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index.spec.ts
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index.spec.ts
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import { _test } from './testlib';
import * as expect from 'expect';
import { join, resolve, sep as pathSep } from 'path';
import { tmpdir } from 'os';
import semver = require('semver');
import { ts } from './helpers';
import { lstatSync, mkdtempSync } from 'fs';
import { npath } from '@yarnpkg/fslib';
import type _createRequire from 'create-require';
import { pathToFileURL } from 'url';
import { createExec } from './exec-helpers';
import {
BIN_CWD_PATH,
BIN_PATH,
BIN_SCRIPT_PATH,
DIST_DIR,
ROOT_DIR,
TEST_DIR,
testsDirRequire,
tsNodeTypes,
xfs,
contextTsNodeUnderTest,
CMD_TS_NODE_WITH_PROJECT_FLAG,
CMD_TS_NODE_WITHOUT_PROJECT_FLAG,
CMD_ESM_LOADER_WITHOUT_PROJECT,
EXPERIMENTAL_MODULES_FLAG,
} from './helpers';
const exec = createExec({
cwd: TEST_DIR,
});
const test = _test.context(contextTsNodeUnderTest);
test.suite('ts-node', (test) => {
test('should export the correct version', (t) => {
expect(t.context.tsNodeUnderTest.VERSION).toBe(
require('../../package.json').version
);
});
test('should export all CJS entrypoints', () => {
// Ensure our package.json "exports" declaration allows `require()`ing all our entrypoints
// https://github.com/TypeStrong/ts-node/pull/1026
testsDirRequire.resolve('ts-node');
// only reliably way to ask node for the root path of a dependency is Path.resolve(require.resolve('ts-node/package'), '..')
testsDirRequire.resolve('ts-node/package');
testsDirRequire.resolve('ts-node/package.json');
// All bin entrypoints for people who need to augment our CLI: `node -r otherstuff ./node_modules/ts-node/dist/bin`
testsDirRequire.resolve('ts-node/dist/bin');
testsDirRequire.resolve('ts-node/dist/bin.js');
testsDirRequire.resolve('ts-node/dist/bin-transpile');
testsDirRequire.resolve('ts-node/dist/bin-transpile.js');
testsDirRequire.resolve('ts-node/dist/bin-script');
testsDirRequire.resolve('ts-node/dist/bin-script.js');
testsDirRequire.resolve('ts-node/dist/bin-cwd');
testsDirRequire.resolve('ts-node/dist/bin-cwd.js');
// Must be `require()`able obviously
testsDirRequire.resolve('ts-node/register');
testsDirRequire.resolve('ts-node/register/files');
testsDirRequire.resolve('ts-node/register/transpile-only');
testsDirRequire.resolve('ts-node/register/type-check');
// `node --loader ts-node/esm`
testsDirRequire.resolve('ts-node/esm');
testsDirRequire.resolve('ts-node/esm.mjs');
testsDirRequire.resolve('ts-node/esm/transpile-only');
testsDirRequire.resolve('ts-node/esm/transpile-only.mjs');
testsDirRequire.resolve('ts-node/transpilers/swc');
testsDirRequire.resolve('ts-node/transpilers/swc-experimental');
testsDirRequire.resolve('ts-node/node10/tsconfig.json');
testsDirRequire.resolve('ts-node/node12/tsconfig.json');
testsDirRequire.resolve('ts-node/node14/tsconfig.json');
testsDirRequire.resolve('ts-node/node16/tsconfig.json');
});
test.suite('cli', (test) => {
test('should execute cli', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} hello-world`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\n');
});
test('shows usage via --help', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} --help`
);
expect(err).toBe(null);
expect(stdout).toMatch(/Usage: ts-node /);
});
test('shows version via -v', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} -v`
);
expect(err).toBe(null);
expect(stdout.trim()).toBe(
'v' + testsDirRequire('ts-node/package').version
);
});
test('shows version of compiler via -vv', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} -vv`
);
expect(err).toBe(null);
expect(stdout.trim()).toBe(
`ts-node v${testsDirRequire('ts-node/package').version}\n` +
`node ${process.version}\n` +
`compiler v${testsDirRequire('typescript/package').version}`
);
});
test('should register via cli', async () => {
const { err, stdout } = await exec(
`node -r ts-node/register hello-world.ts`,
{
cwd: TEST_DIR,
}
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\n');
});
test('should execute cli with absolute path', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} "${join(TEST_DIR, 'hello-world')}"`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\n');
});
test('should print scripts', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -pe "import { example } from './complex/index';example()"`
);
expect(err).toBe(null);
expect(stdout).toBe('example\n');
});
test('should provide registered information globally', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} env`
);
expect(err).toBe(null);
expect(stdout).toBe('object\n');
});
test('should provide registered information on register', async () => {
const { err, stdout } = await exec(`node -r ts-node/register env.ts`, {
cwd: TEST_DIR,
});
expect(err).toBe(null);
expect(stdout).toBe('object\n');
});
if (semver.gte(ts.version, '1.8.0')) {
test('should allow js', async () => {
const { err, stdout } = await exec(
[
CMD_TS_NODE_WITH_PROJECT_FLAG,
'-O "{\\"allowJs\\":true}"',
'-pe "import { main } from \'./allow-js/run\';main()"',
].join(' ')
);
expect(err).toBe(null);
expect(stdout).toBe('hello world\n');
});
test('should include jsx when `allow-js` true', async () => {
const { err, stdout } = await exec(
[
CMD_TS_NODE_WITH_PROJECT_FLAG,
'-O "{\\"allowJs\\":true}"',
'-pe "import { Foo2 } from \'./allow-js/with-jsx\'; Foo2.sayHi()"',
].join(' ')
);
expect(err).toBe(null);
expect(stdout).toBe('hello world\n');
});
test('should support cts when module = CommonJS', async () => {
const { err, stdout } = await exec(
[
CMD_TS_NODE_WITH_PROJECT_FLAG,
'-O "{\\"module\\":"CommonJS"}"',
'-pe "import { main } from \'./ts45-ext/ext-cts/index\';main()"',
].join(' ')
);
expect(err).toBe(null);
expect(stdout).toBe('hello world\n');
});
test('should support cts when module = ESNext', async () => {
const { err, stdout } = await exec(
[
CMD_TS_NODE_WITH_PROJECT_FLAG,
'-O "{\\"module\\":"ESNext"}"',
'-pe "import { main } from \'./ts45-ext/ext-mts/index\';main()"',
].join(' ')
);
expect(err).toBe(null);
expect(stdout).toBe('hello world\n');
});
}
test('should eval code', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -e "import * as m from './module';console.log(m.example('test'))"`
);
expect(err).toBe(null);
expect(stdout).toBe('TEST\n');
});
test('should import empty files', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -e "import './empty'"`
);
expect(err).toBe(null);
expect(stdout).toBe('');
});
test('should throw errors', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -e "import * as m from './module';console.log(m.example(123))"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch(
new RegExp(
"TS2345: Argument of type '(?:number|123)' " +
"is not assignable to parameter of type 'string'\\."
)
);
});
test('should be able to ignore diagnostic', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --ignore-diagnostics 2345 -e "import * as m from './module';console.log(m.example(123))"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch(
/TypeError: (?:(?:undefined|foo\.toUpperCase) is not a function|.*has no method \'toUpperCase\')/
);
});
test('should work with source maps', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} "throw error"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch(
[
`${join(TEST_DIR, 'throw error.ts')}:100`,
" bar() { throw new Error('this is a demo'); }",
' ^',
'Error: this is a demo',
].join('\n')
);
});
test('should work with source maps in --transpile-only mode', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --transpile-only "throw error"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch(
[
`${join(TEST_DIR, 'throw error.ts')}:100`,
" bar() { throw new Error('this is a demo'); }",
' ^',
'Error: this is a demo',
].join('\n')
);
});
test('eval should work with source maps', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -pe "import './throw error'"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch(
[
`${join(TEST_DIR, 'throw error.ts')}:100`,
" bar() { throw new Error('this is a demo'); }",
' ^',
].join('\n')
);
});
test('should support transpile only mode', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --transpile-only -pe "x"`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch('ReferenceError: x is not defined');
});
test('should throw error even in transpileOnly mode', async () => {
const { err } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --transpile-only -pe "console."`
);
if (err === null) {
throw new Error('Command was expected to fail, but it succeeded.');
}
expect(err.message).toMatch('error TS1003: Identifier expected');
});
for (const flavor of [
'--transpiler ts-node/transpilers/swc transpile-only-swc',
'--transpiler ts-node/transpilers/swc-experimental transpile-only-swc',
'--swc transpile-only-swc',
'transpile-only-swc-via-tsconfig',
'transpile-only-swc-shorthand-via-tsconfig',
]) {
test(`should support swc and third-party transpilers: ${flavor}`, async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} ${flavor}`,
{
env: {
...process.env,
NODE_OPTIONS: `${
process.env.NODE_OPTIONS || ''
} --require ${require.resolve('../../tests/spy-swc-transpiler')}`,
},
}
);
expect(err).toBe(null);
expect(stdout).toMatch(
'Hello World! swc transpiler invocation count: 1\n'
);
});
}
test.suite('should support `traceResolution` compiler option', (test) => {
test('prints traces before running code when enabled', async () => {
const { err, stdout } = await exec(
`${BIN_PATH} --compiler-options="{ \\"traceResolution\\": true }" -e "console.log('ok')"`
);
expect(err).toBeNull();
expect(stdout).toContain('======== Resolving module');
expect(stdout.endsWith('ok\n')).toBe(true);
});
test('does NOT print traces when not enabled', async () => {
const { err, stdout } = await exec(
`${BIN_PATH} -e "console.log('ok')"`
);
expect(err).toBeNull();
expect(stdout).not.toContain('======== Resolving module');
expect(stdout.endsWith('ok\n')).toBe(true);
});
});
if (semver.gte(process.version, '12.16.0')) {
test('swc transpiler supports native ESM emit', async () => {
const { err, stdout } = await exec(
`${CMD_ESM_LOADER_WITHOUT_PROJECT} ./index.ts`,
{
cwd: resolve(TEST_DIR, 'transpile-only-swc-native-esm'),
}
);
expect(err).toBe(null);
expect(stdout).toMatch('Hello file://');
});
}
test('should pipe into `ts-node` and evaluate', async () => {
const execPromise = exec(CMD_TS_NODE_WITH_PROJECT_FLAG);
execPromise.child.stdin!.end("console.log('hello')");
const { err, stdout } = await execPromise;
expect(err).toBe(null);
expect(stdout).toBe('hello\n');
});
test('should pipe into `ts-node`', async () => {
const execPromise = exec(`${CMD_TS_NODE_WITH_PROJECT_FLAG} -p`);
execPromise.child.stdin!.end('true');
const { err, stdout } = await execPromise;
expect(err).toBe(null);
expect(stdout).toBe('true\n');
});
test('should pipe into an eval script', async () => {
const execPromise = exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --transpile-only -pe "process.stdin.isTTY"`
);
execPromise.child.stdin!.end('true');
const { err, stdout } = await execPromise;
expect(err).toBe(null);
expect(stdout).toBe('undefined\n');
});
test('should support require flags', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -r ./hello-world -pe "console.log('success')"`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\nsuccess\nundefined\n');
});
test('should support require from node modules', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} -r typescript -e "console.log('success')"`
);
expect(err).toBe(null);
expect(stdout).toBe('success\n');
});
test('should use source maps with react tsx', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} "throw error react tsx.tsx"`
);
expect(err).not.toBe(null);
expect(err!.message).toMatch(
[
`${join(TEST_DIR, './throw error react tsx.tsx')}:100`,
" bar() { throw new Error('this is a demo'); }",
' ^',
'Error: this is a demo',
].join('\n')
);
});
test('should use source maps with react tsx in --transpile-only mode', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --transpile-only "throw error react tsx.tsx"`
);
expect(err).not.toBe(null);
expect(err!.message).toMatch(
[
`${join(TEST_DIR, './throw error react tsx.tsx')}:100`,
" bar() { throw new Error('this is a demo'); }",
' ^',
'Error: this is a demo',
].join('\n')
);
});
test('should allow custom typings', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} custom-types`
);
// This error comes from *node*, meaning TypeScript respected the custom types (good) but *node* could not find the non-existent module (expected)
expect(err?.message).toMatch(
/Error: Cannot find module 'does-not-exist'/
);
});
test('should preserve `ts-node` context with child process', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} child-process`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\n');
});
test('should import js before ts by default', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} import-order/compiled`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, JavaScript!\n');
});
const preferTsExtsEntrypoint = semver.gte(process.version, '12.0.0')
? 'import-order/compiled'
: 'import-order/require-compiled';
test('should import ts before js when --prefer-ts-exts flag is present', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --prefer-ts-exts ${preferTsExtsEntrypoint}`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, TypeScript!\n');
});
test('should import ts before js when TS_NODE_PREFER_TS_EXTS env is present', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} ${preferTsExtsEntrypoint}`,
{
env: { ...process.env, TS_NODE_PREFER_TS_EXTS: 'true' },
}
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, TypeScript!\n');
});
test('should ignore .d.ts files', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} import-order/importer`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, World!\n');
});
test.suite('issue #884', (test) => {
test('should compile', async (t) => {
// TODO disabled because it consistently fails on Windows on TS 2.7
if (
process.platform === 'win32' &&
semver.satisfies(ts.version, '2.7')
) {
t.log('Skipping');
return;
} else {
const { err, stdout } = await exec(
`"${BIN_PATH}" --project issue-884/tsconfig.json issue-884`
);
expect(err).toBe(null);
expect(stdout).toBe('');
}
});
});
test.suite('issue #986', (test) => {
test('should not compile', async () => {
const { err, stdout, stderr } = await exec(
`"${BIN_PATH}" --project issue-986/tsconfig.json issue-986`
);
expect(err).not.toBe(null);
expect(stderr).toMatch("Cannot find name 'TEST'"); // TypeScript error.
expect(stdout).toBe('');
});
test('should compile with `--files`', async () => {
const { err, stdout, stderr } = await exec(
`"${BIN_PATH}" --files --project issue-986/tsconfig.json issue-986`
);
expect(err).not.toBe(null);
expect(stderr).toMatch('ReferenceError: TEST is not defined'); // Runtime error.
expect(stdout).toBe('');
});
});
if (semver.gte(ts.version, '2.7.0')) {
test('should locate tsconfig relative to entry-point by default', async () => {
const { err, stdout } = await exec(`${BIN_PATH} ../a/index`, {
cwd: join(TEST_DIR, 'cwd-and-script-mode/b'),
});
expect(err).toBe(null);
expect(stdout).toMatch(/plugin-a/);
});
test('should locate tsconfig relative to entry-point via ts-node-script', async () => {
const { err, stdout } = await exec(`${BIN_SCRIPT_PATH} ../a/index`, {
cwd: join(TEST_DIR, 'cwd-and-script-mode/b'),
});
expect(err).toBe(null);
expect(stdout).toMatch(/plugin-a/);
});
test('should locate tsconfig relative to entry-point with --script-mode', async () => {
const { err, stdout } = await exec(
`${BIN_PATH} --script-mode ../a/index`,
{
cwd: join(TEST_DIR, 'cwd-and-script-mode/b'),
}
);
expect(err).toBe(null);
expect(stdout).toMatch(/plugin-a/);
});
test('should locate tsconfig relative to cwd via ts-node-cwd', async () => {
const { err, stdout } = await exec(`${BIN_CWD_PATH} ../a/index`, {
cwd: join(TEST_DIR, 'cwd-and-script-mode/b'),
});
expect(err).toBe(null);
expect(stdout).toMatch(/plugin-b/);
});
test('should locate tsconfig relative to cwd in --cwd-mode', async () => {
const { err, stdout } = await exec(
`${BIN_PATH} --cwd-mode ../a/index`,
{ cwd: join(TEST_DIR, 'cwd-and-script-mode/b') }
);
expect(err).toBe(null);
expect(stdout).toMatch(/plugin-b/);
});
test('should locate tsconfig relative to realpath, not symlink, when entrypoint is a symlink', async (t) => {
if (
lstatSync(
join(TEST_DIR, 'main-realpath/symlink/symlink.tsx')
).isSymbolicLink()
) {
const { err, stdout } = await exec(
`${BIN_PATH} main-realpath/symlink/symlink.tsx`
);
expect(err).toBe(null);
expect(stdout).toBe('');
} else {
t.log('Skipping');
return;
}
});
}
test.suite('should read ts-node options from tsconfig.json', (test) => {
const BIN_EXEC = `"${BIN_PATH}" --project tsconfig-options/tsconfig.json`;
test('should override compiler options from env', async () => {
const { err, stdout } = await exec(
`${BIN_EXEC} tsconfig-options/log-options1.js`,
{
env: {
...process.env,
TS_NODE_COMPILER_OPTIONS: '{"typeRoots": ["env-typeroots"]}',
},
}
);
expect(err).toBe(null);
const { config } = JSON.parse(stdout);
expect(config.options.typeRoots).toEqual([
join(TEST_DIR, './tsconfig-options/env-typeroots').replace(
/\\/g,
'/'
),
]);
});
test('should use options from `tsconfig.json`', async () => {
const { err, stdout } = await exec(
`${BIN_EXEC} tsconfig-options/log-options1.js`
);
expect(err).toBe(null);
const { options, config } = JSON.parse(stdout);
expect(config.options.typeRoots).toEqual([
join(TEST_DIR, './tsconfig-options/tsconfig-typeroots').replace(
/\\/g,
'/'
),
]);
expect(config.options.types).toEqual(['tsconfig-tsnode-types']);
expect(options.pretty).toBe(undefined);
expect(options.skipIgnore).toBe(false);
expect(options.transpileOnly).toBe(true);
expect(options.require).toEqual([
join(TEST_DIR, './tsconfig-options/required1.js'),
]);
});
test('should ignore empty strings in the array options', async () => {
const { err, stdout } = await exec(
`${BIN_EXEC} tsconfig-options/log-options1.js`,
{
env: {
...process.env,
TS_NODE_IGNORE: '',
},
}
);
expect(err).toBe(null);
const { options } = JSON.parse(stdout);
expect(options.ignore).toEqual([]);
});
test('should have flags override / merge with `tsconfig.json`', async () => {
const { err, stdout } = await exec(
`${BIN_EXEC} --skip-ignore --compiler-options "{\\"types\\":[\\"flags-types\\"]}" --require ./tsconfig-options/required2.js tsconfig-options/log-options2.js`
);
expect(err).toBe(null);
const { options, config } = JSON.parse(stdout);
expect(config.options.typeRoots).toEqual([
join(TEST_DIR, './tsconfig-options/tsconfig-typeroots').replace(
/\\/g,
'/'
),
]);
expect(config.options.types).toEqual(['flags-types']);
expect(options.pretty).toBe(undefined);
expect(options.skipIgnore).toBe(true);
expect(options.transpileOnly).toBe(true);
expect(options.require).toEqual([
join(TEST_DIR, './tsconfig-options/required1.js'),
'./tsconfig-options/required2.js',
]);
});
test('should have `tsconfig.json` override environment', async () => {
const { err, stdout } = await exec(
`${BIN_EXEC} tsconfig-options/log-options1.js`,
{
env: {
...process.env,
TS_NODE_PRETTY: 'true',
TS_NODE_SKIP_IGNORE: 'true',
},
}
);
expect(err).toBe(null);
const { options, config } = JSON.parse(stdout);
expect(config.options.typeRoots).toEqual([
join(TEST_DIR, './tsconfig-options/tsconfig-typeroots').replace(
/\\/g,
'/'
),
]);
expect(config.options.types).toEqual(['tsconfig-tsnode-types']);
expect(options.pretty).toBe(true);
expect(options.skipIgnore).toBe(false);
expect(options.transpileOnly).toBe(true);
expect(options.require).toEqual([
join(TEST_DIR, './tsconfig-options/required1.js'),
]);
});
if (semver.gte(ts.version, '3.2.0')) {
test('should pull ts-node options from extended `tsconfig.json`', async () => {
const { err, stdout } = await exec(
`${BIN_PATH} --show-config --project ./tsconfig-extends/tsconfig.json`
);
expect(err).toBe(null);
const config = JSON.parse(stdout);
expect(config['ts-node'].require).toEqual([
resolve(TEST_DIR, 'tsconfig-extends/other/require-hook.js'),
]);
expect(config['ts-node'].scopeDir).toBe(
resolve(TEST_DIR, 'tsconfig-extends/other/scopedir')
);
expect(config['ts-node'].preferTsExts).toBe(true);
});
}
});
test.suite(
'should use implicit @tsconfig/bases config when one is not loaded from disk',
(_test) => {
const test = _test.context(async (t) => ({
tempDir: mkdtempSync(join(tmpdir(), 'ts-node-spec')),
}));
if (
semver.gte(ts.version, '3.5.0') &&
semver.gte(process.versions.node, '14.0.0')
) {
const libAndTarget = semver.gte(process.versions.node, '16.0.0')
? 'es2021'
: 'es2020';
test('implicitly uses @tsconfig/node14 or @tsconfig/node16 compilerOptions when both TS and node versions support it', async (t) => {
// node14 and node16 configs are identical, hence the "or"
const {
context: { tempDir },
} = t;
const {
err: err1,
stdout: stdout1,
stderr: stderr1,
} = await exec(`${BIN_PATH} --showConfig`, { cwd: tempDir });
expect(err1).toBe(null);
t.like(JSON.parse(stdout1), {
compilerOptions: {
target: libAndTarget,
lib: [libAndTarget],
},
});
const {
err: err2,
stdout: stdout2,
stderr: stderr2,
} = await exec(`${BIN_PATH} -pe 10n`, { cwd: tempDir });
expect(err2).toBe(null);
expect(stdout2).toBe('10n\n');
});
} else {
test('implicitly uses @tsconfig/* lower than node14 (node12) when either TS or node versions do not support @tsconfig/node14', async ({
context: { tempDir },
}) => {
const { err, stdout, stderr } = await exec(`${BIN_PATH} -pe 10n`, {
cwd: tempDir,
});
expect(err).not.toBe(null);
expect(stderr).toMatch(
/BigInt literals are not available when targeting lower than|error TS2304: Cannot find name 'n'/
);
});
}
test('implicitly loads @types/node even when not installed within local directory', async ({
context: { tempDir },
}) => {
const { err, stdout, stderr } = await exec(
`${BIN_PATH} -pe process.env.foo`,
{
cwd: tempDir,
env: { ...process.env, foo: 'hello world' },
}
);
expect(err).toBe(null);
expect(stdout).toBe('hello world\n');
});
test('implicitly loads local @types/node', async ({
context: { tempDir },
}) => {
await xfs.copyPromise(
npath.toPortablePath(tempDir),
npath.toPortablePath(join(TEST_DIR, 'local-types-node'))
);
const { err, stdout, stderr } = await exec(
`${BIN_PATH} -pe process.env.foo`,
{
cwd: tempDir,
env: { ...process.env, foo: 'hello world' },
}
);
expect(err).not.toBe(null);
expect(stderr).toMatch(
"Property 'env' does not exist on type 'LocalNodeTypes_Process'"
);
});
}
);
if (semver.gte(ts.version, '3.2.0')) {
test.suite(
'should bundle @tsconfig/bases to be used in your own tsconfigs',
(test) => {
const macro = test.macro((nodeVersion: string) => async (t) => {
const config = require(`@tsconfig/${nodeVersion}/tsconfig.json`);
const { err, stdout, stderr } = await exec(
`${BIN_PATH} --showConfig -e 10n`,
{
cwd: join(TEST_DIR, 'tsconfig-bases', nodeVersion),
}
);
expect(err).toBe(null);
t.like(JSON.parse(stdout), {
compilerOptions: {
target: config.compilerOptions.target,
lib: config.compilerOptions.lib,
},
});
});
test(`ts-node/node10/tsconfig.json`, macro, 'node10');
test(`ts-node/node12/tsconfig.json`, macro, 'node12');
test(`ts-node/node14/tsconfig.json`, macro, 'node14');
test(`ts-node/node16/tsconfig.json`, macro, 'node16');
}
);
}
test.suite('compiler host', (test) => {
test('should execute cli', async () => {
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --compiler-host hello-world`
);
expect(err).toBe(null);
expect(stdout).toBe('Hello, world!\n');
});
});
test('should transpile files inside a node_modules directory when not ignored', async () => {
const { err, stdout, stderr } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} from-node-modules/from-node-modules`
);
if (err)
throw new Error(
`Unexpected error: ${err}\nstdout:\n${stdout}\nstderr:\n${stderr}`
);
expect(JSON.parse(stdout)).toEqual({
external: {
tsmri: { name: 'typescript-module-required-internally' },
jsmri: { name: 'javascript-module-required-internally' },
tsmii: { name: 'typescript-module-imported-internally' },
jsmii: { name: 'javascript-module-imported-internally' },
},
tsmie: { name: 'typescript-module-imported-externally' },
jsmie: { name: 'javascript-module-imported-externally' },
tsmre: { name: 'typescript-module-required-externally' },
jsmre: { name: 'javascript-module-required-externally' },
});
});
test.suite('should respect maxNodeModulesJsDepth', (test) => {
test('for unscoped modules', async () => {
const { err, stdout, stderr } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} maxnodemodulesjsdepth`
);
expect(err).not.toBe(null);
expect(stderr.replace(/\r\n/g, '\n')).toMatch(
'TSError: ⨯ Unable to compile TypeScript:\n' +
"maxnodemodulesjsdepth/other.ts(4,7): error TS2322: Type 'string' is not assignable to type 'boolean'.\n" +
'\n'
);
});
test('for @scoped modules', async () => {
const { err, stdout, stderr } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} maxnodemodulesjsdepth-scoped`
);
expect(err).not.toBe(null);
expect(stderr.replace(/\r\n/g, '\n')).toMatch(
'TSError: ⨯ Unable to compile TypeScript:\n' +
"maxnodemodulesjsdepth-scoped/other.ts(7,7): error TS2322: Type 'string' is not assignable to type 'boolean'.\n" +
'\n'
);
});
});
if (semver.gte(ts.version, '3.2.0')) {
test('--show-config should log resolved configuration', async (t) => {
function native(path: string) {
return path.replace(/\/|\\/g, pathSep);
}
function posix(path: string) {
return path.replace(/\/|\\/g, '/');
}
const { err, stdout } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --showConfig`
);
expect(err).toBe(null);
t.is(
stdout,
JSON.stringify(
{
'ts-node': {
cwd: native(`${ROOT_DIR}/tests`),
projectSearchDir: native(`${ROOT_DIR}/tests`),
project: native(`${ROOT_DIR}/tests/tsconfig.json`),
require: [],
},
compilerOptions: {
target: 'es6',
jsx: 'react',
noEmit: false,
strict: true,
typeRoots: [
posix(`${ROOT_DIR}/tests/typings`),
posix(`${ROOT_DIR}/node_modules/@types`),
],
sourceMap: true,
inlineSourceMap: false,
inlineSources: true,
declaration: false,
outDir: './.ts-node',
module: 'commonjs',
},
},
null,
2
) + '\n'
);
});
} else {
test('--show-config should log error message when used with old typescript versions', async (t) => {
const { err, stderr } = await exec(
`${CMD_TS_NODE_WITH_PROJECT_FLAG} --showConfig`
);
expect(err).not.toBe(null);
expect(stderr).toMatch('Error: --show-config requires');
});
}
test('should support compiler scope specified via tsconfig.json', async (t) => {
const { err, stderr, stdout } = await exec(
`${CMD_TS_NODE_WITHOUT_PROJECT_FLAG} --project ./scope/c/config/tsconfig.json ./scope/c/index.js`
);
expect(err).toBe(null);
expect(stdout).toBe(`value\nFailures: 0\n`);
});
});
test.suite('create', (_test) => {
const test = _test.context(async (t) => {
return {
service: t.context.tsNodeUnderTest.create({
compilerOptions: { target: 'es5' },
skipProject: true,
}),
};
});
test('should create generic compiler instances', ({
context: { service },
}) => {
const output = service.compile('const x = 10', 'test.ts');
expect(output).toMatch('var x = 10;');
});
test.suite('should get type information', (test) => {
test('given position of identifier', ({ context: { service } }) => {
expect(
service.getTypeInfo('/**jsdoc here*/const x = 10', 'test.ts', 21)
).toEqual({
comment: 'jsdoc here',