Hamkrest

Installation (Gradle)

dependencies {
    implementation(platform("org.http4k:http4k-bom:5.30.0.0"))
    implementation("org.http4k:http4k-testing-hamkrest")
}

About

A set of Hamkrest matchers for use when testing http4k apps.

Code

package guide.reference.hamkrest

import com.natpryce.hamkrest.and
import com.natpryce.hamkrest.assertion.assertThat
import com.natpryce.hamkrest.equalTo
import org.http4k.core.Body
import org.http4k.core.ContentType
import org.http4k.core.Method.POST
import org.http4k.core.Request
import org.http4k.core.Response
import org.http4k.core.Status.Companion.OK
import org.http4k.hamkrest.hasBody
import org.http4k.hamkrest.hasHeader
import org.http4k.hamkrest.hasQuery
import org.http4k.hamkrest.hasStatus
import org.http4k.lens.string

fun main() {

    val request = Request(POST, "/?a=b").body("http4k is cool").header("my header", "a value")

    // status
    assertThat(Response(OK), hasStatus(OK))

    // query
    assertThat(request, hasQuery("a", "b"))

    // header
    assertThat(request, hasHeader("my header", "a value"))

    // body
    assertThat(request, hasBody("http4k is cool"))
    assertThat(
        request,
        hasBody(Body.string(ContentType.TEXT_HTML).toLens(), equalTo("http4k is cool"))
    )

    // composite
    assertThat(request, hasBody("http4k is cool").and(hasQuery("a", "b")))
}