nx build does not replace environment file in any variation

I have the following configuration in my workspace.json for my NodeJS project:

"configurations": {
            "production": {
              "optimization": true,
              "extractLicenses": true,
              "inspect": false,
              "fileReplacements": [
                {
                  "replace": "apps/api/src/environments/environment.ts",
                  "with": "apps/api/src/environments/environment.prod.ts"
                }
              ]
            },
            "test": {
              "optimization": true,
              "extractLicenses": true,
              "inspect": false,
              "fileReplacements": [
                {
                  "replace": "apps/api/src/environments/environment.ts",
                  "with": "apps/api/src/environments/environment.test.ts"
                }
              ]
            }
          }
        },

The environment files sit in the same hierarchy:

I am unable to find which command will pick up the test configuration. I have tried multiple things it did not work:

nx build api --test # does not work
NODE_ENV=test nx build api # does not work
NODE_ENV=test nx build api --test # does not work
nx build api -c=test # does not work
nx build api -c test # does not work
nx build api --prod # works for prod env file

Expected Behavior

I should be able to choose between different environment files during the build.

Current Behavior

fileReplacement does not seem to work for NodeJS project for anything other than prod.

Steps to Reproduce

In your workspace with one server side project, say api, do the the following:

1. Add a new file environment.test.ts on the same pattern as the existing environment.prod.ts
2. In the workspace.json under the "api" > "architect" > "buiid" > "configurations" block, add a new configuration for the “test” environment that looks like the existing “production” configuration, except it has "fileReplacements" array that looks like this:

               {
                  "replace": "apps/api/src/environments/environment.ts",
                  "with": "apps/api/src/environments/environment.test.ts"
                }

Now try to do a build that picks up and replaces environment.ts with environment.test.ts during the build. It does not seem to be possible.

The commands I tried above did not help me. Here is my nx version.

nx --version
8.9.0

[naishe]

Apologies. The --configuration worked. For some reason when I tried --configuration yesterday following the documentation (it was documented under Angular project), it worked for the React project but it did not seem to work for NodeJS. It is totally my fault.

Thanks for the suggestion.

[rarmatei]

can you please try nx build api --configuration=test ?

If not, can you please create an example repo showing this problem?