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'use strict';
const common = require('../common');
const assert = require('assert');
const spawnSync = require('child_process').spawnSync;
const path = require('path');
const node = process.execPath;
// test both sets of arguments that check syntax
const syntaxArgs = [
['-c'],
['--check']
];
// test good syntax with and without shebang
[
'syntax/good_syntax.js',
'syntax/good_syntax',
'syntax/good_syntax_shebang.js',
'syntax/good_syntax_shebang',
'syntax/illegal_if_not_wrapped.js'
].forEach(function(file) {
file = path.join(common.fixturesDir, file);
// loop each possible option, `-c` or `--check`
syntaxArgs.forEach(function(args) {
const _args = args.concat(file);
const c = spawnSync(node, _args, {encoding: 'utf8'});
// no output should be produced
assert.strictEqual(c.stdout, '', 'stdout produced');
assert.strictEqual(c.stderr, '', 'stderr produced');
assert.strictEqual(c.status, 0, 'code === ' + c.status);
});
});
// test bad syntax with and without shebang
[
'syntax/bad_syntax.js',
'syntax/bad_syntax',
'syntax/bad_syntax_shebang.js',
'syntax/bad_syntax_shebang'
].forEach(function(file) {
file = path.join(common.fixturesDir, file);
// loop each possible option, `-c` or `--check`
syntaxArgs.forEach(function(args) {
const _args = args.concat(file);
const c = spawnSync(node, _args, {encoding: 'utf8'});
// no stdout should be produced
assert.strictEqual(c.stdout, '', 'stdout produced');
// stderr should include the filename
assert(c.stderr.startsWith(file), "stderr doesn't start with the filename");
// stderr should have a syntax error message
const match = c.stderr.match(/^SyntaxError: Unexpected identifier$/m);
assert(match, 'stderr incorrect');
assert.strictEqual(c.status, 1, 'code === ' + c.status);
});
});
// test file not found
[
'syntax/file_not_found.js',
'syntax/file_not_found'
].forEach(function(file) {
file = path.join(common.fixturesDir, file);
// loop each possible option, `-c` or `--check`
syntaxArgs.forEach(function(args) {
const _args = args.concat(file);
const c = spawnSync(node, _args, {encoding: 'utf8'});
// no stdout should be produced
assert.strictEqual(c.stdout, '', 'stdout produced');
// stderr should have a module not found error message
const match = c.stderr.match(/^Error: Cannot find module/m);
assert(match, 'stderr incorrect');
assert.strictEqual(c.status, 1, 'code === ' + c.status);
});
});
// should not execute code piped from stdin with --check
// loop each possible option, `-c` or `--check`
syntaxArgs.forEach(function(args) {
const stdin = 'throw new Error("should not get run");';
const c = spawnSync(node, args, {encoding: 'utf8', input: stdin});
// no stdout or stderr should be produced
assert.strictEqual(c.stdout, '', 'stdout produced');
assert.strictEqual(c.stderr, '', 'stderr produced');
assert.strictEqual(c.status, 0, 'code === ' + c.status);
});
// should throw if code piped from stdin with --check has bad syntax
// loop each possible option, `-c` or `--check`
syntaxArgs.forEach(function(args) {
const stdin = 'var foo bar;';
const c = spawnSync(node, args, {encoding: 'utf8', input: stdin});
// stderr should include '[stdin]' as the filename
assert(c.stderr.startsWith('[stdin]'), "stderr doesn't start with [stdin]");
// no stdout or stderr should be produced
assert.strictEqual(c.stdout, '', 'stdout produced');
// stderr should have a syntax error message
const match = c.stderr.match(/^SyntaxError: Unexpected identifier$/m);
assert(match, 'stderr incorrect');
assert.strictEqual(c.status, 1, 'code === ' + c.status);
});
// should throw if -c and -e flags are both passed
['-c', '--check'].forEach(function(checkFlag) {
['-e', '--eval'].forEach(function(evalFlag) {
const args = [checkFlag, evalFlag, 'foo'];
const c = spawnSync(node, args, {encoding: 'utf8'});
assert(
c.stderr.startsWith(
`${node}: either --check or --eval can be used, not both`
)
);
assert.strictEqual(c.status, 9, 'code === ' + c.status);
});
});