/
standalone-syntax.test.js
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/
standalone-syntax.test.js
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'use strict';
const path = require('path');
const replaceBackslashes = require('../testUtils/replaceBackslashes');
const standalone = require('../standalone');
const stringFormatter = require('../formatters/stringFormatter');
const { promises: fs } = require('fs');
const fixturesPath = replaceBackslashes(path.join(__dirname, 'fixtures'));
it('standalone with postcss-safe-parser', () => {
return standalone({
files: `${fixturesPath}/syntax_error.*`,
config: {
rules: {},
},
fix: true,
}).then((data) => {
const results = data.results;
expect(results).toHaveLength(6);
const safeParserExtensionsTest = /\.(css|pcss|postcss)$/i;
results
.filter((result) => !safeParserExtensionsTest.test(result.source))
.forEach((result) => {
expect(result.warnings).toHaveLength(1);
const error = result.warnings[0];
expect(error.line).toBe(1);
expect(error.column).toBe(1);
expect(error.rule).toBe('CssSyntaxError');
expect(error.severity).toBe('error');
});
return Promise.all(
results
.filter((result) => safeParserExtensionsTest.test(result.source))
.map((result) => {
const root = result._postcssResult.root;
expect(result.errored).toBeFalsy();
expect(result.warnings).toHaveLength(0);
expect(root.toString()).not.toBe(root.source.input.css);
return fs.writeFile(root.source.input.file, root.source.input.css);
}),
);
});
});
it('standalone with path to custom parser', () => {
const config = {
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
customSyntax: `${fixturesPath}/custom-parser`,
code: '.foo { width: 200px }\n.bar {',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(6);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with path to custom syntax', () => {
const config = {
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
customSyntax: `${fixturesPath}/custom-syntax`,
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with custom syntax as npm package name', () => {
const config = {
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
customSyntax: 'postcss-scss',
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with custom syntax as npm package', () => {
const config = {
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
customSyntax: require('postcss-scss'),
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('rejects on unknown custom syntax option', async () => {
await expect(
standalone({
customSyntax: 'unknown-module',
code: '',
config: { rules: { 'block-no-empty': 'wahoo' } },
}),
).rejects.toThrow(
'Cannot resolve custom syntax module unknown-module. Check that module unknown-module is available and spelled correctly.',
);
});
it('rejects on syntax option', async () => {
await expect(
standalone({
syntax: 'scss',
code: '',
config: { rules: { 'block-no-empty': true } },
}),
).rejects.toThrow(
'The "syntax" (--syntax) option has been removed. Install the appropriate syntax and use the "customSyntax" (--custom-syntax) option instead',
);
});
it('rejects when customSyntax and syntax are set', async () => {
const config = {
rules: {
'block-no-empty': true,
},
};
await expect(
standalone({
config,
syntax: 'less',
customSyntax: `${fixturesPath}/custom-syntax`,
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}),
).rejects.toThrow(
'The "syntax" (--syntax) option has been removed. Install the appropriate syntax and use the "customSyntax" (--custom-syntax) option instead',
);
});
describe('customSyntax set in the config', () => {
it('standalone with path to custom parser', () => {
const config = {
customSyntax: `${fixturesPath}/custom-parser`,
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
code: '.foo { width: 200px }\n.bar {',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(6);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with custom syntax as npm package name', () => {
const config = {
customSyntax: 'postcss-scss',
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with custom syntax as npm package', () => {
const config = {
customSyntax: require('postcss-scss'),
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('standalone with path to custom syntax', () => {
const config = {
customSyntax: `${fixturesPath}/custom-syntax`,
rules: {
'block-no-empty': true,
},
};
return standalone({
config,
code: '$foo: bar; // foo;\nb {}',
formatter: stringFormatter,
}).then((linted) => {
const results = linted.results;
expect(results).toHaveLength(1);
expect(results[0].warnings).toHaveLength(1);
expect(results[0].warnings[0].line).toBe(2);
expect(results[0].warnings[0].column).toBe(3);
expect(results[0].warnings[0].rule).toBe('block-no-empty');
});
});
it('rejects on unknown custom syntax option', async () => {
await expect(
standalone({
code: '',
config: {
customSyntax: 'unknown-module',
rules: { 'block-no-empty': 'wahoo' },
},
}),
).rejects.toThrow(
'Cannot resolve custom syntax module unknown-module. Check that module unknown-module is available and spelled correctly.',
);
});
});