Jest configuration with multiple moduleNameMapper - nest

Question

I have a requirement where I need to map my libs as an expanded path in the Jest config moduleNameMapper configuration.
Along with that I also need to provide one axois as the name module mapping.
How can I do both in the moduleNameMapper in jest-e2e.js?
Here is my existing jest-e2e.js file:
const { pathsToModuleNameMapper } = require('ts-jest');
const { compilerOptions } = require('../../../tsconfig.json');
module.exports = {
moduleFileExtensions: ["js", "json", "ts"],
verbose: true,
rootDir: '.',
preset: "ts-jest",
testEnvironment: "node",
testRegex: ".e2e-spec.ts$",
transform: {
"^.+\\.(t|j)s$": "ts-jest"
},
moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, { prefix: '"<rootDir>/../../../' }),
};
My tsconfig.json looks like:
{
"paths": {
"#app/logger": [
"libs/logger/src"
],
}
}
I want to add one more moduleNameMapping which is not there in the tsconfig.json.
Basically, I want to add this mapping as well:
moduleNameMapper: {
'^axios$': require.resolve('axios'),
}
How may I combine both the stuffs into the same moduleNameMapper clause in the jest config file.
This is what I have tried so far:
const { pathsToModuleNameMapper } = require('ts-jest');
const { compilerOptions } = require('../../../tsconfig.json');
const libNameMapping = pathsToModuleNameMapper(compilerOptions.paths, { prefix: '"<rootDir>/../../../' });
module.exports = {
moduleFileExtensions: ["js", "json", "ts"],
verbose: true,
rootDir: '.',
preset: "ts-jest",
testEnvironment: "node",
testRegex: ".e2e-spec.ts$",
transform: {
"^.+\\.(t|j)s$": "ts-jest"
},
moduleNameMapper: {
'^axios$': require.resolve('axios'),
...libNameMapping,
},
};
So basically how can both the axios and the nameMapping can be combined and applied to the moduleNameMapper portion of the configuration. That's the query here.
Now if I want to add it like without any helper, like below, it also does not work:
moduleNameMapper: {
'^axios$': require.resolve('axios'),
'^#app/(.*)$': '<rootDir>/../../../libs/$1/src',
},
The path are not resolved, gives this error:
Configuration error:
Could not locate module #app/common/const mapped as:
C:\Users\<>\clients\<>\<>\<>\<>\nest-services\libs\$1\src.
Please check your configuration for these entries:
{
"moduleNameMapper": {
"/^#app\/(.*)$/": "C:\Users\<>\clients\<>\<>\<>\<>\nest-services\libs\$1\src"
},
"resolver": undefined
}
1 | import { createParamDecorator, ExecutionContext } from '#nestjs/common';
> 2 | import { constants } from '#app/common/const';
I think I have to use the Jest helper method. But how can I do it combining both axois and my libs name mapping, is not getting it.