Javascript 如何使用jest配置全局导入模块？
我有一个测试文件，如：Javascript 如何使用jest配置全局导入模块？,javascript,jestjs,chai,Javascript,Jestjs,Chai,我有一个测试文件，如： let{expect}=chai； 描述（…） 当我运行jest时，我的测试显然失败了，错误没有定义。简单的解决方案是在每个测试文件中导入chai，但我更喜欢找到更好的解决方案。在jestConfig中是否有办法在全球范围内导入chai 我还尝试了setupFilesconfig来运行一个导入了chai的文件，但没有运行。Jestconfiguration将完成这项工作。将chai模块连接到global对象，然后您可以直接在测试文件中使用chai 例如 jest.con
let{expect}=chai；
描述（…）
setupFilesJestchaiglobalchaijest.config.jsmodule.exports={
预设：'ts jest/presets/js with ts'，
测试环境：“酶”，
设置文件：[
“/Users/ldu020/workspace/github.com/mrdulin/jest-codelab/src/stackoverflow/45702292/chai.setup.js”
],
setupFilesAfterEnv:['jest-Ezyme']，
测试环境选项：{
酶适配器：‘反应16’，
},
coverageReporters:['json'，'text'，'lcov'，'clover']，
测试匹配：['***/.[jt]s？（x）'***/？（*）+（规范测试）。[jt]s？（x）]，
};
chai.setup.jsglobal.chai=require（'chai'））
index.test.jsdescription（'45702292'，（）=>{
它（'应该通过'，（）=>{
控制台日志（柴）
chai.expect（1+1）.to.be.eq（2）
});
});
PASS src/stackoverflow/45702292/index.test.js (16.492s)
45702292
✓ should pass (18ms)
console.log src/stackoverflow/45702292/index.test.js:3
{ version: '4.2.0',
AssertionError: [Function: AssertionError],
use: [Function],
util: 1,
config:
{ includeStack: false,
showDiff: true,
truncateThreshold: 40,
useProxy: true,
proxyExcludedKeys: [ 'then', 'catch', 'inspect', 'toJSON' ] },
Assertion:
{ [Function: Assertion]
addProperty: [Function],
addMethod: [Function],
addChainableMethod: [Function],
overwriteProperty: [Function],
overwriteMethod: [Function],
overwriteChainableMethod: [Function] },
expect: { [Function] fail: [Function] },
should: [Function: loadShould],
Should: [Function: loadShould],
assert:
{ [Function]
fail: [Function],
isOk: [Function],
isNotOk: [Function],
equal: [Function],
notEqual: [Function],
strictEqual: [Function],
notStrictEqual: [Function],
deepStrictEqual: [Function],
deepEqual: [Function],
notDeepEqual: [Function],
isAbove: [Function],
isAtLeast: [Function],
isBelow: [Function],
isAtMost: [Function],
isTrue: [Function],
isNotTrue: [Function],
isFalse: [Function],
isNotFalse: [Function],
isNull: [Function],
isNotNull: [Function],
isNaN: [Function],
isNotNaN: [Function],
exists: [Function],
notExists: [Function],
isUndefined: [Function],
isDefined: [Function],
isFunction: [Function],
isNotFunction: [Function],
isObject: [Function],
isNotObject: [Function],
isArray: [Function],
isNotArray: [Function],
isString: [Function],
isNotString: [Function],
isNumber: [Function],
isNotNumber: [Function],
isFinite: [Function],
isBoolean: [Function],
isNotBoolean: [Function],
typeOf: [Function],
notTypeOf: [Function],
instanceOf: [Function],
notInstanceOf: [Function],
include: [Function],
notInclude: [Function],
deepInclude: [Function],
notDeepInclude: [Function],
nestedInclude: [Function],
notNestedInclude: [Function],
deepNestedInclude: [Function],
notDeepNestedInclude: [Function],
ownInclude: [Function],
notOwnInclude: [Function],
deepOwnInclude: [Function],
notDeepOwnInclude: [Function],
match: [Function],
notMatch: [Function],
property: [Function],
notProperty: [Function],
propertyVal: [Function],
notPropertyVal: [Function],
deepPropertyVal: [Function],
notDeepPropertyVal: [Function],
ownProperty: [Function],
notOwnProperty: [Function],
ownPropertyVal: [Function],
notOwnPropertyVal: [Function],
deepOwnPropertyVal: [Function],
notDeepOwnPropertyVal: [Function],
nestedProperty: [Function],
notNestedProperty: [Function],
nestedPropertyVal: [Function],
notNestedPropertyVal: [Function],
deepNestedPropertyVal: [Function],
notDeepNestedPropertyVal: [Function],
lengthOf: [Function],
hasAnyKeys: [Function],
hasAllKeys: [Function],
containsAllKeys: [Function],
doesNotHaveAnyKeys: [Function],
doesNotHaveAllKeys: [Function],
hasAnyDeepKeys: [Function],
hasAllDeepKeys: [Function],
containsAllDeepKeys: [Function],
doesNotHaveAnyDeepKeys: [Function],
doesNotHaveAllDeepKeys: [Function],
throws: [Function],
doesNotThrow: [Function],
operator: [Function],
closeTo: [Function],
approximately: [Function],
sameMembers: [Function],
notSameMembers: [Function],
sameDeepMembers: [Function],
notSameDeepMembers: [Function],
sameOrderedMembers: [Function],
notSameOrderedMembers: [Function],
sameDeepOrderedMembers: [Function],
notSameDeepOrderedMembers: [Function],
includeMembers: [Function],
notIncludeMembers: [Function],
includeDeepMembers: [Function],
notIncludeDeepMembers: [Function],
includeOrderedMembers: [Function],
notIncludeOrderedMembers: [Function],
includeDeepOrderedMembers: [Function],
notIncludeDeepOrderedMembers: [Function],
oneOf: [Function],
changes: [Function],
changesBy: [Function],
doesNotChange: [Function],
changesButNotBy: [Function],
increases: [Function],
increasesBy: [Function],
doesNotIncrease: [Function],
increasesButNotBy: [Function],
decreases: [Function],
decreasesBy: [Function],
doesNotDecrease: [Function],
doesNotDecreaseBy: [Function],
decreasesButNotBy: [Function],
ifError: [Function],
isExtensible: [Function],
isNotExtensible: [Function],
isSealed: [Function],
isNotSealed: [Function],
isFrozen: [Function],
isNotFrozen: [Function],
isEmpty: [Function],
isNotEmpty: [Function],
ok: [Function],
notOk: [Function],
throw: [Function],
Throw: [Function],
extensible: [Function],
notExtensible: [Function],
sealed: [Function],
notSealed: [Function],
frozen: [Function],
notFrozen: [Function],
empty: [Function],
notEmpty: [Function] } }
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 18.971s
Jestchaiglobalchaijest.config.jsmodule.exports={
预设：'ts jest/presets/js with ts'，
测试环境：“酶”，
设置文件：[
“/Users/ldu020/workspace/github.com/mrdulin/jest-codelab/src/stackoverflow/45702292/chai.setup.js”
],
setupFilesAfterEnv:['jest-Ezyme']，
测试环境选项：{
酶适配器：‘反应16’，
},
coverageReporters:['json'，'text'，'lcov'，'clover']，
测试匹配：['***/.[jt]s？（x）'***/？（*）+（规范测试）。[jt]s？（x）]，
};
chai.setup.jsglobal.chai=require（'chai'））
index.test.jsdescription（'45702292'，（）=>{
它（'应该通过'，（）=>{
控制台日志（柴）
chai.expect（1+1）.to.be.eq（2）
});
});
PASS src/stackoverflow/45702292/index.test.js (16.492s)
45702292
✓ should pass (18ms)
console.log src/stackoverflow/45702292/index.test.js:3
{ version: '4.2.0',
AssertionError: [Function: AssertionError],
use: [Function],
util: 1,
config:
{ includeStack: false,
showDiff: true,
truncateThreshold: 40,
useProxy: true,
proxyExcludedKeys: [ 'then', 'catch', 'inspect', 'toJSON' ] },
Assertion:
{ [Function: Assertion]
addProperty: [Function],
addMethod: [Function],
addChainableMethod: [Function],
overwriteProperty: [Function],
overwriteMethod: [Function],
overwriteChainableMethod: [Function] },
expect: { [Function] fail: [Function] },
should: [Function: loadShould],
Should: [Function: loadShould],
assert:
{ [Function]
fail: [Function],
isOk: [Function],
isNotOk: [Function],
equal: [Function],
notEqual: [Function],
strictEqual: [Function],
notStrictEqual: [Function],
deepStrictEqual: [Function],
deepEqual: [Function],
notDeepEqual: [Function],
isAbove: [Function],
isAtLeast: [Function],
isBelow: [Function],
isAtMost: [Function],
isTrue: [Function],
isNotTrue: [Function],
isFalse: [Function],
isNotFalse: [Function],
isNull: [Function],
isNotNull: [Function],
isNaN: [Function],
isNotNaN: [Function],
exists: [Function],
notExists: [Function],
isUndefined: [Function],
isDefined: [Function],
isFunction: [Function],
isNotFunction: [Function],
isObject: [Function],
isNotObject: [Function],
isArray: [Function],
isNotArray: [Function],
isString: [Function],
isNotString: [Function],
isNumber: [Function],
isNotNumber: [Function],
isFinite: [Function],
isBoolean: [Function],
isNotBoolean: [Function],
typeOf: [Function],
notTypeOf: [Function],
instanceOf: [Function],
notInstanceOf: [Function],
include: [Function],
notInclude: [Function],
deepInclude: [Function],
notDeepInclude: [Function],
nestedInclude: [Function],
notNestedInclude: [Function],
deepNestedInclude: [Function],
notDeepNestedInclude: [Function],
ownInclude: [Function],
notOwnInclude: [Function],
deepOwnInclude: [Function],
notDeepOwnInclude: [Function],
match: [Function],
notMatch: [Function],
property: [Function],
notProperty: [Function],
propertyVal: [Function],
notPropertyVal: [Function],
deepPropertyVal: [Function],
notDeepPropertyVal: [Function],
ownProperty: [Function],
notOwnProperty: [Function],
ownPropertyVal: [Function],
notOwnPropertyVal: [Function],
deepOwnPropertyVal: [Function],
notDeepOwnPropertyVal: [Function],
nestedProperty: [Function],
notNestedProperty: [Function],
nestedPropertyVal: [Function],
notNestedPropertyVal: [Function],
deepNestedPropertyVal: [Function],
notDeepNestedPropertyVal: [Function],
lengthOf: [Function],
hasAnyKeys: [Function],
hasAllKeys: [Function],
containsAllKeys: [Function],
doesNotHaveAnyKeys: [Function],
doesNotHaveAllKeys: [Function],
hasAnyDeepKeys: [Function],
hasAllDeepKeys: [Function],
containsAllDeepKeys: [Function],
doesNotHaveAnyDeepKeys: [Function],
doesNotHaveAllDeepKeys: [Function],
throws: [Function],
doesNotThrow: [Function],
operator: [Function],
closeTo: [Function],
approximately: [Function],
sameMembers: [Function],
notSameMembers: [Function],
sameDeepMembers: [Function],
notSameDeepMembers: [Function],
sameOrderedMembers: [Function],
notSameOrderedMembers: [Function],
sameDeepOrderedMembers: [Function],
notSameDeepOrderedMembers: [Function],
includeMembers: [Function],
notIncludeMembers: [Function],
includeDeepMembers: [Function],
notIncludeDeepMembers: [Function],
includeOrderedMembers: [Function],
notIncludeOrderedMembers: [Function],
includeDeepOrderedMembers: [Function],
notIncludeDeepOrderedMembers: [Function],
oneOf: [Function],
changes: [Function],
changesBy: [Function],
doesNotChange: [Function],
changesButNotBy: [Function],
increases: [Function],
increasesBy: [Function],
doesNotIncrease: [Function],
increasesButNotBy: [Function],
decreases: [Function],
decreasesBy: [Function],
doesNotDecrease: [Function],
doesNotDecreaseBy: [Function],
decreasesButNotBy: [Function],
ifError: [Function],
isExtensible: [Function],
isNotExtensible: [Function],
isSealed: [Function],
isNotSealed: [Function],
isFrozen: [Function],
isNotFrozen: [Function],
isEmpty: [Function],
isNotEmpty: [Function],
ok: [Function],
notOk: [Function],
throw: [Function],
Throw: [Function],
extensible: [Function],
notExtensible: [Function],
sealed: [Function],
notSealed: [Function],
frozen: [Function],
notFrozen: [Function],
empty: [Function],
notEmpty: [Function] } }
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 18.971s