ZinvoiceHttpClientTest.java

package io.konik.sdk.http;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.api.client.http.*;
import com.google.api.client.json.JsonObjectParser;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.testing.http.MockHttpTransport;
import com.google.api.client.testing.http.MockLowLevelHttpRequest;
import com.google.api.client.testing.http.MockLowLevelHttpResponse;
import io.konik.sdk.ZinvoiceApiConfig;
import org.junit.Test;

import java.io.IOException;
import java.util.Map;
import java.util.UUID;

import static org.assertj.core.api.Assertions.assertThat;

public class ZinvoiceHttpClientTest {

	private static final String API_KEY = UUID.randomUUID().toString();
	private static final String DESTINATION_URL = "http://localhost";

	private ZinvoiceApiConfig apiConfig = new ZinvoiceApiConfig(API_KEY, DESTINATION_URL);

	private HttpTransport httpTransport = new MockHttpTransport() {
		@Override
		public LowLevelHttpRequest buildRequest(String method, String url) throws IOException {
			return new MockLowLevelHttpRequest() {
				@Override
				public LowLevelHttpResponse execute() throws IOException {
					String apiKey = this.getFirstHeaderValue("API-KEY");

					MockLowLevelHttpResponse response = new MockLowLevelHttpResponse();
					response.setStatusCode(200);
					response.setContentType("application/json");
					response.setContent("{\"apiKey\": \"" + apiKey + "\"}");
					return response;
				}
			};
		}
	};

	private HttpRequestFactory httpRequestFactory = httpTransport.createRequestFactory(new HttpRequestInitializer() {
		@Override
		public void initialize(HttpRequest request) throws IOException {
			request.setParser(new JsonObjectParser(new JacksonFactory()));
		}
	});

	private ObjectMapper objectMapper = new ObjectMapper();

	private ZinvoiceHttpClient zinvoiceHttpClient = new ZinvoiceHttpClient(apiConfig, httpRequestFactory, objectMapper);

	@Test
	@SuppressWarnings("unchecked")
	public void shouldUseApiKeyAsARequestHeader() throws IOException {
		//when:
		Map<String, String> response = zinvoiceHttpClient.get("/lorem/ipsum", Map.class);

		//then:
		assertThat(response.get("apiKey")).isEqualTo(apiConfig.getApiKey());
	}
}