Use scalatra scalatest in the Java library: Quick Getting Started Guide
Use scalatra scalatest in the Java library: Quick Getting Started Guide
SCALATRA is a lightweight web framework based on SCALA programming language, which makes it easier to build a scalable RESTFUL API.The SCALATEST is one of the most popular test frameworks of the Scala community. It provides rich APIs and functions for writing clear and easy -to -read test code.
This article will introduce how to combine Scalatra and Scalaton to develop and test in the Java class library.
Step 1: Create a new scala class library project
First, we need to create a new SCALA library project.You can use your favorite IDE, such as Intellij IDEA or Eclipse to create a new SCALA project.Make sure to choose SCALA as your main programming language.
Step 2: Add scalatra and scalaton dependencies
In your project configuration file (such as Build.SBT), add scalatra and scalaton.
scala
libraryDependencies ++= Seq(
"org.scalatra" %% "scalatra" % "2.7.1",
"org.scalatra" %% "scalatra-scalatest" % "2.7.1" % Test
)
This will tell the construction system to use Scalatra and Scalaton during compilation and testing.
Step 3: Create a simple scalatra application
Next, we will create a simple SCALATRA application so that we can test in the subsequent steps.Create a new SCALA class in your project, named `ExampleApp`, and add the following code:
scala
import org.scalatra._
class ExampleApp extends ScalatraServlet {
get("/hello") {
"Hello, World!"
}
}
object Main extends App {
val app = new ExampleApp
app.start()
}
This application is just a simple Hello World example. When you access the `/Hello` path, it will return" Hello, World! ".
Step 4: Create a scalating test class
We will now write a test class to verify our scalatra applications.Create a new SCALA test class in your project, named `ExampleAppspec`, and add the following code:
scala
import org.scalatra.test.scalatest._
class ExampleAppSpec extends ScalatraFunSuite {
addServlet(classOf[ExampleApp], "/*")
test("GET /hello should return Hello, World!") {
get("/hello") {
status should equal(200)
body should equal("Hello, World!")
}
}
}
This test uses the `Scalatrafunsuosuite` characteristics of Scalaton, which provides many convenient methods to test the SCALATRA application test.The `addservlet` method is used to add our` ExampleApp` to the test environment.
Test method `get /Hello Should Return Hello, World!` Verified that when we access the ` /Hello` path, the returned response status code should be 200, and the returned response main content should be" Hello, World! ".
Step 5: Run test test
Finally, we can run our test to verify whether our Scalatra application is working as expected.Execute the test class `exampleappspec` in your IDE or terminal, you should see the message passed by the test.
Summarize
By combining Scalatra and Scalatest, we can easily develop and test the Java library.In this article, we introduced how to create a new Scala class library project, add Scalatra and Scalant dependencies, write a simple SCALATRA application, and write test classes to verify applications.I hope this fast entry guide can help you use Scalatra and Scalaton for development and testing in the Java class library!
Java code example:
import org.scalatra.ScalatraServlet;
public class ExampleApp extends ScalatraServlet {
protected void doGet() {
response().status(200);
response().body("Hello, World!");
}
}
import org.scalatra.test.scalatest.ScalatraFunSuite;
public class ExampleAppSpec extends ScalatraFunSuite {
static {
addServlet(ExampleApp.class, "/*");
}
public void testGetHello() {
get("/hello");
assertEquals(200, response().getStatus());
assertEquals("Hello, World!", response().getBody());
}
}
The above is a fast entry guide to use Scalatra Scalatest in the Java library.I hope this article can help you start using Scalatra and Scalaton for the development and testing of Java libraries.
