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testRunner.js
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134 lines (112 loc) · 3.67 KB
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import Colors from './colors.js';
import Vendor from './vendor.build.js';
async function start(files) {
const results = {
tests: 0,
success: 0,
failed: 0,
};
for (const file of files) {
const mod = await import(file);
if (mod.default.__elixirscript_test_module__) {
runTests(mod, results);
}
}
return results;
}
function runSetup(mod, name, incomingContext = new Map()) {
if (mod.default[name]) {
const result = mod.default[name](incomingContext);
return resolveContext(result, incomingContext);
}
return incomingContext;
}
function runTeardown(mod, name, incomingContext) {
if (mod.default[name]) {
const result = mod.default[name](incomingContext);
}
}
function resolveContext(context, parentContext) {
if (context === Symbol.for('ok')) {
return parentContext;
} else if (context instanceof Vendor.ErlangTypes.Tuple && context.get(0) === Symbol.for('ok')) {
return resolveContext(context.get(1), parentContext);
} else if (context instanceof Map) {
return new Map([...parentContext, ...context]);
} else if (Array.isArray(context)) {
return mergeContextKeywordList(context, parentContext);
}
throw new Error('Invalid context');
}
function mergeContextKeywordList(context, parentContext) {
const newContext = new Map([...parentContext]);
for (const entry of context) {
newContext.set(entry.get(0), entry.get(1));
}
return newContext;
}
function runTests(mod, results) {
const contextSetupAll = runSetup(mod, '__elixirscript_test_setup_all');
for (const key of Object.keys(mod.default)) {
if (key.startsWith('__elixirscript_test_case')) {
results.tests++;
const test = mod.default[key]();
const result = runTest(mod, test, contextSetupAll, results);
if (result) {
results.success++;
} else {
results.failed++;
}
}
}
runTeardown(mod, '__elixirscript_test_teardown_all', contextSetupAll);
}
function runTest(mod, test, incomingContext, results) {
const context = runSetup(mod, '__elixirscript_test_setup', incomingContext);
let testPassed = true;
try {
test.get(Symbol.for('test'))(context);
process.stdout.write(Colors.fg.Green + '.' + Colors.Reset);
} catch (e) {
process.stdout.write('\n');
handleError(e, test, results, mod);
testPassed = false;
}
runTeardown(mod, '__elixirscript_test_teardown', context);
return testPassed;
}
function handleError(e, test, results, mod) {
if (e.__reason) {
if (e.__reason instanceof Map && e.__reason.get(Symbol.for('message'))) {
const errorMessage = e.__reason.get(Symbol.for('message'));
const expr = e.__reason.get(Symbol.for('expr'));
const left = e.__reason.get(Symbol.for('left'));
const right = e.__reason.get(Symbol.for('right'));
const file = e.__reason.get(Symbol.for('file'));
const line = e.__reason.get(Symbol.for('line'));
const moduleName = Symbol.keyFor(mod.default.__MODULE__).replace('Elixir.', '');
let testMessage = test.get(Symbol.for('message'));
testMessage = `${results.failed}) ${testMessage} (${moduleName})`;
printErrorLine(testMessage);
console.log(Colors.fg.Red, errorMessage, Colors.Reset);
printErrorLine(left, 'left');
printErrorLine(right, 'right');
printErrorLine(file, 'file');
printErrorLine(line, 'line');
}
} else {
console.log(e);
}
}
function printErrorLine(value, label = null) {
if (value && value !== Symbol.for('ex_unit_no_meaningful_value')) {
if (label) {
console.log(Colors.fg.Cyan, `${label}:`, Colors.Reset, `${value}`);
} else {
console.log(`${value}`, Colors.Reset);
}
}
}
export default {
start,
};