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LoggerTest.java
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/*
* Copyright 2013 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package feign;
import com.google.common.base.Joiner;
import com.google.mockwebserver.MockResponse;
import com.google.mockwebserver.MockWebServer;
import dagger.Provides;
import feign.codec.Encoder;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import javax.inject.Named;
import javax.inject.Singleton;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Pattern;
import static dagger.Provides.Type.SET;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
@Test
public class LoggerTest {
Logger logger = new Logger() {
@Override protected void log(String configKey, String format, Object... args) {
messages.add(methodTag(configKey) + String.format(format, args));
}
};
List<String> messages = new ArrayList<String>();
@BeforeMethod void clear() {
messages.clear();
}
interface SendsStuff {
@RequestLine("POST /")
@Headers("Content-Type: application/json")
@Body("%7B\"customer_name\": \"{customer_name}\", \"user_name\": \"{user_name}\", \"password\": \"{password}\"%7D")
String login(
@Named("customer_name") String customer,
@Named("user_name") String user, @Named("password") String password);
}
@DataProvider(name = "levelToOutput")
public Object[][] levelToOutput() {
Object[][] data = new Object[4][2];
data[0][0] = Logger.Level.NONE;
data[0][1] = Arrays.<String>asList();
data[1][0] = Logger.Level.BASIC;
data[1][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)"
);
data[2][0] = Logger.Level.HEADERS;
data[2][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] Content-Length: 3",
"\\[SendsStuff#login\\] <--- END HTTP \\(3-byte body\\)"
);
data[3][0] = Logger.Level.FULL;
data[3][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ",
"\\[SendsStuff#login\\] \\{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"\\}",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] Content-Length: 3",
"\\[SendsStuff#login\\] ",
"\\[SendsStuff#login\\] foo",
"\\[SendsStuff#login\\] <--- END HTTP \\(3-byte body\\)"
);
return data;
}
@Test(dataProvider = "levelToOutput")
public void levelEmits(final Logger.Level logLevel, List<String> expectedMessages) throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
SendsStuff api = Feign.create(SendsStuff.class, "http://localhost:" + server.getUrl("").getPort(),
new DefaultModule(logger, logLevel));
api.login("netflix", "denominator", "password");
assertEquals(messages.size(), expectedMessages.size());
for (int i = 0; i < messages.size(); i++) {
assertTrue(messages.get(i).matches(expectedMessages.get(i)), messages.get(i));
}
assertEquals(new String(server.takeRequest().getBody()),
"{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"}");
} finally {
server.shutdown();
}
}
static @dagger.Module(overrides = true, library = true) class DefaultModule {
final Logger logger;
final Logger.Level logLevel;
DefaultModule(Logger logger, Logger.Level logLevel) {
this.logger = logger;
this.logLevel = logLevel;
}
@Provides(type = SET) Encoder defaultEncoder() {
return new Encoder.Text<Object>() {
@Override public String encode(Object object) {
return object.toString();
}
};
}
@Provides @Singleton Logger logger() {
return logger;
}
@Provides @Singleton Logger.Level level() {
return logLevel;
}
}
@DataProvider(name = "levelToReadTimeoutOutput")
public Object[][] levelToReadTimeoutOutput() {
Object[][] data = new Object[4][2];
data[0][0] = Logger.Level.NONE;
data[0][1] = Arrays.<String>asList();
data[1][0] = Logger.Level.BASIC;
data[1][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] <--- ERROR SocketTimeoutException: Read timed out \\([0-9]+ms\\)"
);
data[2][0] = Logger.Level.HEADERS;
data[2][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] Content-Length: 3",
"\\[SendsStuff#login\\] <--- ERROR SocketTimeoutException: Read timed out \\([0-9]+ms\\)"
);
data[3][0] = Logger.Level.FULL;
data[3][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://localhost:[0-9]+/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ",
"\\[SendsStuff#login\\] \\{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"\\}",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- HTTP/1.1 200 OK \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] Content-Length: 3",
"\\[SendsStuff#login\\] ",
"\\[SendsStuff#login\\] <--- ERROR SocketTimeoutException: Read timed out \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] java.net.SocketTimeoutException: Read timed out.*",
"\\[SendsStuff#login\\] <--- END ERROR"
);
return data;
}
@dagger.Module(overrides = true, library = true)
static class LessReadTimeoutModule {
@Provides Request.Options lessReadTimeout() {
return new Request.Options(10 * 1000, 50);
}
}
@Test(dataProvider = "levelToReadTimeoutOutput")
public void readTimeoutEmits(final Logger.Level logLevel, List<String> expectedMessages) throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBytesPerSecond(1).setBody("foo"));
server.play();
try {
SendsStuff api = Feign.create(SendsStuff.class, "http://localhost:" + server.getUrl("").getPort(),
new LessReadTimeoutModule(), new DefaultModule(logger, logLevel));
api.login("netflix", "denominator", "password");
fail();
} catch (FeignException e) {
assertMessagesMatch(expectedMessages);
assertEquals(new String(server.takeRequest().getBody()),
"{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"}");
} finally {
server.shutdown();
}
}
@DataProvider(name = "levelToUnknownHostOutput")
public Object[][] levelToUnknownHostOutput() {
Object[][] data = new Object[4][2];
data[0][0] = Logger.Level.NONE;
data[0][1] = Arrays.<String>asList();
data[1][0] = Logger.Level.BASIC;
data[1][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://robofu.abc/ HTTP/1.1",
"\\[SendsStuff#login\\] <--- ERROR UnknownHostException: robofu.abc \\([0-9]+ms\\)"
);
data[2][0] = Logger.Level.HEADERS;
data[2][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://robofu.abc/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- ERROR UnknownHostException: robofu.abc \\([0-9]+ms\\)"
);
data[3][0] = Logger.Level.FULL;
data[3][1] = Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://robofu.abc/ HTTP/1.1",
"\\[SendsStuff#login\\] Content-Type: application/json",
"\\[SendsStuff#login\\] Content-Length: 80",
"\\[SendsStuff#login\\] ",
"\\[SendsStuff#login\\] \\{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"\\}",
"\\[SendsStuff#login\\] ---> END HTTP \\(80-byte body\\)",
"\\[SendsStuff#login\\] <--- ERROR UnknownHostException: robofu.abc \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] java.net.UnknownHostException: robofu.abc.*",
"\\[SendsStuff#login\\] <--- END ERROR"
);
return data;
}
@dagger.Module(overrides = true, library = true)
static class DontRetryModule {
@Provides Retryer retryer() {
return new Retryer() {
@Override public void continueOrPropagate(RetryableException e) {
throw e;
}
};
}
}
@Test(dataProvider = "levelToUnknownHostOutput")
public void unknownHostEmits(final Logger.Level logLevel, List<String> expectedMessages) throws IOException, InterruptedException {
try {
SendsStuff api = Feign.create(SendsStuff.class, "http://robofu.abc",
new DontRetryModule(), new DefaultModule(logger, logLevel));
api.login("netflix", "denominator", "password");
fail();
} catch (FeignException e) {
assertMessagesMatch(expectedMessages);
}
}
@dagger.Module(overrides = true, library = true)
static class RetryOnceModule {
@Provides Retryer retryer() {
return new Retryer() {
boolean retried;
@Override public void continueOrPropagate(RetryableException e) {
if (!retried) {
retried = true;
return;
}
throw e;
}
};
}
}
public void retryEmits() throws IOException, InterruptedException {
try {
SendsStuff api = Feign.create(SendsStuff.class, "http://robofu.abc",
new RetryOnceModule(), new DefaultModule(logger, Logger.Level.BASIC));
api.login("netflix", "denominator", "password");
fail();
} catch (FeignException e) {
assertMessagesMatch(Arrays.asList(
"\\[SendsStuff#login\\] ---> POST http://robofu.abc/ HTTP/1.1",
"\\[SendsStuff#login\\] <--- ERROR UnknownHostException: robofu.abc \\([0-9]+ms\\)",
"\\[SendsStuff#login\\] ---> RETRYING",
"\\[SendsStuff#login\\] ---> POST http://robofu.abc/ HTTP/1.1",
"\\[SendsStuff#login\\] <--- ERROR UnknownHostException: robofu.abc \\([0-9]+ms\\)"
));
}
}
private void assertMessagesMatch(List<String> expectedMessages) {
assertEquals(messages.size(), expectedMessages.size());
for (int i = 0; i < messages.size(); i++) {
assertTrue(Pattern.compile(expectedMessages.get(i), Pattern.DOTALL).matcher(messages.get(i)).matches(),
"Didn't match at message " + (i + 1) + ":\n" + Joiner.on('\n').join(messages));
}
}
}