
+                });
+
+                if (result.exitCode < 0)
+                    throw new ProgramError(result.exitCode);
+                result.status = TestStatus.Completed;
+            } catch (e) {
+                result.status = e instanceof ProgramError ? TestStatus.Error : TestStatus.Crashed;
+                result.stdout = e instanceof AbortedError ? e.stdout : result.stdout;
+            }
+            this.#privateWebApi.setTestResultData(
+                testClassName, result.status, result.exitCode, result.stdout);
+            }
+        }
+
+    async run(testName) {
+        try {
+            await this.#doRun(testName);
+            this.#privateWebApi.setTestRunnerStatus(RunnerStatus.Completed);
+        } catch (e) {
+            this.#privateWebApi.setTestRunnerStatus(RunnerStatus.Error);
+        }
+    }
+
+    async #getTestClassNames(module) {
+        return (await module.exec()).stdout.trim().split(' ');
+    }
+}
+
+(() => {
+    let privateWebApi;
+    window.qtTestRunner = new WebApi(privateApi => privateWebApi = privateApi);
+
+    const parsed = parseQuery(location.search);
+    const testName = parsed['qtestname'];
+    if (typeof testName !== 'undefined' && (typeof testName !== 'string' || testName === '')) {
+        console.error('The testName parameter is incorrect');
+        return;
+    }
+
+    const resourceLocator = new ResourceLocator('');
+    const testRunner = new BatchedTestRunner(
+        new ModuleLoader(new ResourceFetcher(resourceLocator), resourceLocator),
+        privateWebApi
+    );
+
+    testRunner.run(testName);
+})();