`tns test` command cannot work if the source is not in `src` directory

[Fatme]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.1.x
• Cross-platform modules:
• Android Runtime:
• iOS Runtime:
• Plugin(s):

Describe the bug
Currently tns test command throws the following error in case when source code is not in src directory:

10 10 2019 11:34:38.105:ERROR [config]: Error in config file!
 Error: The specified path to app directory /Users/havaluova/Work/sample-Groceries/src does not exist. Unable to find entry module.
    at verifyEntryModuleDirectory (/Users/havaluova/Work/sample-Groceries/node_modules/nativescript-dev-webpack/index.js:163:15)
    at Object.exports.getEntryModule (/Users/havaluova/Work/sample-Groceries/node_modules/nativescript-dev-webpack/index.js:29:5)
    at module.exports.env (/Users/havaluova/Work/sample-Groceries/webpack.config.js:60:38)
    at setWebpack (/Users/havaluova/Work/sample-Groceries/karma.conf.js:102:50)
    at module.exports (/Users/havaluova/Work/sample-Groceries/karma.conf.js:77:3)
    at Object.parseConfig (/Users/havaluova/Work/sample-Groceries/node_modules/karma/lib/config.js:393:5)
    at new Server (/Users/havaluova/Work/sample-Groceries/node_modules/karma/lib/server.js:66:24)
    at process.on (/Users/havaluova/Work/nativescript-cli/lib/services/karma-execution.js:6:160)
    at process.emit (events.js:182:13)
    at emit (internal/child_process.js:812:12)
    at process._tickCallback (internal/process/next_tick.js:63:19)
Test run failed.

To Reproduce
There are 2 options to reproduce the issue:

Option 1:

1. Clone https://github.com/NativeScript/sample-Groceries
2. npm i && tns test ios

Option 2:

1. Create new angular project
2. Rename src to src1
3. Change appPath to src1 inside nsconfig.json
4. tns test ios

Expected behavior
The unit tests should be successfully executed.

[jevenson]

Is this change available with a "next" version of the CLI on npm? When will it be available in latest?

[Fatme]

Hey @jevenson,

The change is available in the rc version of the CLI. You can install it using npm i -g nativescript@rc. It'll be available officially in the next minor release of NativeScript which is planned in a few weeks.

[Fatme]

Actually just updating CLI will not fix the problem if you have already executed tns test init command in your application. In such a situation, you need to manually include this change inside karma.config.js

nativescript-cli/resources/test/karma.conf.js

Line 102 in e75acf8

env.appPath = config.appPath;