Jest async setup before each test file
I have to do an async setup before each test file in jest (specifically to start a MongoMemoryServer each time).
- Using
setupFilesisn't working because does not handle async work. Passing a global Promise won't work because I have to set the db uri string before requiring my db module (I don't want to mock it after await a Promise, that's just bad). - The official guide uses
testEnvironmentand sets up the mongo server withglobalSetup. Strangely enough the docs say
Note: TestEnvironment is sandboxed. Each test suite will trigger setup/teardown in their own TestEnvironment.
But that is not true, because setup and teardown are global.
Tests run concurrently, and I need to insert documents in beforeAll in each file and that causes write errors.
I am stunned by the fact that so many people use the Node/MongoDB/jest stack and yet I stumble upon so many problems.
Anyway, thank you!
javascript installation jestjs each
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
add a comment |
I have to do an async setup before each test file in jest (specifically to start a MongoMemoryServer each time).
- Using
setupFilesisn't working because does not handle async work. Passing a global Promise won't work because I have to set the db uri string before requiring my db module (I don't want to mock it after await a Promise, that's just bad). - The official guide uses
testEnvironmentand sets up the mongo server withglobalSetup. Strangely enough the docs say
Note: TestEnvironment is sandboxed. Each test suite will trigger setup/teardown in their own TestEnvironment.
But that is not true, because setup and teardown are global.
Tests run concurrently, and I need to insert documents in beforeAll in each file and that causes write errors.
I am stunned by the fact that so many people use the Node/MongoDB/jest stack and yet I stumble upon so many problems.
Anyway, thank you!
javascript installation jestjs each
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
1
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54
add a comment |
I have to do an async setup before each test file in jest (specifically to start a MongoMemoryServer each time).
- Using
setupFilesisn't working because does not handle async work. Passing a global Promise won't work because I have to set the db uri string before requiring my db module (I don't want to mock it after await a Promise, that's just bad). - The official guide uses
testEnvironmentand sets up the mongo server withglobalSetup. Strangely enough the docs say
Note: TestEnvironment is sandboxed. Each test suite will trigger setup/teardown in their own TestEnvironment.
But that is not true, because setup and teardown are global.
Tests run concurrently, and I need to insert documents in beforeAll in each file and that causes write errors.
I am stunned by the fact that so many people use the Node/MongoDB/jest stack and yet I stumble upon so many problems.
Anyway, thank you!
javascript installation jestjs each
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
I have to do an async setup before each test file in jest (specifically to start a MongoMemoryServer each time).
- Using
setupFilesisn't working because does not handle async work. Passing a global Promise won't work because I have to set the db uri string before requiring my db module (I don't want to mock it after await a Promise, that's just bad). - The official guide uses
testEnvironmentand sets up the mongo server withglobalSetup. Strangely enough the docs say
Note: TestEnvironment is sandboxed. Each test suite will trigger setup/teardown in their own TestEnvironment.
But that is not true, because setup and teardown are global.
Tests run concurrently, and I need to insert documents in beforeAll in each file and that causes write errors.
I am stunned by the fact that so many people use the Node/MongoDB/jest stack and yet I stumble upon so many problems.
Anyway, thank you!
javascript installation jestjs each
javascript installation jestjs each
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
edited Nov 13 '18 at 14:21
RandomDev
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
asked Nov 13 '18 at 11:24
RandomDevRandomDev
204
204
"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
1
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54
add a comment |
"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
1
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54
"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
1
1
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54
add a comment |
1 Answer
1
active
oldest
votes
You're confusing setup/teardown methods of TestEnvironment (which will be executed before/after every test file) with globalSetup/globalTeardown of Jest runner (which will be executed before/after all tests).
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
add a comment |
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1 Answer
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1 Answer
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You're confusing setup/teardown methods of TestEnvironment (which will be executed before/after every test file) with globalSetup/globalTeardown of Jest runner (which will be executed before/after all tests).
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
add a comment |
You're confusing setup/teardown methods of TestEnvironment (which will be executed before/after every test file) with globalSetup/globalTeardown of Jest runner (which will be executed before/after all tests).
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
add a comment |
You're confusing setup/teardown methods of TestEnvironment (which will be executed before/after every test file) with globalSetup/globalTeardown of Jest runner (which will be executed before/after all tests).
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
You're confusing setup/teardown methods of TestEnvironment (which will be executed before/after every test file) with globalSetup/globalTeardown of Jest runner (which will be executed before/after all tests).
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
answered Nov 16 '18 at 20:28
Michał PierzchałaMichał Pierzchała
559315
559315
add a comment |
add a comment |
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"because setup and teardown are global" do you mean they run just once instead of running N times?
– skyboyer
Nov 13 '18 at 11:35
1
Yes, they run once
– RandomDev
Nov 13 '18 at 12:54