518 lines
13 KiB
JavaScript
518 lines
13 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var _fs = _interopRequireDefault(require('fs'));
|
||
|
|
|
||
|
|
var _jestDiff = _interopRequireDefault(require('jest-diff'));
|
||
|
|
|
||
|
|
var _jestMatcherUtils = require('jest-matcher-utils');
|
||
|
|
|
||
|
|
var _snapshot_resolver = require('./snapshot_resolver');
|
||
|
|
|
||
|
|
var _State = _interopRequireDefault(require('./State'));
|
||
|
|
|
||
|
|
var _plugins = require('./plugins');
|
||
|
|
|
||
|
|
var utils = _interopRequireWildcard(require('./utils'));
|
||
|
|
|
||
|
|
function _interopRequireWildcard(obj) {
|
||
|
|
if (obj && obj.__esModule) {
|
||
|
|
return obj;
|
||
|
|
} else {
|
||
|
|
var newObj = {};
|
||
|
|
if (obj != null) {
|
||
|
|
for (var key in obj) {
|
||
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
||
|
|
var desc =
|
||
|
|
Object.defineProperty && Object.getOwnPropertyDescriptor
|
||
|
|
? Object.getOwnPropertyDescriptor(obj, key)
|
||
|
|
: {};
|
||
|
|
if (desc.get || desc.set) {
|
||
|
|
Object.defineProperty(newObj, key, desc);
|
||
|
|
} else {
|
||
|
|
newObj[key] = obj[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
newObj.default = obj;
|
||
|
|
return newObj;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function _interopRequireDefault(obj) {
|
||
|
|
return obj && obj.__esModule ? obj : {default: obj};
|
||
|
|
}
|
||
|
|
|
||
|
|
var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
|
||
|
|
var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
|
||
|
|
|
||
|
|
var jestExistsFile =
|
||
|
|
global[Symbol.for('jest-native-exists-file')] || _fs.default.existsSync;
|
||
|
|
|
||
|
|
const DID_NOT_THROW = 'Received function did not throw'; // same as toThrow
|
||
|
|
|
||
|
|
const NOT_SNAPSHOT_MATCHERS = `.${(0, _jestMatcherUtils.BOLD_WEIGHT)(
|
||
|
|
'not'
|
||
|
|
)} cannot be used with snapshot matchers`;
|
||
|
|
const HINT_ARG = (0, _jestMatcherUtils.BOLD_WEIGHT)('hint');
|
||
|
|
const INLINE_SNAPSHOT_ARG = 'snapshot';
|
||
|
|
const PROPERTY_MATCHERS_ARG = 'properties';
|
||
|
|
const INDENTATION_REGEX = /^([^\S\n]*)\S/m; // Display name in report when matcher fails same as in snapshot file,
|
||
|
|
// but with optional hint argument in bold weight.
|
||
|
|
|
||
|
|
const printName = (concatenatedBlockNames = '', hint = '', count) => {
|
||
|
|
const hasNames = concatenatedBlockNames.length !== 0;
|
||
|
|
const hasHint = hint.length !== 0;
|
||
|
|
return (
|
||
|
|
'`' +
|
||
|
|
(hasNames ? utils.escapeBacktickString(concatenatedBlockNames) : '') +
|
||
|
|
(hasNames && hasHint ? ': ' : '') +
|
||
|
|
(hasHint
|
||
|
|
? (0, _jestMatcherUtils.BOLD_WEIGHT)(utils.escapeBacktickString(hint))
|
||
|
|
: '') +
|
||
|
|
' ' +
|
||
|
|
count +
|
||
|
|
'`'
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
function stripAddedIndentation(inlineSnapshot) {
|
||
|
|
// Find indentation if exists.
|
||
|
|
const match = inlineSnapshot.match(INDENTATION_REGEX);
|
||
|
|
|
||
|
|
if (!match || !match[1]) {
|
||
|
|
// No indentation.
|
||
|
|
return inlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
const indentation = match[1];
|
||
|
|
const lines = inlineSnapshot.split('\n');
|
||
|
|
|
||
|
|
if (lines.length <= 2) {
|
||
|
|
// Must be at least 3 lines.
|
||
|
|
return inlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (lines[0].trim() !== '' || lines[lines.length - 1].trim() !== '') {
|
||
|
|
// If not blank first and last lines, abort.
|
||
|
|
return inlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (let i = 1; i < lines.length - 1; i++) {
|
||
|
|
if (lines[i] !== '') {
|
||
|
|
if (lines[i].indexOf(indentation) !== 0) {
|
||
|
|
// All lines except first and last should either be blank or have the same
|
||
|
|
// indent as the first line (or more). If this isn't the case we don't
|
||
|
|
// want to touch the snapshot at all.
|
||
|
|
return inlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
lines[i] = lines[i].substr(indentation.length);
|
||
|
|
}
|
||
|
|
} // Last line is a special case because it won't have the same indent as others
|
||
|
|
// but may still have been given some indent to line up.
|
||
|
|
|
||
|
|
lines[lines.length - 1] = ''; // Return inline snapshot, now at indent 0.
|
||
|
|
|
||
|
|
inlineSnapshot = lines.join('\n');
|
||
|
|
return inlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
const fileExists = (filePath, hasteFS) =>
|
||
|
|
hasteFS.exists(filePath) || jestExistsFile(filePath);
|
||
|
|
|
||
|
|
const cleanup = (hasteFS, update, snapshotResolver) => {
|
||
|
|
const pattern = '\\.' + _snapshot_resolver.EXTENSION + '$';
|
||
|
|
const files = hasteFS.matchFiles(pattern);
|
||
|
|
const filesRemoved = files.reduce((acc, snapshotFile) => {
|
||
|
|
if (!fileExists(snapshotResolver.resolveTestPath(snapshotFile), hasteFS)) {
|
||
|
|
if (update === 'all') {
|
||
|
|
_fs.default.unlinkSync(snapshotFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
return acc + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return acc;
|
||
|
|
}, 0);
|
||
|
|
return {
|
||
|
|
filesRemoved
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
const toMatchSnapshot = function toMatchSnapshot(
|
||
|
|
received,
|
||
|
|
propertyMatchers,
|
||
|
|
hint
|
||
|
|
) {
|
||
|
|
const matcherName = 'toMatchSnapshot';
|
||
|
|
let expectedArgument = '';
|
||
|
|
let secondArgument = '';
|
||
|
|
|
||
|
|
if (typeof propertyMatchers === 'object' && propertyMatchers !== null) {
|
||
|
|
expectedArgument = PROPERTY_MATCHERS_ARG;
|
||
|
|
|
||
|
|
if (typeof hint === 'string' && hint.length !== 0) {
|
||
|
|
secondArgument = HINT_ARG;
|
||
|
|
}
|
||
|
|
} else if (
|
||
|
|
typeof propertyMatchers === 'string' &&
|
||
|
|
propertyMatchers.length !== 0
|
||
|
|
) {
|
||
|
|
expectedArgument = HINT_ARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
const options = {
|
||
|
|
isNot: this.isNot,
|
||
|
|
promise: this.promise,
|
||
|
|
secondArgument
|
||
|
|
};
|
||
|
|
|
||
|
|
if (arguments.length === 3 && !propertyMatchers) {
|
||
|
|
throw new Error(
|
||
|
|
'Property matchers must be an object.\n\nTo provide a snapshot test name without property matchers, use: toMatchSnapshot("name")'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return _toMatchSnapshot({
|
||
|
|
context: this,
|
||
|
|
expectedArgument,
|
||
|
|
hint,
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
propertyMatchers,
|
||
|
|
received
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
const toMatchInlineSnapshot = function toMatchInlineSnapshot(
|
||
|
|
received,
|
||
|
|
propertyMatchersOrInlineSnapshot,
|
||
|
|
inlineSnapshot
|
||
|
|
) {
|
||
|
|
const matcherName = 'toMatchInlineSnapshot';
|
||
|
|
let expectedArgument = '';
|
||
|
|
let secondArgument = '';
|
||
|
|
|
||
|
|
if (typeof propertyMatchersOrInlineSnapshot === 'string') {
|
||
|
|
expectedArgument = INLINE_SNAPSHOT_ARG;
|
||
|
|
} else if (
|
||
|
|
typeof propertyMatchersOrInlineSnapshot === 'object' &&
|
||
|
|
propertyMatchersOrInlineSnapshot !== null
|
||
|
|
) {
|
||
|
|
expectedArgument = PROPERTY_MATCHERS_ARG;
|
||
|
|
|
||
|
|
if (typeof inlineSnapshot === 'string') {
|
||
|
|
secondArgument = INLINE_SNAPSHOT_ARG;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const options = {
|
||
|
|
isNot: this.isNot,
|
||
|
|
promise: this.promise,
|
||
|
|
secondArgument
|
||
|
|
};
|
||
|
|
let propertyMatchers;
|
||
|
|
|
||
|
|
if (typeof propertyMatchersOrInlineSnapshot === 'string') {
|
||
|
|
inlineSnapshot = propertyMatchersOrInlineSnapshot;
|
||
|
|
} else {
|
||
|
|
propertyMatchers = propertyMatchersOrInlineSnapshot;
|
||
|
|
}
|
||
|
|
|
||
|
|
return _toMatchSnapshot({
|
||
|
|
context: this,
|
||
|
|
expectedArgument,
|
||
|
|
inlineSnapshot: stripAddedIndentation(inlineSnapshot || ''),
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
propertyMatchers,
|
||
|
|
received
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
const _toMatchSnapshot = ({
|
||
|
|
context,
|
||
|
|
expectedArgument,
|
||
|
|
hint,
|
||
|
|
inlineSnapshot,
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
propertyMatchers,
|
||
|
|
received
|
||
|
|
}) => {
|
||
|
|
context.dontThrow && context.dontThrow();
|
||
|
|
hint = typeof propertyMatchers === 'string' ? propertyMatchers : hint;
|
||
|
|
const currentTestName = context.currentTestName,
|
||
|
|
isNot = context.isNot,
|
||
|
|
snapshotState = context.snapshotState;
|
||
|
|
|
||
|
|
if (isNot) {
|
||
|
|
throw new Error(
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) +
|
||
|
|
'\n\n' +
|
||
|
|
NOT_SNAPSHOT_MATCHERS
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!snapshotState) {
|
||
|
|
throw new Error(
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) + '\n\nsnapshot state must be initialized'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
const fullTestName =
|
||
|
|
currentTestName && hint
|
||
|
|
? `${currentTestName}: ${hint}`
|
||
|
|
: currentTestName || ''; // future BREAKING change: || hint
|
||
|
|
|
||
|
|
if (typeof propertyMatchers === 'object') {
|
||
|
|
if (propertyMatchers === null) {
|
||
|
|
throw new Error(`Property matchers must be an object.`);
|
||
|
|
}
|
||
|
|
|
||
|
|
const propertyPass = context.equals(received, propertyMatchers, [
|
||
|
|
context.utils.iterableEquality,
|
||
|
|
context.utils.subsetEquality
|
||
|
|
]);
|
||
|
|
|
||
|
|
if (!propertyPass) {
|
||
|
|
const key = snapshotState.fail(fullTestName, received);
|
||
|
|
const matched = /(\d+)$/.exec(key);
|
||
|
|
const count = matched === null ? 1 : Number(matched[1]);
|
||
|
|
|
||
|
|
const report = () =>
|
||
|
|
`Snapshot name: ${printName(currentTestName, hint, count)}\n` +
|
||
|
|
'\n' +
|
||
|
|
`Expected properties: ${context.utils.printExpected(
|
||
|
|
propertyMatchers
|
||
|
|
)}\n` +
|
||
|
|
`Received value: ${context.utils.printReceived(received)}`;
|
||
|
|
|
||
|
|
return {
|
||
|
|
message: () =>
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) +
|
||
|
|
'\n\n' +
|
||
|
|
report(),
|
||
|
|
name: matcherName,
|
||
|
|
pass: false,
|
||
|
|
report
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
received = utils.deepMerge(received, propertyMatchers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const result = snapshotState.match({
|
||
|
|
error: context.error,
|
||
|
|
inlineSnapshot,
|
||
|
|
received,
|
||
|
|
testName: fullTestName
|
||
|
|
});
|
||
|
|
const count = result.count,
|
||
|
|
pass = result.pass;
|
||
|
|
let actual = result.actual,
|
||
|
|
expected = result.expected;
|
||
|
|
let report;
|
||
|
|
|
||
|
|
if (pass) {
|
||
|
|
return {
|
||
|
|
message: () => '',
|
||
|
|
pass: true
|
||
|
|
};
|
||
|
|
} else if (!expected) {
|
||
|
|
report = () =>
|
||
|
|
`New snapshot was ${(0, _jestMatcherUtils.RECEIVED_COLOR)(
|
||
|
|
'not written'
|
||
|
|
)}. The update flag ` +
|
||
|
|
`must be explicitly passed to write a new snapshot.\n\n` +
|
||
|
|
`This is likely because this test is run in a continuous integration ` +
|
||
|
|
`(CI) environment in which snapshots are not written by default.\n\n` +
|
||
|
|
`${(0, _jestMatcherUtils.RECEIVED_COLOR)('Received value')} ` +
|
||
|
|
`${actual}`;
|
||
|
|
} else {
|
||
|
|
expected = (expected || '').trim();
|
||
|
|
actual = (actual || '').trim();
|
||
|
|
const diffMessage = (0, _jestDiff.default)(expected, actual, {
|
||
|
|
aAnnotation: 'Snapshot',
|
||
|
|
bAnnotation: 'Received',
|
||
|
|
expand: snapshotState.expand
|
||
|
|
});
|
||
|
|
|
||
|
|
report = () =>
|
||
|
|
`Snapshot name: ${printName(currentTestName, hint, count)}\n\n` +
|
||
|
|
(diffMessage ||
|
||
|
|
(0, _jestMatcherUtils.EXPECTED_COLOR)('- ' + (expected || '')) +
|
||
|
|
'\n' +
|
||
|
|
(0, _jestMatcherUtils.RECEIVED_COLOR)('+ ' + actual));
|
||
|
|
} // Passing the actual and expected objects so that a custom reporter
|
||
|
|
// could access them, for example in order to display a custom visual diff,
|
||
|
|
// or create a different error message
|
||
|
|
|
||
|
|
return {
|
||
|
|
actual,
|
||
|
|
expected,
|
||
|
|
message: () =>
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) +
|
||
|
|
'\n\n' +
|
||
|
|
report(),
|
||
|
|
name: matcherName,
|
||
|
|
pass: false,
|
||
|
|
report
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
const toThrowErrorMatchingSnapshot = function toThrowErrorMatchingSnapshot(
|
||
|
|
received,
|
||
|
|
hint, // because error TS1016 for hint?: string
|
||
|
|
fromPromise
|
||
|
|
) {
|
||
|
|
const matcherName = 'toThrowErrorMatchingSnapshot';
|
||
|
|
const expectedArgument =
|
||
|
|
typeof hint === 'string' && hint.length !== 0 ? HINT_ARG : '';
|
||
|
|
const options = {
|
||
|
|
isNot: this.isNot,
|
||
|
|
promise: this.promise,
|
||
|
|
secondArgument: ''
|
||
|
|
};
|
||
|
|
return _toThrowErrorMatchingSnapshot(
|
||
|
|
{
|
||
|
|
context: this,
|
||
|
|
expectedArgument,
|
||
|
|
hint,
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
received
|
||
|
|
},
|
||
|
|
fromPromise
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
const toThrowErrorMatchingInlineSnapshot = function toThrowErrorMatchingInlineSnapshot(
|
||
|
|
received,
|
||
|
|
inlineSnapshot,
|
||
|
|
fromPromise
|
||
|
|
) {
|
||
|
|
const matcherName = 'toThrowErrorMatchingInlineSnapshot';
|
||
|
|
const expectedArgument =
|
||
|
|
typeof inlineSnapshot === 'string' ? INLINE_SNAPSHOT_ARG : '';
|
||
|
|
const options = {
|
||
|
|
isNot: this.isNot,
|
||
|
|
promise: this.promise,
|
||
|
|
secondArgument: ''
|
||
|
|
};
|
||
|
|
return _toThrowErrorMatchingSnapshot(
|
||
|
|
{
|
||
|
|
context: this,
|
||
|
|
expectedArgument,
|
||
|
|
inlineSnapshot: inlineSnapshot || '',
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
received
|
||
|
|
},
|
||
|
|
fromPromise
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
const _toThrowErrorMatchingSnapshot = (
|
||
|
|
{
|
||
|
|
context,
|
||
|
|
expectedArgument,
|
||
|
|
inlineSnapshot,
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
received,
|
||
|
|
hint
|
||
|
|
},
|
||
|
|
fromPromise
|
||
|
|
) => {
|
||
|
|
context.dontThrow && context.dontThrow();
|
||
|
|
const isNot = context.isNot;
|
||
|
|
|
||
|
|
if (isNot) {
|
||
|
|
throw new Error(
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) +
|
||
|
|
'\n\n' +
|
||
|
|
NOT_SNAPSHOT_MATCHERS
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
let error;
|
||
|
|
|
||
|
|
if (fromPromise) {
|
||
|
|
error = received;
|
||
|
|
} else {
|
||
|
|
try {
|
||
|
|
received();
|
||
|
|
} catch (e) {
|
||
|
|
error = e;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (error === undefined) {
|
||
|
|
throw new Error(
|
||
|
|
(0, _jestMatcherUtils.matcherHint)(
|
||
|
|
matcherName,
|
||
|
|
undefined,
|
||
|
|
expectedArgument,
|
||
|
|
options
|
||
|
|
) +
|
||
|
|
'\n\n' +
|
||
|
|
DID_NOT_THROW
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return _toMatchSnapshot({
|
||
|
|
context,
|
||
|
|
expectedArgument,
|
||
|
|
hint,
|
||
|
|
inlineSnapshot,
|
||
|
|
matcherName,
|
||
|
|
options,
|
||
|
|
received: error.message
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
const JestSnapshot = {
|
||
|
|
EXTENSION: _snapshot_resolver.EXTENSION,
|
||
|
|
SnapshotState: _State.default,
|
||
|
|
addSerializer: _plugins.addSerializer,
|
||
|
|
buildSnapshotResolver: _snapshot_resolver.buildSnapshotResolver,
|
||
|
|
cleanup,
|
||
|
|
getSerializers: _plugins.getSerializers,
|
||
|
|
isSnapshotPath: _snapshot_resolver.isSnapshotPath,
|
||
|
|
toMatchInlineSnapshot,
|
||
|
|
toMatchSnapshot,
|
||
|
|
toThrowErrorMatchingInlineSnapshot,
|
||
|
|
toThrowErrorMatchingSnapshot,
|
||
|
|
utils
|
||
|
|
};
|
||
|
|
/* eslint-disable-next-line no-redeclare */
|
||
|
|
|
||
|
|
module.exports = JestSnapshot;
|