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“No tests found” when running jest from command line

1

In a React project built with create-react-app where the test files resides in the same folder next to the code they need to test, like follows:

|- /src/path
| |- List.tsx
| |- List.test.tsx

when trying to run npx jest, or using the global jest, I get the following result:

No tests found
In C:srcpath
 34 files checked.
 testMatch: ***test.tsx,**/*test.tsx,src***.test.tsx,src/**/*.test.tsx,C:srcpathsrc***.test.tsx,C:srcpathsrc***.test.tsx - 0 matches
 testPathIgnorePatterns: \node_modules\ - 34 matches
Pattern: - 0 matches

Running npm test - which in turns run the script react-scripts test from package.json - works fine and is able to find and run all the tests in the project (in watch mode).

Any idea how to solve this problem?

Environment

• node: 10.15.0
  


• npm: 6.4.1
  


• react-scripts: 2.1.3
  


• Operating system: Windows 10 1809 17763.316
  

jest.config.js

module.exports = /)(.test).tsx?$'
 ],
;

reactjs typescript jestjs react-scripts

share|improve this question

edited Mar 8 at 10:06

Marco Lackovic

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

add a comment | 

1

In a React project built with create-react-app where the test files resides in the same folder next to the code they need to test, like follows:

|- /src/path
| |- List.tsx
| |- List.test.tsx

when trying to run npx jest, or using the global jest, I get the following result:

No tests found
In C:srcpath
 34 files checked.
 testMatch: ***test.tsx,**/*test.tsx,src***.test.tsx,src/**/*.test.tsx,C:srcpathsrc***.test.tsx,C:srcpathsrc***.test.tsx - 0 matches
 testPathIgnorePatterns: \node_modules\ - 34 matches
Pattern: - 0 matches

Running npm test - which in turns run the script react-scripts test from package.json - works fine and is able to find and run all the tests in the project (in watch mode).

Any idea how to solve this problem?

Environment

• node: 10.15.0
  


• npm: 6.4.1
  


• react-scripts: 2.1.3
  


• Operating system: Windows 10 1809 17763.316
  

jest.config.js

module.exports = /)(.test).tsx?$'
 ],
;

reactjs typescript jestjs react-scripts

share|improve this question

edited Mar 8 at 10:06

Marco Lackovic

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

add a comment | 

In a React project built with create-react-app where the test files resides in the same folder next to the code they need to test, like follows:

|- /src/path
| |- List.tsx
| |- List.test.tsx

when trying to run npx jest, or using the global jest, I get the following result:

No tests found
In C:srcpath
 34 files checked.
 testMatch: ***test.tsx,**/*test.tsx,src***.test.tsx,src/**/*.test.tsx,C:srcpathsrc***.test.tsx,C:srcpathsrc***.test.tsx - 0 matches
 testPathIgnorePatterns: \node_modules\ - 34 matches
Pattern: - 0 matches

Running npm test - which in turns run the script react-scripts test from package.json - works fine and is able to find and run all the tests in the project (in watch mode).

Any idea how to solve this problem?

Environment

• node: 10.15.0
  


• npm: 6.4.1
  


• react-scripts: 2.1.3
  


• Operating system: Windows 10 1809 17763.316
  

jest.config.js

module.exports = /)(.test).tsx?$'
 ],
;

reactjs typescript jestjs react-scripts

share|improve this question

edited Mar 8 at 10:06

Marco Lackovic

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

|- /src/path
| |- List.tsx
| |- List.test.tsx

No tests found
In C:srcpath
 34 files checked.
 testMatch: ***test.tsx,**/*test.tsx,src***.test.tsx,src/**/*.test.tsx,C:srcpathsrc***.test.tsx,C:srcpathsrc***.test.tsx - 0 matches
 testPathIgnorePatterns: \node_modules\ - 34 matches
Pattern: - 0 matches

module.exports = /)(.test).tsx?$'
 ],
;

share|improve this question

edited Mar 8 at 10:06

Marco Lackovic

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

share|improve this question

edited Mar 8 at 10:06

Marco Lackovic

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

asked Mar 7 at 16:07

Marco LackovicMarco Lackovic

2,66042736

2 Answers
2

active

oldest

votes

1

According to this answer, projects built with create-react-app are not meant to be tested directly with jest.

react-scripts test should be used instead of jest to make use of the Jest configuration generated by the CRA setup.

share|improve this answer

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

add a comment | 

0

Have you tried using / as a directory separator?

From Jest docs:

See the micromatch package for details of the patterns you can specify.

From Micromatch docs:

Micromatch exclusively and explicitly reserves backslashes for escaping characters in a glob pattern, even on windows. This is consistent with bash behavior.

...

In other words, since \ is reserved as an escape character in globs, on windows path.join('foo', '*') would result in foo\*, which tells micromatch to match * as a literal character. This is the same behavior as bash.

So I'd try:

module.exports = 
 testMatch: [ '**/*.test.tsx' ]
;

share|improve this answer

answered Mar 7 at 16:35

gombosggombosg

6414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks! Yes, I have tried with / with no success. I have updated my questions with other patterns I have tried.
  
  – Marco Lackovic
  Mar 8 at 9:08
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  From here I can't really help because I'm not on windows... is jest.config.js in the same folder as src?
  
  – gombosg
  Mar 8 at 17:42
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It is not in the same folder, it is one folder below it, in the root of the project.
  
  – Marco Lackovic
  Mar 9 at 18:37
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @MarcoLackovic have you tried running without setting the matches? The defaults seem to be fine for you.
  
  – gombosg
  Mar 11 at 1:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Then maybe raising a GitHub issue is the way to go if it doesn't work with the defaults.
  
  – gombosg
  Mar 11 at 18:24
  

  
  
  
  

 | 
show 1 more comment

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1

According to this answer, projects built with create-react-app are not meant to be tested directly with jest.

react-scripts test should be used instead of jest to make use of the Jest configuration generated by the CRA setup.

share|improve this answer

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

add a comment | 

1

According to this answer, projects built with create-react-app are not meant to be tested directly with jest.

react-scripts test should be used instead of jest to make use of the Jest configuration generated by the CRA setup.

share|improve this answer

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

add a comment | 

According to this answer, projects built with create-react-app are not meant to be tested directly with jest.

react-scripts test should be used instead of jest to make use of the Jest configuration generated by the CRA setup.

share|improve this answer

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

share|improve this answer

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

answered Mar 14 at 9:19

Marco LackovicMarco Lackovic

2,66042736

0

Have you tried using / as a directory separator?

From Jest docs:

See the micromatch package for details of the patterns you can specify.

From Micromatch docs:

Micromatch exclusively and explicitly reserves backslashes for escaping characters in a glob pattern, even on windows. This is consistent with bash behavior.

...

In other words, since \ is reserved as an escape character in globs, on windows path.join('foo', '*') would result in foo\*, which tells micromatch to match * as a literal character. This is the same behavior as bash.

So I'd try:

module.exports = 
 testMatch: [ '**/*.test.tsx' ]
;

share|improve this answer

answered Mar 7 at 16:35

gombosggombosg

6414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks! Yes, I have tried with / with no success. I have updated my questions with other patterns I have tried.
  
  – Marco Lackovic
  Mar 8 at 9:08
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  From here I can't really help because I'm not on windows... is jest.config.js in the same folder as src?
  
  – gombosg
  Mar 8 at 17:42
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It is not in the same folder, it is one folder below it, in the root of the project.
  
  – Marco Lackovic
  Mar 9 at 18:37
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @MarcoLackovic have you tried running without setting the matches? The defaults seem to be fine for you.
  
  – gombosg
  Mar 11 at 1:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Then maybe raising a GitHub issue is the way to go if it doesn't work with the defaults.
  
  – gombosg
  Mar 11 at 18:24
  

  
  
  
  

 | 
show 1 more comment

0

Have you tried using / as a directory separator?

From Jest docs:

See the micromatch package for details of the patterns you can specify.

From Micromatch docs:

Micromatch exclusively and explicitly reserves backslashes for escaping characters in a glob pattern, even on windows. This is consistent with bash behavior.

...

In other words, since \ is reserved as an escape character in globs, on windows path.join('foo', '*') would result in foo\*, which tells micromatch to match * as a literal character. This is the same behavior as bash.

So I'd try:

module.exports = 
 testMatch: [ '**/*.test.tsx' ]
;

share|improve this answer

answered Mar 7 at 16:35

gombosggombosg

6414

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks! Yes, I have tried with / with no success. I have updated my questions with other patterns I have tried.
  
  – Marco Lackovic
  Mar 8 at 9:08
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  From here I can't really help because I'm not on windows... is jest.config.js in the same folder as src?
  
  – gombosg
  Mar 8 at 17:42
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It is not in the same folder, it is one folder below it, in the root of the project.
  
  – Marco Lackovic
  Mar 9 at 18:37
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @MarcoLackovic have you tried running without setting the matches? The defaults seem to be fine for you.
  
  – gombosg
  Mar 11 at 1:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Then maybe raising a GitHub issue is the way to go if it doesn't work with the defaults.
  
  – gombosg
  Mar 11 at 18:24
  

  
  
  
  

 | 
show 1 more comment

Have you tried using / as a directory separator?

From Jest docs:

See the micromatch package for details of the patterns you can specify.

From Micromatch docs:

Micromatch exclusively and explicitly reserves backslashes for escaping characters in a glob pattern, even on windows. This is consistent with bash behavior.

...

In other words, since \ is reserved as an escape character in globs, on windows path.join('foo', '*') would result in foo\*, which tells micromatch to match * as a literal character. This is the same behavior as bash.

So I'd try:

module.exports = 
 testMatch: [ '**/*.test.tsx' ]
;

share|improve this answer

answered Mar 7 at 16:35

gombosggombosg

6414

module.exports = 
 testMatch: [ '**/*.test.tsx' ]
;

share|improve this answer

answered Mar 7 at 16:35

gombosggombosg

6414

answered Mar 7 at 16:35

gombosggombosg

6414

answered Mar 7 at 16:35

gombosggombosg

6414