/
node-flags.spec.js
135 lines (120 loc) · 4.73 KB
/
node-flags.spec.js
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'use strict';
const nodeEnvFlags = require('node-environment-flags');
const {
isNodeFlag,
impliesNoTimeouts,
unparseNodeFlags
} = require('../../../lib/cli/node-flags');
describe('node-flags', function() {
describe('isNodeFlag()', function() {
describe('for all allowed node environment flags', function() {
// NOTE: this is not stubbing nodeEnvFlags in any way, so relies on
// the userland polyfill to be correct.
nodeEnvFlags.forEach(envFlag => {
it(`${envFlag} should return true`, function() {
expect(isNodeFlag(envFlag), 'to be true');
});
});
});
describe('when expecting leading dashes', function() {
it('should require leading dashes', function() {
expect(isNodeFlag('throw-deprecation', false), 'to be false');
expect(isNodeFlag('--throw-deprecation', false), 'to be true');
});
it('should return false for --require/-r', function() {
expect(isNodeFlag('--require', false), 'to be false');
expect(isNodeFlag('-r', false), 'to be false');
});
});
describe('special cases', function() {
it('should return true for flags starting with "preserve-symlinks"', function() {
expect(isNodeFlag('preserve-symlinks'), 'to be true');
expect(isNodeFlag('preserve-symlinks-main'), 'to be true');
// XXX this is not true in some newer versions of Node.js. figure out where
// this changed.
expect(isNodeFlag('preserve_symlinks'), 'to be false');
});
it('should return true for flags starting with "harmony-" or "harmony_"', function() {
expect(isNodeFlag('harmony-literally-anything'), 'to be true');
expect(isNodeFlag('harmony_literally_underscores'), 'to be true');
expect(isNodeFlag('harmonynope'), 'to be false');
});
it('should return true for flags starting with "trace-" or "trace_"', function() {
expect(isNodeFlag('trace-literally-anything'), 'to be true');
expect(isNodeFlag('trace_literally_underscores'), 'to be true');
expect(isNodeFlag('tracenope'), 'to be false');
});
it('should return true for "harmony" itself', function() {
expect(isNodeFlag('harmony'), 'to be true');
});
it('should return true for "gc-global"', function() {
expect(isNodeFlag('gc-global'), 'to be true');
expect(isNodeFlag('gc_global'), 'to be true');
expect(isNodeFlag('gc'), 'to be true');
});
it('should return true for "es-staging"', function() {
expect(isNodeFlag('es-staging'), 'to be true');
expect(isNodeFlag('es_staging'), 'to be true');
});
it('should return true for "use-strict"', function() {
expect(isNodeFlag('use-strict'), 'to be true');
expect(isNodeFlag('use_strict'), 'to be true');
});
it('should return true for flags starting with "--v8-"', function() {
expect(isNodeFlag('v8-'), 'to be false');
expect(isNodeFlag('v8-options'), 'to be false');
expect(isNodeFlag('v8_options'), 'to be false');
expect(isNodeFlag('v8-anything-else'), 'to be true');
expect(isNodeFlag('v8_anything_else'), 'to be true');
});
});
});
describe('impliesNoTimeouts()', function() {
it('should return true for debug/inspect flags', function() {
expect(impliesNoTimeouts('debug'), 'to be true');
expect(impliesNoTimeouts('inspect'), 'to be true');
expect(impliesNoTimeouts('debug-brk'), 'to be true');
expect(impliesNoTimeouts('inspect-brk'), 'to be true');
});
});
describe('unparseNodeFlags()', function() {
it('should handle single v8 flags', function() {
expect(unparseNodeFlags({'v8-numeric': 100}), 'to equal', [
'--v8-numeric=100'
]);
expect(unparseNodeFlags({'v8-boolean': true}), 'to equal', [
'--v8-boolean'
]);
});
it('should handle multiple v8 flags', function() {
expect(
unparseNodeFlags({'v8-numeric-one': 1, 'v8-numeric-two': 2}),
'to equal',
['--v8-numeric-one=1', '--v8-numeric-two=2']
);
expect(
unparseNodeFlags({'v8-boolean-one': true, 'v8-boolean-two': true}),
'to equal',
['--v8-boolean-one', '--v8-boolean-two']
);
expect(
unparseNodeFlags({
'v8-boolean-one': true,
'v8-numeric-one': 1,
'v8-boolean-two': true
}),
'to equal',
['--v8-boolean-one', '--v8-numeric-one=1', '--v8-boolean-two']
);
expect(
unparseNodeFlags({
'v8-numeric-one': 1,
'v8-boolean-one': true,
'v8-numeric-two': 2
}),
'to equal',
['--v8-numeric-one=1', '--v8-boolean-one', '--v8-numeric-two=2']
);
});
});
});