State.js
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'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = void 0;
var fs = _interopRequireWildcard(require('graceful-fs'));
var _jestMessageUtil = require('jest-message-util');
var _InlineSnapshots = require('./InlineSnapshots');
var _utils = require('./utils');
function _getRequireWildcardCache() {
if (typeof WeakMap !== 'function') return null;
var cache = new WeakMap();
_getRequireWildcardCache = function () {
return cache;
};
return cache;
}
function _interopRequireWildcard(obj) {
if (obj && obj.__esModule) {
return obj;
}
if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
return {default: obj};
}
var cache = _getRequireWildcardCache();
if (cache && cache.has(obj)) {
return cache.get(obj);
}
var newObj = {};
var hasPropertyDescriptor =
Object.defineProperty && Object.getOwnPropertyDescriptor;
for (var key in obj) {
if (Object.prototype.hasOwnProperty.call(obj, key)) {
var desc = hasPropertyDescriptor
? Object.getOwnPropertyDescriptor(obj, key)
: null;
if (desc && (desc.get || desc.set)) {
Object.defineProperty(newObj, key, desc);
} else {
newObj[key] = obj[key];
}
}
}
newObj.default = obj;
if (cache) {
cache.set(obj, newObj);
}
return newObj;
}
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.existsSync;
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
class SnapshotState {
// @ts-expect-error
constructor(snapshotPath, options) {
_defineProperty(this, '_counters', void 0);
_defineProperty(this, '_dirty', void 0);
_defineProperty(this, '_index', void 0);
_defineProperty(this, '_updateSnapshot', void 0);
_defineProperty(this, '_snapshotData', void 0);
_defineProperty(this, '_initialData', void 0);
_defineProperty(this, '_snapshotPath', void 0);
_defineProperty(this, '_inlineSnapshots', void 0);
_defineProperty(this, '_uncheckedKeys', void 0);
_defineProperty(this, '_getBabelTraverse', void 0);
_defineProperty(this, '_getPrettier', void 0);
_defineProperty(this, 'added', void 0);
_defineProperty(this, 'expand', void 0);
_defineProperty(this, 'matched', void 0);
_defineProperty(this, 'unmatched', void 0);
_defineProperty(this, 'updated', void 0);
this._snapshotPath = snapshotPath;
const {data, dirty} = (0, _utils.getSnapshotData)(
this._snapshotPath,
options.updateSnapshot
);
this._initialData = data;
this._snapshotData = data;
this._dirty = dirty;
this._getBabelTraverse = options.getBabelTraverse;
this._getPrettier = options.getPrettier;
this._inlineSnapshots = [];
this._uncheckedKeys = new Set(Object.keys(this._snapshotData));
this._counters = new Map();
this._index = 0;
this.expand = options.expand || false;
this.added = 0;
this.matched = 0;
this.unmatched = 0;
this._updateSnapshot = options.updateSnapshot;
this.updated = 0;
}
markSnapshotsAsCheckedForTest(testName) {
this._uncheckedKeys.forEach(uncheckedKey => {
if ((0, _utils.keyToTestName)(uncheckedKey) === testName) {
this._uncheckedKeys.delete(uncheckedKey);
}
});
}
_addSnapshot(key, receivedSerialized, options) {
this._dirty = true;
if (options.isInline) {
const error = options.error || new Error();
const lines = (0, _jestMessageUtil.getStackTraceLines)(
(0, _utils.removeLinesBeforeExternalMatcherTrap)(error.stack || '')
);
const frame = (0, _jestMessageUtil.getTopFrame)(lines);
if (!frame) {
throw new Error(
"Jest: Couldn't infer stack frame for inline snapshot."
);
}
this._inlineSnapshots.push({
frame,
snapshot: receivedSerialized
});
} else {
this._snapshotData[key] = receivedSerialized;
}
}
clear() {
this._snapshotData = this._initialData;
this._inlineSnapshots = [];
this._counters = new Map();
this._index = 0;
this.added = 0;
this.matched = 0;
this.unmatched = 0;
this.updated = 0;
}
save() {
const hasExternalSnapshots = Object.keys(this._snapshotData).length;
const hasInlineSnapshots = this._inlineSnapshots.length;
const isEmpty = !hasExternalSnapshots && !hasInlineSnapshots;
const status = {
deleted: false,
saved: false
};
if ((this._dirty || this._uncheckedKeys.size) && !isEmpty) {
if (hasExternalSnapshots) {
(0, _utils.saveSnapshotFile)(this._snapshotData, this._snapshotPath);
}
if (hasInlineSnapshots) {
const prettier = this._getPrettier(); // Load lazily
const babelTraverse = this._getBabelTraverse(); // Load lazily
(0, _InlineSnapshots.saveInlineSnapshots)(
this._inlineSnapshots,
prettier,
babelTraverse
);
}
status.saved = true;
} else if (!hasExternalSnapshots && jestExistsFile(this._snapshotPath)) {
if (this._updateSnapshot === 'all') {
fs.unlinkSync(this._snapshotPath);
}
status.deleted = true;
}
return status;
}
getUncheckedCount() {
return this._uncheckedKeys.size || 0;
}
getUncheckedKeys() {
return Array.from(this._uncheckedKeys);
}
removeUncheckedKeys() {
if (this._updateSnapshot === 'all' && this._uncheckedKeys.size) {
this._dirty = true;
this._uncheckedKeys.forEach(key => delete this._snapshotData[key]);
this._uncheckedKeys.clear();
}
}
match({testName, received, key, inlineSnapshot, isInline, error}) {
this._counters.set(testName, (this._counters.get(testName) || 0) + 1);
const count = Number(this._counters.get(testName));
if (!key) {
key = (0, _utils.testNameToKey)(testName, count);
} // Do not mark the snapshot as "checked" if the snapshot is inline and
// there's an external snapshot. This way the external snapshot can be
// removed with `--updateSnapshot`.
if (!(isInline && this._snapshotData[key] !== undefined)) {
this._uncheckedKeys.delete(key);
}
const receivedSerialized = (0, _utils.addExtraLineBreaks)(
(0, _utils.serialize)(received)
);
const expected = isInline ? inlineSnapshot : this._snapshotData[key];
const pass = expected === receivedSerialized;
const hasSnapshot = expected !== undefined;
const snapshotIsPersisted = isInline || fs.existsSync(this._snapshotPath);
if (pass && !isInline) {
// Executing a snapshot file as JavaScript and writing the strings back
// when other snapshots have changed loses the proper escaping for some
// characters. Since we check every snapshot in every test, use the newly
// generated formatted string.
// Note that this is only relevant when a snapshot is added and the dirty
// flag is set.
this._snapshotData[key] = receivedSerialized;
} // These are the conditions on when to write snapshots:
// * There's no snapshot file in a non-CI environment.
// * There is a snapshot file and we decided to update the snapshot.
// * There is a snapshot file, but it doesn't have this snaphsot.
// These are the conditions on when not to write snapshots:
// * The update flag is set to 'none'.
// * There's no snapshot file or a file without this snapshot on a CI environment.
if (
(hasSnapshot && this._updateSnapshot === 'all') ||
((!hasSnapshot || !snapshotIsPersisted) &&
(this._updateSnapshot === 'new' || this._updateSnapshot === 'all'))
) {
if (this._updateSnapshot === 'all') {
if (!pass) {
if (hasSnapshot) {
this.updated++;
} else {
this.added++;
}
this._addSnapshot(key, receivedSerialized, {
error,
isInline
});
} else {
this.matched++;
}
} else {
this._addSnapshot(key, receivedSerialized, {
error,
isInline
});
this.added++;
}
return {
actual: '',
count,
expected: '',
key,
pass: true
};
} else {
if (!pass) {
this.unmatched++;
return {
actual: (0, _utils.removeExtraLineBreaks)(receivedSerialized),
count,
expected:
expected !== undefined
? (0, _utils.removeExtraLineBreaks)(expected)
: undefined,
key,
pass: false
};
} else {
this.matched++;
return {
actual: '',
count,
expected: '',
key,
pass: true
};
}
}
}
fail(testName, _received, key) {
this._counters.set(testName, (this._counters.get(testName) || 0) + 1);
const count = Number(this._counters.get(testName));
if (!key) {
key = (0, _utils.testNameToKey)(testName, count);
}
this._uncheckedKeys.delete(key);
this.unmatched++;
return key;
}
}
exports.default = SnapshotState;