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grpc-test

Includes a JUnit 5 Extension that can automatically release gRPC resources at the end of the test. Like GrpcCleanupRule, but built for JUnit 5 and actively maintained.

If you like it, consider becoming a .

Installation

You can find the latest version on Maven Central.

Usage

Declare a Resources in one of the three following ways, and register Server and/or ManagedChannel instances with it.

Get a Resources from:

  1. A test method parameter injection, or
  2. An instance field, or
  3. A static field.

The difference is in the lifecycle of the Resources object. For #1, a new instance is created for every test method. #2 is the same as #1 unless the test class declares @TestInstance(TestInstance.Lifecycle.PER_CLASS), in which case one instance is shared among all the tests. #3 is obviously one instance shared among all the tests.

@ExtendWith(GrpcCleanupExtension.class)
class ExampleTestCase {
    @Test
    void testSuccessful(Resources resources) {
        resources.register(server); // use default timeout
        resources.register(channel, Duration.ofSeconds(1)); // override default timeout
        resources.timeout(Duration.ofSeconds(3)); // change default timeout to 3 seconds
        resources.register(channel2) // channel2 timeout is 3 seconds; server and channel timeouts didn't change
    }
}

ℹ️ Note that for #2 and #3, if the variable is already been assigned a value by the user, the extension will not reinitialize it.

ℹ️ If you're writing @Nested tests, see issues/8.

Minimum Requirements

  • Java 8

Contributing

This project is a volunteer effort. You are welcome to send pull requests, ask questions, or create issues.

Code of Conduct

This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code.

License

Copyright 2022 Abhijit Sarkar - Released under Apache License v2.0.