package com.proofpoint.http.client;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableListMultimap;
import com.proofpoint.http.client.testing.TestingResponse;
import com.proofpoint.json.JsonCodec;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.io.IOException;
import java.io.InputStream;
import static com.google.common.base.Charsets.UTF_8;
import static com.google.common.net.MediaType.JSON_UTF_8;
import static com.google.common.net.MediaType.PLAIN_TEXT_UTF_8;
import static com.proofpoint.http.client.FullJsonResponseHandler.JsonResponse;
import static com.proofpoint.http.client.FullJsonResponseHandler.createFullJsonResponseHandler;
import static com.proofpoint.http.client.HttpStatus.INTERNAL_SERVER_ERROR;
import static com.proofpoint.http.client.HttpStatus.OK;
import static com.proofpoint.http.client.testing.TestingResponse.contentType;
import static com.proofpoint.http.client.testing.TestingResponse.mockResponse;
import static com.proofpoint.testing.Assertions.assertInstanceOf;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyInt;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertNotSame;
import static org.testng.Assert.assertNull;
import static org.testng.Assert.assertSame;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
@SuppressWarnings("ThrowableResultOfMethodCallIgnored")
public class TestFullJsonResponseHandler
{
private JsonCodec<User> codec;
private FullJsonResponseHandler<User> handler;
@BeforeMethod
public void setUp()
{
codec = JsonCodec.jsonCodec(User.class);
handler = createFullJsonResponseHandler(codec);
}
@Test
public void testValidJson()
{
User user = new User("Joe", 25);
String json = codec.toJson(user);
JsonResponse<User> response = handler.handle(null, mockResponse(OK, JSON_UTF_8, json));
assertTrue(response.hasValue());
assertEquals(response.getJsonBytes(), json.getBytes(UTF_8));
assertEquals(response.getJson(), json);
assertEquals(response.getValue().getName(), user.getName());
assertEquals(response.getValue().getAge(), user.getAge());
assertNotSame(response.getJson(), response.getJson());
assertNotSame(response.getJsonBytes(), response.getJsonBytes());
assertNotSame(response.getResponseBytes(), response.getResponseBytes());
assertNotSame(response.getResponseBody(), response.getResponseBody());
assertEquals(response.getResponseBytes(), response.getJsonBytes());
assertEquals(response.getResponseBody(), response.getJson());
}
@Test
public void testInvalidJson()
{
String json = "{\"age\": \"foo\"}";
JsonResponse<User> response = handler.handle(null, mockResponse(OK, JSON_UTF_8, json));
assertFalse(response.hasValue());
assertEquals(response.getException().getMessage(),
"Unable to create " + User.class + " from JSON response:\n" + json);
assertInstanceOf(response.getException().getCause(), IllegalArgumentException.class);
assertEquals(response.getException().getCause().getMessage(), "Invalid [simple type, class com.proofpoint.http.client.TestFullJsonResponseHandler$User] json bytes");
assertEquals(response.getJson(), json);
assertEquals(response.getResponseBytes(), response.getJsonBytes());
assertEquals(response.getResponseBody(), response.getJson());
}
@Test
public void testInvalidJsonGetValue()
{
String json = "{\"age\": \"foo\"}";
JsonResponse<User> response = handler.handle(null, mockResponse(OK, JSON_UTF_8, json));
try {
response.getValue();
fail("expected exception");
}
catch (IllegalStateException e) {
assertEquals(e.getMessage(), "Response does not contain a JSON value");
assertEquals(e.getCause(), response.getException());
assertEquals(response.getJsonBytes(), json.getBytes(UTF_8));
assertEquals(response.getJson(), json);
assertEquals(response.getResponseBytes(), response.getJsonBytes());
assertEquals(response.getResponseBody(), response.getJson());
}
}
@Test
public void testNonJsonResponse()
{
JsonResponse<User> response = handler.handle(null, mockResponse(OK, PLAIN_TEXT_UTF_8, "hello"));
assertFalse(response.hasValue());
assertNull(response.getException());
assertNull(response.getJson());
assertNull(response.getJsonBytes());
assertEquals(response.getResponseBytes(), "hello".getBytes(UTF_8));
assertEquals(response.getResponseBody(), "hello");
}
@Test
public void testMissingContentType()
{
JsonResponse<User> response = handler.handle(null,
new TestingResponse(OK, ImmutableListMultimap.<String, String>of(), "hello".getBytes(UTF_8)));
assertFalse(response.hasValue());
assertNull(response.getException());
assertNull(response.getJson());
assertNull(response.getJsonBytes());
assertEquals(response.getResponseBytes(), "hello".getBytes(UTF_8));
assertEquals(response.getResponseBody(), "hello");
assertTrue(response.getHeaders().isEmpty());
}
@Test
public void testJsonErrorResponse()
{
String json = "{\"error\": true}";
JsonResponse<User> response = handler.handle(null, mockResponse(INTERNAL_SERVER_ERROR, JSON_UTF_8, json));
assertTrue(response.hasValue());
assertEquals(response.getJson(), json);
assertEquals(response.getJsonBytes(), json.getBytes(UTF_8));
assertNull(response.getValue().getName());
assertEquals(response.getValue().getAge(), 0);
assertEquals(response.getResponseBytes(), response.getJsonBytes());
assertEquals(response.getResponseBody(), response.getJson());
}
@Test
public void testJsonReadException()
throws IOException
{
InputStream inputStream = mock(InputStream.class);
IOException expectedException = new IOException("test exception");
when(inputStream.read()).thenThrow(expectedException);
when(inputStream.read(any(byte[].class))).thenThrow(expectedException);
when(inputStream.read(any(byte[].class), anyInt(), anyInt())).thenThrow(expectedException);
try {
handler.handle(null, new TestingResponse(OK, contentType(JSON_UTF_8), inputStream));
fail("expected exception");
}
catch (RuntimeException e) {
assertEquals(e.getMessage(), "Error reading response from server");
assertSame(e.getCause(), expectedException);
}
}
static class User
{
private final String name;
private final int age;
@JsonCreator
public User(@JsonProperty("name") String name, @JsonProperty("age") int age)
{
this.name = name;
this.age = age;
}
@JsonProperty
public String getName()
{
return name;
}
@JsonProperty
public int getAge()
{
return age;
}
}
}