How to write a unit test case in the ScalaTestPlus PLAY framework
How to write a unit test case in the ScalaTestPlus PLAY framework
SCALATESTPLUS is a widely used test framework in SCALA programming language, which can be used to write various types of test cases.Its PLAY plug -in (Scientplus Play) is a expansion designed for the PLAY framework, which can help developers write and run the unit test for Play applications.
To write unit test cases in the ScalaTestPlus Play framework, you need to complete the following steps:
1. Add dependencies: First, add scaladplus play dependencies in the construction files of your project (such as Build.SBT).The example code is as follows:
scala
libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "5.1.0" % Test
2. Create a test class: Create a new SCALA class to write your unit test case.The example code is as follows:
scala
import org.scalatestplus.play._
import play.api.test._
import play.api.test.Helpers._
class MyUnitTestSpec extends PlaySpec with OneAppPerTest {
"MyUnitTest" should {
"return 200 and valid content" in {
val request = FakeRequest(GET, "/my-endpoint")
val result = route(app, request).get
status(result) mustBe OK
contentAsString(result) must include("Valid Content")
}
"redirect to login when not authenticated" in {
val request = FakeRequest(GET, "/restricted-endpoint")
val result = route(app, request).get
status(result) mustBe SEE_OTHER
redirectLocation(result) mustBe Some("/login")
}
}
}
In the above sample code, we created a test class called `myunittestspec`, and extended the` PlaySpec` and `OneAppPERTEST` characteristics.These two traits provide functions and functions commonly used in the Scaladplus Play framework, such as `FAKEREQUEST` and` Route`.
3. Write test case: In the test class, use the `Should` block and the corresponding test description to write test cases.The two test cases in the example code verify the successful response and redirect function of an API, respectively.
4. Run test: Now, you can run your unit test case.You can use the commonly used SCALA to build tools (such as SBT) to run the test.In the command line, type the `test` command to perform all unit tests.
This is the basic step of writing unit test cases in the ScalatonStplus Play framework.By using this framework, you can easily perform unit testing to ensure that all parts of your Play application work as expected.I wish you a pleasant test case!
Java code example:
import static play.test.Helpers.fakeRequest;
import static play.test.Helpers.route;
import static play.mvc.Http.Status.OK;
import static play.mvc.Http.Status.SEE_OTHER;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import play.mvc.Result;
public class MyUnitTest {
@Test
public void testResponseContent() {
// Create a fake request
play.mvc.Http.RequestBuilder request = fakeRequest("GET", "/my-endpoint");
// Send the request and get the result
Result result = route(request);
// Validate the response
assertEquals(OK, result.status());
assertTrue(contentAsString(result).contains("Valid Content"));
}
@Test
public void testRedirectWhenNotAuthenticated() {
// Create a fake request
play.mvc.Http.RequestBuilder request = fakeRequest("GET", "/restricted-endpoint");
// Send the request and get the result
Result result = route(request);
// Validate the response
assertEquals(SEE_OTHER, result.status());
assertTrue(redirectLocation(result).contains("/login"));
}
}
In the above sample code, we use the `Play.test.helpers` class provided by the PLAY framework to create a fake request and acquisition result.When asserting, we use the Junit's `Assert` class to verify the results.These test cases have the same logic and test goals as the use cases in the previous SCALA examples.
This is some examples and code descriptions of the testing cases in the ScalantPlus Play framework.These example code should help you start writing and running your own unit test cases.I wish you success when using this framework!
