RestInvoicesApiTest.java

package io.konik.sdk.invoices;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.LowLevelHttpRequest;
import com.google.api.client.http.LowLevelHttpResponse;
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 io.konik.sdk.http.ZinvoiceHttpClient;
import org.junit.Test;
import org.unitils.thirdparty.org.apache.commons.io.IOUtils;

import java.io.IOException;
import java.io.StringWriter;
import java.math.BigDecimal;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.UUID;

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

public class RestInvoicesApiTest {

	private final ZinvoiceApiConfig apiConfig = new ZinvoiceApiConfig(UUID.randomUUID().toString(), "http://localhost");

	private final ObjectMapper objectMapper = new ObjectMapper();

	private final ZinvoiceHttpClient outboxMockHttpClient = new ZinvoiceHttpClient(apiConfig, mockHttpRequestFactory(new MockLowLevelHttpRequest(){
		@Override
		public LowLevelHttpResponse execute() throws IOException {
			StringWriter writer = new StringWriter();
			IOUtils.copy(getClass().getResourceAsStream("/json/RestInvoicesApiTest_outbox.json"), writer, "UTF-8");
			String json = writer.toString();

			MockLowLevelHttpResponse response = new MockLowLevelHttpResponse();
			response.setStatusCode(200);
			response.setContentType("application/json");
			response.setContent(json);
			return response;
		}
	}), objectMapper);

	private final ZinvoiceHttpClient inboxMockHttpClient = new ZinvoiceHttpClient(apiConfig, mockHttpRequestFactory(new MockLowLevelHttpRequest(){
		@Override
		public LowLevelHttpResponse execute() throws IOException {
			StringWriter writer = new StringWriter();
			IOUtils.copy(getClass().getResourceAsStream("/json/RestInvoicesApiTest_inbox.json"), writer, "UTF-8");
			String json = writer.toString();

			MockLowLevelHttpResponse response = new MockLowLevelHttpResponse();
			response.setStatusCode(200);
			response.setContentType("application/json");
			response.setContent(json);
			return response;
		}
	}), objectMapper);


	private HttpRequestFactory mockHttpRequestFactory(final MockLowLevelHttpRequest request) {
		return new MockHttpTransport() {
			@Override
			public LowLevelHttpRequest buildRequest(String method, String url) throws IOException {
				return request;
			}
		}.createRequestFactory();
	}

	@Test
	public void shouldReturn4ItemsInOutbox() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(outboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.outbox();

		//then:
		assertThat(response).hasSize(4);
	}

	@Test
	public void shouldReturnCorrectFirstInboxElement() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(outboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.outbox();

		//then:
		assertThat(response.get(0).getId()).isEqualTo("e7508df79bc24ceb9f8ac8f98e718e67");
	}

	@Test
	public void shouldParseStatusEnumCorrectly() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(outboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.outbox();

		//then:
		assertThat(response.get(0).getStatus()).isEqualTo("PRINTED");
	}

	@Test
	public void shouldParseCreatedDateCorrectly() throws ParseException {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(outboxMockHttpClient);
		DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
		Date expectedCreatedDate = dateFormat.parse("2015-07-31 09:12");

		//when:
		List<InvoicesListElement> response = invoicesApi.outbox();

		//then:
		assertThat(response.get(0).getCreatedDate()).isEqualTo(expectedCreatedDate);
	}

	@Test
	public void shouldParsePerformanceDateCorrectly() throws ParseException {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(outboxMockHttpClient);
		DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
		Date expectedPerformanceDate = dateFormat.parse("2015-07-31");

		//when:
		List<InvoicesListElement> response = invoicesApi.outbox();

		//then:
		assertThat(response.get(0).getPerformanceDate()).isEqualTo(expectedPerformanceDate);
	}

	@Test
	public void shouldReturn4ItemsInInbox() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(inboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.inbox();

		//then:
		assertThat(response).hasSize(3);
	}

	@Test
	public void shouldParseREJECTEDStatusForTheFirstInvoiceInInbox() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(inboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.inbox();

		//then:
		assertThat(response.get(0).getStatus()).isEqualTo("REJECTED");
	}

	@Test
	public void shouldParseAmountCorrectly() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(inboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.inbox();

		//then:
		assertThat(response.get(0).getAmount()).isEqualTo(BigDecimal.valueOf(235.62));
	}

	@Test
	public void shouldParseCurrencyCorrectly() {
		//given:
		InvoicesApi invoicesApi = new RestInvoicesApi(inboxMockHttpClient);

		//when:
		List<InvoicesListElement> response = invoicesApi.inbox();

		//then:
		assertThat(response.get(0).getCurrency()).isEqualTo("EUR");
	}
}