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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// A minimal async test runner for Qt async auto tests.
//
// Usage: Call runTest(name, testFunctionCompleted), where "name" is the name of the app
// (the .wasm file name), and testFunctionCompleted is a test-function-complete
// callback. The test runner will then instantiate the app and run tests.
//
// The test runner expects that the app instance defines the following
// functions:
//
// void cleanupTestCase()
// string getTestFunctions()
// runTestFunction(string)
//
// Further, the test runner expects that the app instance calls
// completeTestFunction() (below - note that both the instance and this
// file have a function with that name) when a test function finishes. This
// can be done during runTestFunction(), or after it has returned (this
// is the part which enables async testing). Test functions which fail
// to call completeTestFunction() will time out after 2000ms.
//
const g_maxTime = 2000;
class TestFunction {
constructor(instance, name) {
this.instance = instance;
this.name = name;
this.resolve = undefined;
this.reject = undefined;
this.timeoutId = undefined;
}
complete(result, details) {
// Reset timeout
clearTimeout(this.timeoutId);
this.timeoutId = undefined;
const callback = result.startsWith('FAIL') ? this.reject : this.resolve;
callback(`${result}${details ? ': ' + details : ''}`);
}
run() {
// Set timer which will catch test functions
// which fail to call completeTestFunction()
this.timeoutId = setTimeout(() => {
completeTestFunction(this.name, 'FAIL', `Timeout after ${g_maxTime} ms`)
}, g_maxTime);
return new Promise((resolve, reject) => {
this.resolve = resolve;
this.reject = reject;
this.instance.runTestFunction(this.name);
});
}
};
function completeTestFunction(testFunctionName, result, details) {
if (!window.currentTestFunction || testFunctionName !== window.currentTestFunction.name)
return;
window.currentTestFunction.complete(result, details);
}
async function runTestFunction(instance, name) {
if (window.currentTestFunction) {
throw new Error(`While trying to run ${name}: Last function hasn't yet finished`);
}
window.currentTestFunction = new TestFunction(instance, name);
try {
const result = await window.currentTestFunction.run();
return result;
} finally {
delete window.currentTestFunction;
}
}
async function runTestCaseImpl(entryFunction, testFunctionStarted, testFunctionCompleted, qtContainers)
{
// Create test case instance
const config = {
qtContainerElements: qtContainers || []
}
const instance = await entryFunction(config);
// Run all test functions
const functionsString = instance.getTestFunctions();
const functions = functionsString.split(" ").filter(Boolean);
for (const name of functions) {
testFunctionStarted(name);
try {
const result = await runTestFunction(instance, name);
testFunctionCompleted(result);
} catch (err) {
testFunctionCompleted(err.message ?? err);
}
}
// Cleanup
instance.cleanupTestCase();
}
var g_htmlLogElement = undefined;
function testFunctionStarted(name) {
let line = name + ": ";
g_htmlLogElement.innerHTML += line;
}
function testFunctionCompleted(status) {
const color = (status) => {
if (status.startsWith("PASS"))
return "green";
if (status.startsWith("FAIL"))
return "red";
if (status.startsWith("SKIP"))
return "tan";
return "black";
};
const line = `<span style='color: ${color(status)};'>${status}</text><br>`;
g_htmlLogElement.innerHTML += line;
}
async function runTestCase(entryFunction, htmlLogElement, qtContainers)
{
g_htmlLogElement = htmlLogElement;
try {
await runTestCaseImpl(entryFunction, testFunctionStarted, testFunctionCompleted, qtContainers);
g_htmlLogElement.innerHTML += "<br> DONE"
} catch (err) {
g_htmlLogElement.innerHTML += err
}
}
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