Pact Sample

PactSample.kt

package me.aartikov.packtest

import au.com.dius.pact.consumer.ConsumerPactTestMk2
import au.com.dius.pact.consumer.MockServer
import au.com.dius.pact.consumer.dsl.PactDslJsonBody
import au.com.dius.pact.consumer.dsl.PactDslWithProvider
import au.com.dius.pact.model.RequestResponsePact
import com.google.gson.Gson
import okhttp3.OkHttpClient
import okhttp3.Request
import org.junit.Assert

data class User(val firstName: String, val lastName: String, val age: Int)

class UserService(private val baseUrl: String) {
    fun getUser(): User {
        val client = OkHttpClient()
        val request = Request.Builder()
                .url("$baseUrl/user")
                .build()

        client.newCall(request).execute().use {
            val response = it.body()?.string().orEmpty()
            return Gson().fromJson(response, User::class.java)
        }
    }
}

class GetUserContractTest : ConsumerPactTestMk2() {
    override fun providerName(): String = "IngoMobile Service"
    override fun consumerName(): String = "IngoMobile Android"

    override fun createPact(builder: PactDslWithProvider): RequestResponsePact {
        val body = PactDslJsonBody()
                .stringType("firstName", "John")
                .stringType("lastName", "Smith")
                .integerType("age", 37)

        return builder.uponReceiving("Get user")
                .path("/user")
                .method("GET")
                .willRespondWith()
                .status(200)
                .body(body)
                .toPact()
    }

    override fun runTest(mockServer: MockServer) {
        val userService = UserService(mockServer.getUrl())
        val user = userService.getUser()
        val expectedUser = User("John", "Smith", 37)
        Assert.assertEquals(user, expectedUser)
    }
}