"bootique-jetty-junit5" - a test module for Jetty

[Andrus Adamchik]

Let's build a JUnit5 test module for Jetty, like we did for JDBC and Cayenne. It will have the following functionality:

• Disable all the existing connectors and provide a test connector to start on a dynamic port (see #98)
• Provide access to the test HTTP client.
• Help with common response assertions.

Compared to Bootique 1.1, this will provide YAML-free unit test configs, solve potential port conflicts and simplify checking test results.

Example:

// JettyTester provides a bunch of static methods and isn't itself
// a part of the JUnit lifecycle

@BQApp
static final BQRuntime app = Bootique.app("-s")
        .autoLoadModules()
        // override all app connectors with one test connector
        .module(JettyTester.moduleReplacingConnectors())
        .createRuntime();

@Test
public void test() {

    // obtain client without knowing the port
    Response r = JettyTester.getClient(app).request().get();

    JettyTester.assertOk(r)
        // simple assertions
        .assertContent("Hi!")
        // custom assertions... Can use Hamcrest, etc.
        .assertContent(c -> {
            assertNotNull(c);
            assertTrue(c.contains("Hi"));
        })
}