How to Leverage Test Code from One Project in Another with Multi-project Gradle Dependencies?

How to Manage Multi-project Test Dependencies in Gradle

When working with multiple projects in Gradle, managing dependencies can become intricate, especially when it comes to test code. This article will provide a solution to ensure that test code from one project can be utilized in another.

Suppose you have the following project structure:

• Project A: Contains production and test code
• Project B: Relies on production code from Project A and needs to access its test code as well

In your build.gradle file for Project B, you have included the following dependency:

dependencies {
  compile project(':ProjectA')
}

While this configuration allows Project B to use the production code from Project A, it doesn't include the test code.

To resolve this issue, you need to add a testCompile dependency. In Project B's build.gradle file, modify the dependencies section as follows:

dependencies {
  compile project(':ProjectA')
  testCompile project(':A').sourceSets.test.output
}

This configuration will make the test code from Project A available to Project B. Remember to replace 'A' in the dependency statement with the actual project name if it differs.

This solution has been tested with Gradle 1.7 and ensures that test code dependencies are properly managed across multiple projects.

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