challenge-algorithms-v2.0-D.../node_modules/expect/build/spyMatchers.js

1251 lines
40 KiB
JavaScript

'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.default = void 0;
var _expectUtils = require('@jest/expect-utils');
var _jestGetType = require('jest-get-type');
var _jestMatcherUtils = require('jest-matcher-utils');
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
// The optional property of matcher context is true if undefined.
const isExpand = expand => expand !== false;
const PRINT_LIMIT = 3;
const NO_ARGUMENTS = 'called with 0 arguments';
const printExpectedArgs = expected =>
expected.length === 0
? NO_ARGUMENTS
: expected.map(arg => (0, _jestMatcherUtils.printExpected)(arg)).join(', ');
const printReceivedArgs = (received, expected) =>
received.length === 0
? NO_ARGUMENTS
: received
.map((arg, i) =>
Array.isArray(expected) &&
i < expected.length &&
isEqualValue(expected[i], arg)
? printCommon(arg)
: (0, _jestMatcherUtils.printReceived)(arg)
)
.join(', ');
const printCommon = val =>
(0, _jestMatcherUtils.DIM_COLOR)((0, _jestMatcherUtils.stringify)(val));
const isEqualValue = (expected, received) =>
(0, _expectUtils.equals)(expected, received, [_expectUtils.iterableEquality]);
const isEqualCall = (expected, received) =>
received.length === expected.length && isEqualValue(expected, received);
const isEqualReturn = (expected, result) =>
result.type === 'return' && isEqualValue(expected, result.value);
const countReturns = results =>
results.reduce((n, result) => (result.type === 'return' ? n + 1 : n), 0);
const printNumberOfReturns = (countReturns, countCalls) =>
`\nNumber of returns: ${(0, _jestMatcherUtils.printReceived)(countReturns)}${
countCalls !== countReturns
? `\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
countCalls
)}`
: ''
}`;
// Given a label, return a function which given a string,
// right-aligns it preceding the colon in the label.
const getRightAlignedPrinter = label => {
// Assume that the label contains a colon.
const index = label.indexOf(':');
const suffix = label.slice(index);
return (string, isExpectedCall) =>
(isExpectedCall
? `->${' '.repeat(Math.max(0, index - 2 - string.length))}`
: ' '.repeat(Math.max(index - string.length))) +
string +
suffix;
};
const printReceivedCallsNegative = (
expected,
indexedCalls,
isOnlyCall,
iExpectedCall
) => {
if (indexedCalls.length === 0) {
return '';
}
const label = 'Received: ';
if (isOnlyCall) {
return `${label + printReceivedArgs(indexedCalls[0], expected)}\n`;
}
const printAligned = getRightAlignedPrinter(label);
return `Received\n${indexedCalls.reduce(
(printed, [i, args]) =>
`${
printed +
printAligned(String(i + 1), i === iExpectedCall) +
printReceivedArgs(args, expected)
}\n`,
''
)}`;
};
const printExpectedReceivedCallsPositive = (
expected,
indexedCalls,
expand,
isOnlyCall,
iExpectedCall
) => {
const expectedLine = `Expected: ${printExpectedArgs(expected)}\n`;
if (indexedCalls.length === 0) {
return expectedLine;
}
const label = 'Received: ';
if (isOnlyCall && (iExpectedCall === 0 || iExpectedCall === undefined)) {
const received = indexedCalls[0][1];
if (isLineDiffableCall(expected, received)) {
// Display diff without indentation.
const lines = [
(0, _jestMatcherUtils.EXPECTED_COLOR)('- Expected'),
(0, _jestMatcherUtils.RECEIVED_COLOR)('+ Received'),
''
];
const length = Math.max(expected.length, received.length);
for (let i = 0; i < length; i += 1) {
if (i < expected.length && i < received.length) {
if (isEqualValue(expected[i], received[i])) {
lines.push(` ${printCommon(received[i])},`);
continue;
}
if (isLineDiffableArg(expected[i], received[i])) {
const difference = (0, _jestMatcherUtils.diff)(
expected[i],
received[i],
{
expand
}
);
if (
typeof difference === 'string' &&
difference.includes('- Expected') &&
difference.includes('+ Received')
) {
// Omit annotation in case multiple args have diff.
lines.push(`${difference.split('\n').slice(3).join('\n')},`);
continue;
}
}
}
if (i < expected.length) {
lines.push(
`${(0, _jestMatcherUtils.EXPECTED_COLOR)(
`- ${(0, _jestMatcherUtils.stringify)(expected[i])}`
)},`
);
}
if (i < received.length) {
lines.push(
`${(0, _jestMatcherUtils.RECEIVED_COLOR)(
`+ ${(0, _jestMatcherUtils.stringify)(received[i])}`
)},`
);
}
}
return `${lines.join('\n')}\n`;
}
return `${expectedLine + label + printReceivedArgs(received, expected)}\n`;
}
const printAligned = getRightAlignedPrinter(label);
return (
// eslint-disable-next-line prefer-template
expectedLine +
'Received\n' +
indexedCalls.reduce((printed, [i, received]) => {
const aligned = printAligned(String(i + 1), i === iExpectedCall);
return `${
printed +
((i === iExpectedCall || iExpectedCall === undefined) &&
isLineDiffableCall(expected, received)
? aligned.replace(': ', '\n') +
printDiffCall(expected, received, expand)
: aligned + printReceivedArgs(received, expected))
}\n`;
}, '')
);
};
const indentation = 'Received'.replace(/\w/g, ' ');
const printDiffCall = (expected, received, expand) =>
received
.map((arg, i) => {
if (i < expected.length) {
if (isEqualValue(expected[i], arg)) {
return `${indentation} ${printCommon(arg)},`;
}
if (isLineDiffableArg(expected[i], arg)) {
const difference = (0, _jestMatcherUtils.diff)(expected[i], arg, {
expand
});
if (
typeof difference === 'string' &&
difference.includes('- Expected') &&
difference.includes('+ Received')
) {
// Display diff with indentation.
// Omit annotation in case multiple args have diff.
return `${difference
.split('\n')
.slice(3)
.map(line => indentation + line)
.join('\n')},`;
}
}
}
// Display + only if received arg has no corresponding expected arg.
return `${
indentation +
(i < expected.length
? ` ${(0, _jestMatcherUtils.printReceived)(arg)}`
: (0, _jestMatcherUtils.RECEIVED_COLOR)(
`+ ${(0, _jestMatcherUtils.stringify)(arg)}`
))
},`;
})
.join('\n');
const isLineDiffableCall = (expected, received) =>
expected.some(
(arg, i) => i < received.length && isLineDiffableArg(arg, received[i])
);
// Almost redundant with function in jest-matcher-utils,
// except no line diff for any strings.
const isLineDiffableArg = (expected, received) => {
const expectedType = (0, _jestGetType.getType)(expected);
const receivedType = (0, _jestGetType.getType)(received);
if (expectedType !== receivedType) {
return false;
}
if ((0, _jestGetType.isPrimitive)(expected)) {
return false;
}
if (
expectedType === 'date' ||
expectedType === 'function' ||
expectedType === 'regexp'
) {
return false;
}
if (expected instanceof Error && received instanceof Error) {
return false;
}
if (
expectedType === 'object' &&
typeof expected.asymmetricMatch === 'function'
) {
return false;
}
if (
receivedType === 'object' &&
typeof received.asymmetricMatch === 'function'
) {
return false;
}
return true;
};
const printResult = (result, expected) =>
result.type === 'throw'
? 'function call threw an error'
: result.type === 'incomplete'
? 'function call has not returned yet'
: isEqualValue(expected, result.value)
? printCommon(result.value)
: (0, _jestMatcherUtils.printReceived)(result.value);
// Return either empty string or one line per indexed result,
// so additional empty line can separate from `Number of returns` which follows.
const printReceivedResults = (
label,
expected,
indexedResults,
isOnlyCall,
iExpectedCall
) => {
if (indexedResults.length === 0) {
return '';
}
if (isOnlyCall && (iExpectedCall === 0 || iExpectedCall === undefined)) {
return `${label + printResult(indexedResults[0][1], expected)}\n`;
}
const printAligned = getRightAlignedPrinter(label);
return (
// eslint-disable-next-line prefer-template
label.replace(':', '').trim() +
'\n' +
indexedResults.reduce(
(printed, [i, result]) =>
`${
printed +
printAligned(String(i + 1), i === iExpectedCall) +
printResult(result, expected)
}\n`,
''
)
);
};
const createToBeCalledMatcher = matcherName =>
function (received, expected) {
const expectedArgument = '';
const options = {
isNot: this.isNot,
promise: this.promise
};
(0, _jestMatcherUtils.ensureNoExpected)(expected, matcherName, options);
ensureMockOrSpy(received, matcherName, expectedArgument, options);
const receivedIsSpy = isSpy(received);
const receivedName = receivedIsSpy ? 'spy' : received.getMockName();
const count = receivedIsSpy
? received.calls.count()
: received.mock.calls.length;
const calls = receivedIsSpy
? received.calls.all().map(x => x.args)
: received.mock.calls;
const pass = count > 0;
const message = pass
? () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of calls: ${(0, _jestMatcherUtils.printExpected)(
0
)}\n` +
`Received number of calls: ${(0, _jestMatcherUtils.printReceived)(
count
)}\n\n` +
calls
.reduce((lines, args, i) => {
if (lines.length < PRINT_LIMIT) {
lines.push(`${i + 1}: ${printReceivedArgs(args)}`);
}
return lines;
}, [])
.join('\n')
: () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of calls: >= ${(0, _jestMatcherUtils.printExpected)(
1
)}\n` +
`Received number of calls: ${(0, _jestMatcherUtils.printReceived)(
count
)}`;
return {
message,
pass
};
};
const createToReturnMatcher = matcherName =>
function (received, expected) {
const expectedArgument = '';
const options = {
isNot: this.isNot,
promise: this.promise
};
(0, _jestMatcherUtils.ensureNoExpected)(expected, matcherName, options);
ensureMock(received, matcherName, expectedArgument, options);
const receivedName = received.getMockName();
// Count return values that correspond only to calls that returned
const count = received.mock.results.reduce(
(n, result) => (result.type === 'return' ? n + 1 : n),
0
);
const pass = count > 0;
const message = pass
? () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of returns: ${(0, _jestMatcherUtils.printExpected)(
0
)}\n` +
`Received number of returns: ${(0, _jestMatcherUtils.printReceived)(
count
)}\n\n` +
received.mock.results
.reduce((lines, result, i) => {
if (result.type === 'return' && lines.length < PRINT_LIMIT) {
lines.push(
`${i + 1}: ${(0, _jestMatcherUtils.printReceived)(
result.value
)}`
);
}
return lines;
}, [])
.join('\n') +
(received.mock.calls.length !== count
? `\n\nReceived number of calls: ${(0,
_jestMatcherUtils.printReceived)(received.mock.calls.length)}`
: '')
: () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of returns: >= ${(0,
_jestMatcherUtils.printExpected)(1)}\n` +
`Received number of returns: ${(0,
_jestMatcherUtils.printReceived)(count)}` +
(received.mock.calls.length !== count
? `\nReceived number of calls: ${(0,
_jestMatcherUtils.printReceived)(received.mock.calls.length)}`
: '');
return {
message,
pass
};
};
const createToBeCalledTimesMatcher = matcherName =>
function (received, expected) {
const expectedArgument = 'expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
(0, _jestMatcherUtils.ensureExpectedIsNonNegativeInteger)(
expected,
matcherName,
options
);
ensureMockOrSpy(received, matcherName, expectedArgument, options);
const receivedIsSpy = isSpy(received);
const receivedName = receivedIsSpy ? 'spy' : received.getMockName();
const count = receivedIsSpy
? received.calls.count()
: received.mock.calls.length;
const pass = count === expected;
const message = pass
? () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of calls: not ${(0, _jestMatcherUtils.printExpected)(
expected
)}`
: () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of calls: ${(0, _jestMatcherUtils.printExpected)(
expected
)}\n` +
`Received number of calls: ${(0, _jestMatcherUtils.printReceived)(
count
)}`;
return {
message,
pass
};
};
const createToReturnTimesMatcher = matcherName =>
function (received, expected) {
const expectedArgument = 'expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
(0, _jestMatcherUtils.ensureExpectedIsNonNegativeInteger)(
expected,
matcherName,
options
);
ensureMock(received, matcherName, expectedArgument, options);
const receivedName = received.getMockName();
// Count return values that correspond only to calls that returned
const count = received.mock.results.reduce(
(n, result) => (result.type === 'return' ? n + 1 : n),
0
);
const pass = count === expected;
const message = pass
? () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of returns: not ${(0,
_jestMatcherUtils.printExpected)(expected)}` +
(received.mock.calls.length !== count
? `\n\nReceived number of calls: ${(0,
_jestMatcherUtils.printReceived)(received.mock.calls.length)}`
: '')
: () =>
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected number of returns: ${(0, _jestMatcherUtils.printExpected)(
expected
)}\n` +
`Received number of returns: ${(0, _jestMatcherUtils.printReceived)(
count
)}` +
(received.mock.calls.length !== count
? `\nReceived number of calls: ${(0,
_jestMatcherUtils.printReceived)(received.mock.calls.length)}`
: '');
return {
message,
pass
};
};
const createToBeCalledWithMatcher = matcherName =>
function (received, ...expected) {
const expectedArgument = '...expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
ensureMockOrSpy(received, matcherName, expectedArgument, options);
const receivedIsSpy = isSpy(received);
const receivedName = receivedIsSpy ? 'spy' : received.getMockName();
const calls = receivedIsSpy
? received.calls.all().map(x => x.args)
: received.mock.calls;
const pass = calls.some(call => isEqualCall(expected, call));
const message = pass
? () => {
// Some examples of calls that are equal to expected value.
const indexedCalls = [];
let i = 0;
while (i < calls.length && indexedCalls.length < PRINT_LIMIT) {
if (isEqualCall(expected, calls[i])) {
indexedCalls.push([i, calls[i]]);
}
i += 1;
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: not ${printExpectedArgs(expected)}\n` +
(calls.length === 1 &&
(0, _jestMatcherUtils.stringify)(calls[0]) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedCallsNegative(
expected,
indexedCalls,
calls.length === 1
)) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
}
: () => {
// Some examples of calls that are not equal to expected value.
const indexedCalls = [];
let i = 0;
while (i < calls.length && indexedCalls.length < PRINT_LIMIT) {
indexedCalls.push([i, calls[i]]);
i += 1;
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
printExpectedReceivedCallsPositive(
expected,
indexedCalls,
isExpand(this.expand),
calls.length === 1
) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
};
return {
message,
pass
};
};
const createToReturnWithMatcher = matcherName =>
function (received, expected) {
const expectedArgument = 'expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
ensureMock(received, matcherName, expectedArgument, options);
const receivedName = received.getMockName();
const {calls, results} = received.mock;
const pass = results.some(result => isEqualReturn(expected, result));
const message = pass
? () => {
// Some examples of results that are equal to expected value.
const indexedResults = [];
let i = 0;
while (i < results.length && indexedResults.length < PRINT_LIMIT) {
if (isEqualReturn(expected, results[i])) {
indexedResults.push([i, results[i]]);
}
i += 1;
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: not ${(0, _jestMatcherUtils.printExpected)(
expected
)}\n` +
(results.length === 1 &&
results[0].type === 'return' &&
(0, _jestMatcherUtils.stringify)(results[0].value) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1
)) +
printNumberOfReturns(countReturns(results), calls.length)
);
}
: () => {
// Some examples of results that are not equal to expected value.
const indexedResults = [];
let i = 0;
while (i < results.length && indexedResults.length < PRINT_LIMIT) {
indexedResults.push([i, results[i]]);
i += 1;
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: ${(0, _jestMatcherUtils.printExpected)(expected)}\n` +
printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1
) +
printNumberOfReturns(countReturns(results), calls.length)
);
};
return {
message,
pass
};
};
const createLastCalledWithMatcher = matcherName =>
function (received, ...expected) {
const expectedArgument = '...expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
ensureMockOrSpy(received, matcherName, expectedArgument, options);
const receivedIsSpy = isSpy(received);
const receivedName = receivedIsSpy ? 'spy' : received.getMockName();
const calls = receivedIsSpy
? received.calls.all().map(x => x.args)
: received.mock.calls;
const iLast = calls.length - 1;
const pass = iLast >= 0 && isEqualCall(expected, calls[iLast]);
const message = pass
? () => {
const indexedCalls = [];
if (iLast > 0) {
// Display preceding call as context.
indexedCalls.push([iLast - 1, calls[iLast - 1]]);
}
indexedCalls.push([iLast, calls[iLast]]);
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: not ${printExpectedArgs(expected)}\n` +
(calls.length === 1 &&
(0, _jestMatcherUtils.stringify)(calls[0]) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedCallsNegative(
expected,
indexedCalls,
calls.length === 1,
iLast
)) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
}
: () => {
const indexedCalls = [];
if (iLast >= 0) {
if (iLast > 0) {
let i = iLast - 1;
// Is there a preceding call that is equal to expected args?
while (i >= 0 && !isEqualCall(expected, calls[i])) {
i -= 1;
}
if (i < 0) {
i = iLast - 1; // otherwise, preceding call
}
indexedCalls.push([i, calls[i]]);
}
indexedCalls.push([iLast, calls[iLast]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
printExpectedReceivedCallsPositive(
expected,
indexedCalls,
isExpand(this.expand),
calls.length === 1,
iLast
) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
};
return {
message,
pass
};
};
const createLastReturnedMatcher = matcherName =>
function (received, expected) {
const expectedArgument = 'expected';
const options = {
isNot: this.isNot,
promise: this.promise
};
ensureMock(received, matcherName, expectedArgument, options);
const receivedName = received.getMockName();
const {calls, results} = received.mock;
const iLast = results.length - 1;
const pass = iLast >= 0 && isEqualReturn(expected, results[iLast]);
const message = pass
? () => {
const indexedResults = [];
if (iLast > 0) {
// Display preceding result as context.
indexedResults.push([iLast - 1, results[iLast - 1]]);
}
indexedResults.push([iLast, results[iLast]]);
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: not ${(0, _jestMatcherUtils.printExpected)(
expected
)}\n` +
(results.length === 1 &&
results[0].type === 'return' &&
(0, _jestMatcherUtils.stringify)(results[0].value) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1,
iLast
)) +
printNumberOfReturns(countReturns(results), calls.length)
);
}
: () => {
const indexedResults = [];
if (iLast >= 0) {
if (iLast > 0) {
let i = iLast - 1;
// Is there a preceding result that is equal to expected value?
while (i >= 0 && !isEqualReturn(expected, results[i])) {
i -= 1;
}
if (i < 0) {
i = iLast - 1; // otherwise, preceding result
}
indexedResults.push([i, results[i]]);
}
indexedResults.push([iLast, results[iLast]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`Expected: ${(0, _jestMatcherUtils.printExpected)(expected)}\n` +
printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1,
iLast
) +
printNumberOfReturns(countReturns(results), calls.length)
);
};
return {
message,
pass
};
};
const createNthCalledWithMatcher = matcherName =>
function (received, nth, ...expected) {
const expectedArgument = 'n';
const options = {
expectedColor: arg => arg,
isNot: this.isNot,
promise: this.promise,
secondArgument: '...expected'
};
ensureMockOrSpy(received, matcherName, expectedArgument, options);
if (!Number.isSafeInteger(nth) || nth < 1) {
throw new Error(
(0, _jestMatcherUtils.matcherErrorMessage)(
(0, _jestMatcherUtils.matcherHint)(
matcherName,
undefined,
expectedArgument,
options
),
`${expectedArgument} must be a positive integer`,
(0, _jestMatcherUtils.printWithType)(
expectedArgument,
nth,
_jestMatcherUtils.stringify
)
)
);
}
const receivedIsSpy = isSpy(received);
const receivedName = receivedIsSpy ? 'spy' : received.getMockName();
const calls = receivedIsSpy
? received.calls.all().map(x => x.args)
: received.mock.calls;
const length = calls.length;
const iNth = nth - 1;
const pass = iNth < length && isEqualCall(expected, calls[iNth]);
const message = pass
? () => {
// Display preceding and following calls,
// in case assertions fails because index is off by one.
const indexedCalls = [];
if (iNth - 1 >= 0) {
indexedCalls.push([iNth - 1, calls[iNth - 1]]);
}
indexedCalls.push([iNth, calls[iNth]]);
if (iNth + 1 < length) {
indexedCalls.push([iNth + 1, calls[iNth + 1]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`n: ${nth}\n` +
`Expected: not ${printExpectedArgs(expected)}\n` +
(calls.length === 1 &&
(0, _jestMatcherUtils.stringify)(calls[0]) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedCallsNegative(
expected,
indexedCalls,
calls.length === 1,
iNth
)) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
}
: () => {
// Display preceding and following calls:
// * nearest call that is equal to expected args
// * otherwise, adjacent call
// in case assertions fails because of index, especially off by one.
const indexedCalls = [];
if (iNth < length) {
if (iNth - 1 >= 0) {
let i = iNth - 1;
// Is there a preceding call that is equal to expected args?
while (i >= 0 && !isEqualCall(expected, calls[i])) {
i -= 1;
}
if (i < 0) {
i = iNth - 1; // otherwise, adjacent call
}
indexedCalls.push([i, calls[i]]);
}
indexedCalls.push([iNth, calls[iNth]]);
if (iNth + 1 < length) {
let i = iNth + 1;
// Is there a following call that is equal to expected args?
while (i < length && !isEqualCall(expected, calls[i])) {
i += 1;
}
if (i >= length) {
i = iNth + 1; // otherwise, adjacent call
}
indexedCalls.push([i, calls[i]]);
}
} else if (length > 0) {
// The number of received calls is fewer than the expected number.
let i = length - 1;
// Is there a call that is equal to expected args?
while (i >= 0 && !isEqualCall(expected, calls[i])) {
i -= 1;
}
if (i < 0) {
i = length - 1; // otherwise, last call
}
indexedCalls.push([i, calls[i]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`n: ${nth}\n` +
printExpectedReceivedCallsPositive(
expected,
indexedCalls,
isExpand(this.expand),
calls.length === 1,
iNth
) +
`\nNumber of calls: ${(0, _jestMatcherUtils.printReceived)(
calls.length
)}`
);
};
return {
message,
pass
};
};
const createNthReturnedWithMatcher = matcherName =>
function (received, nth, expected) {
const expectedArgument = 'n';
const options = {
expectedColor: arg => arg,
isNot: this.isNot,
promise: this.promise,
secondArgument: 'expected'
};
ensureMock(received, matcherName, expectedArgument, options);
if (!Number.isSafeInteger(nth) || nth < 1) {
throw new Error(
(0, _jestMatcherUtils.matcherErrorMessage)(
(0, _jestMatcherUtils.matcherHint)(
matcherName,
undefined,
expectedArgument,
options
),
`${expectedArgument} must be a positive integer`,
(0, _jestMatcherUtils.printWithType)(
expectedArgument,
nth,
_jestMatcherUtils.stringify
)
)
);
}
const receivedName = received.getMockName();
const {calls, results} = received.mock;
const length = results.length;
const iNth = nth - 1;
const pass = iNth < length && isEqualReturn(expected, results[iNth]);
const message = pass
? () => {
// Display preceding and following results,
// in case assertions fails because index is off by one.
const indexedResults = [];
if (iNth - 1 >= 0) {
indexedResults.push([iNth - 1, results[iNth - 1]]);
}
indexedResults.push([iNth, results[iNth]]);
if (iNth + 1 < length) {
indexedResults.push([iNth + 1, results[iNth + 1]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`n: ${nth}\n` +
`Expected: not ${(0, _jestMatcherUtils.printExpected)(
expected
)}\n` +
(results.length === 1 &&
results[0].type === 'return' &&
(0, _jestMatcherUtils.stringify)(results[0].value) ===
(0, _jestMatcherUtils.stringify)(expected)
? ''
: printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1,
iNth
)) +
printNumberOfReturns(countReturns(results), calls.length)
);
}
: () => {
// Display preceding and following results:
// * nearest result that is equal to expected value
// * otherwise, adjacent result
// in case assertions fails because of index, especially off by one.
const indexedResults = [];
if (iNth < length) {
if (iNth - 1 >= 0) {
let i = iNth - 1;
// Is there a preceding result that is equal to expected value?
while (i >= 0 && !isEqualReturn(expected, results[i])) {
i -= 1;
}
if (i < 0) {
i = iNth - 1; // otherwise, adjacent result
}
indexedResults.push([i, results[i]]);
}
indexedResults.push([iNth, results[iNth]]);
if (iNth + 1 < length) {
let i = iNth + 1;
// Is there a following result that is equal to expected value?
while (i < length && !isEqualReturn(expected, results[i])) {
i += 1;
}
if (i >= length) {
i = iNth + 1; // otherwise, adjacent result
}
indexedResults.push([i, results[i]]);
}
} else if (length > 0) {
// The number of received calls is fewer than the expected number.
let i = length - 1;
// Is there a result that is equal to expected value?
while (i >= 0 && !isEqualReturn(expected, results[i])) {
i -= 1;
}
if (i < 0) {
i = length - 1; // otherwise, last result
}
indexedResults.push([i, results[i]]);
}
return (
// eslint-disable-next-line prefer-template
(0, _jestMatcherUtils.matcherHint)(
matcherName,
receivedName,
expectedArgument,
options
) +
'\n\n' +
`n: ${nth}\n` +
`Expected: ${(0, _jestMatcherUtils.printExpected)(expected)}\n` +
printReceivedResults(
'Received: ',
expected,
indexedResults,
results.length === 1,
iNth
) +
printNumberOfReturns(countReturns(results), calls.length)
);
};
return {
message,
pass
};
};
const spyMatchers = {
lastCalledWith: createLastCalledWithMatcher('lastCalledWith'),
lastReturnedWith: createLastReturnedMatcher('lastReturnedWith'),
nthCalledWith: createNthCalledWithMatcher('nthCalledWith'),
nthReturnedWith: createNthReturnedWithMatcher('nthReturnedWith'),
toBeCalled: createToBeCalledMatcher('toBeCalled'),
toBeCalledTimes: createToBeCalledTimesMatcher('toBeCalledTimes'),
toBeCalledWith: createToBeCalledWithMatcher('toBeCalledWith'),
toHaveBeenCalled: createToBeCalledMatcher('toHaveBeenCalled'),
toHaveBeenCalledTimes: createToBeCalledTimesMatcher('toHaveBeenCalledTimes'),
toHaveBeenCalledWith: createToBeCalledWithMatcher('toHaveBeenCalledWith'),
toHaveBeenLastCalledWith: createLastCalledWithMatcher(
'toHaveBeenLastCalledWith'
),
toHaveBeenNthCalledWith: createNthCalledWithMatcher(
'toHaveBeenNthCalledWith'
),
toHaveLastReturnedWith: createLastReturnedMatcher('toHaveLastReturnedWith'),
toHaveNthReturnedWith: createNthReturnedWithMatcher('toHaveNthReturnedWith'),
toHaveReturned: createToReturnMatcher('toHaveReturned'),
toHaveReturnedTimes: createToReturnTimesMatcher('toHaveReturnedTimes'),
toHaveReturnedWith: createToReturnWithMatcher('toHaveReturnedWith'),
toReturn: createToReturnMatcher('toReturn'),
toReturnTimes: createToReturnTimesMatcher('toReturnTimes'),
toReturnWith: createToReturnWithMatcher('toReturnWith')
};
const isMock = received =>
received != null && received._isMockFunction === true;
const isSpy = received =>
received != null &&
received.calls != null &&
typeof received.calls.all === 'function' &&
typeof received.calls.count === 'function';
const ensureMockOrSpy = (received, matcherName, expectedArgument, options) => {
if (!isMock(received) && !isSpy(received)) {
throw new Error(
(0, _jestMatcherUtils.matcherErrorMessage)(
(0, _jestMatcherUtils.matcherHint)(
matcherName,
undefined,
expectedArgument,
options
),
`${(0, _jestMatcherUtils.RECEIVED_COLOR)(
'received'
)} value must be a mock or spy function`,
(0, _jestMatcherUtils.printWithType)(
'Received',
received,
_jestMatcherUtils.printReceived
)
)
);
}
};
const ensureMock = (received, matcherName, expectedArgument, options) => {
if (!isMock(received)) {
throw new Error(
(0, _jestMatcherUtils.matcherErrorMessage)(
(0, _jestMatcherUtils.matcherHint)(
matcherName,
undefined,
expectedArgument,
options
),
`${(0, _jestMatcherUtils.RECEIVED_COLOR)(
'received'
)} value must be a mock function`,
(0, _jestMatcherUtils.printWithType)(
'Received',
received,
_jestMatcherUtils.printReceived
)
)
);
}
};
var _default = spyMatchers;
exports.default = _default;