Unit Tests for Product Routes Part 1

Explore unit testing strategies for product routes in Scala HTTP APIs. Learn to handle requests for existing and non-existing products, create valid URIs, and validate status codes and response bodies. Understand the use of implicit JSON encoders and EntityDecoders in testing context.

We'll cover the following...

- Querying a non-existing product
- Querying an existing product

Scala

val emptyRepository: Repository[IO] = new TestRepository[IO](Seq.empty) 
val expectedStatusCode = Status.NotFound
s"return$expectedStatusCode"in{
    forAll("id") { id: ProductId =>
        Uri.fromString("/product/" + id.toString) match {
            case Left(_) => fail("Could not generate valid URI!")
            case Right(u) =>
                def service: HttpRoutes[IO] =
                    Router("/" -> new ProductRoutes(emptyRepository).routes)
                val response: IO[Response[IO]] = service.orNotFound.run(
                    Request(method = Method.GET, uri = u)
                )
                val result = response.unsafeRunSync
                result.status must be(expectedStatusCode)
                result.body.compile.toVector.unsafeRunSync must be(empty)
        }
    }
}

1.Introduction

2.Impure Implementation

3.Pure Implementation

4.Testing Impure Services

5.Testing Pure Services

6.Benchmarks

7.Documentation

8.Epilogue

Unit Tests for Product Routes Part 1

Querying a non-existing product