/*
* Copyright 2013-present Facebook, 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 com.facebook.buck.httpserver;
import static org.easymock.EasyMock.expect;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import com.facebook.buck.util.trace.BuildTraces;
import com.google.common.base.Charsets;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter; // NOPMD required by API
import java.io.StringWriter;
import java.util.Arrays;
import java.util.regex.Matcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.easymock.EasyMockSupport;
import org.eclipse.jetty.server.Request;
import org.junit.Test;
// TODO(simons): Use a FakeProjectFilesystem throughout.
public class TraceDataHandlerTest extends EasyMockSupport {
@Test
public void testIdPattern() {
Matcher matcher = TraceDataHandler.ID_PATTERN.matcher("/4hSQpLBb");
assertTrue(matcher.matches());
assertEquals("4hSQpLBb", matcher.group(1));
}
@Test
public void testCallbackPattern() {
assertTrue(TraceDataHandler.CALLBACK_PATTERN.matcher("callback").matches());
assertTrue(TraceDataHandler.CALLBACK_PATTERN.matcher("my.callback").matches());
assertFalse(TraceDataHandler.CALLBACK_PATTERN.matcher("(createCallback())").matches());
}
@Test
public void testHandleGet() throws IOException, ServletException {
Request baseRequest = createMock(Request.class);
expect(baseRequest.getMethod()).andReturn("GET");
expect(baseRequest.getPathInfo()).andReturn("/abcdef");
expect(baseRequest.getParameter("callback")).andReturn(null);
baseRequest.setHandled(true);
HttpServletRequest request = createMock(HttpServletRequest.class);
HttpServletResponse response = createMock(HttpServletResponse.class);
response.setStatus(200);
response.setContentType("application/javascript; charset=utf-8");
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter); // NOPMD required by API
expect(response.getWriter()).andReturn(printWriter);
response.flushBuffer();
BuildTraces buildTraces = createMock(BuildTraces.class);
Iterable<InputStream> traces =
Arrays.asList(new ByteArrayInputStream("{\"foo\":\"bar\"}".getBytes(Charsets.UTF_8)));
expect(buildTraces.getInputsForTraces("abcdef")).andReturn(traces);
TraceDataHandler traceDataHandler = new TraceDataHandler(buildTraces);
replayAll();
traceDataHandler.handle("/trace/abcdef", baseRequest, request, response);
verifyAll();
assertEquals("[{\"foo\":\"bar\"}]", stringWriter.toString());
}
@Test
public void testHandleGetWithMultipleTrace() throws IOException, ServletException {
Request baseRequest = createMock(Request.class);
expect(baseRequest.getMethod()).andReturn("GET");
expect(baseRequest.getPathInfo()).andReturn("/abcdef");
expect(baseRequest.getParameter("callback")).andReturn(null);
baseRequest.setHandled(true);
HttpServletRequest request = createMock(HttpServletRequest.class);
HttpServletResponse response = createMock(HttpServletResponse.class);
response.setStatus(200);
response.setContentType("application/javascript; charset=utf-8");
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter); // NOPMD required by API
expect(response.getWriter()).andReturn(printWriter);
response.flushBuffer();
BuildTraces buildTraces = createMock(BuildTraces.class);
Iterable<InputStream> traces =
Arrays.asList(
new ByteArrayInputStream("{\"foo\":\"bar\"}".getBytes(Charsets.UTF_8)),
new ByteArrayInputStream("{\"baz\":\"blech\"}".getBytes(Charsets.UTF_8)));
expect(buildTraces.getInputsForTraces("abcdef")).andReturn(traces);
TraceDataHandler traceDataHandler = new TraceDataHandler(buildTraces);
replayAll();
traceDataHandler.handle("/trace/abcdef", baseRequest, request, response);
verifyAll();
assertEquals("[{\"foo\":\"bar\"},{\"baz\":\"blech\"}]", stringWriter.toString());
}
@Test
public void testHandleGetWithCallback() throws IOException, ServletException {
Request baseRequest = createMock(Request.class);
expect(baseRequest.getMethod()).andReturn("GET");
expect(baseRequest.getPathInfo()).andReturn("/abcdef");
expect(baseRequest.getParameter("callback")).andReturn("my.callback");
baseRequest.setHandled(true);
HttpServletRequest request = createMock(HttpServletRequest.class);
HttpServletResponse response = createMock(HttpServletResponse.class);
response.setStatus(200);
response.setContentType("application/javascript; charset=utf-8");
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter); // NOPMD required by API
expect(response.getWriter()).andReturn(printWriter);
response.flushBuffer();
BuildTraces buildTraces = createMock(BuildTraces.class);
Iterable<InputStream> traces =
Arrays.asList(new ByteArrayInputStream("{\"foo\":\"bar\"}".getBytes(Charsets.UTF_8)));
expect(buildTraces.getInputsForTraces("abcdef")).andReturn(traces);
TraceDataHandler traceDataHandler = new TraceDataHandler(buildTraces);
replayAll();
traceDataHandler.handle("/trace/abcdef?callback=my.callback", baseRequest, request, response);
verifyAll();
assertEquals("my.callback([{\"foo\":\"bar\"}]);\n", stringWriter.toString());
}
@Test
public void testHandleGetWithMultipleTraceCallback() throws IOException, ServletException {
Request baseRequest = createMock(Request.class);
expect(baseRequest.getMethod()).andReturn("GET");
expect(baseRequest.getPathInfo()).andReturn("/abcdef");
expect(baseRequest.getParameter("callback")).andReturn("my.callback");
baseRequest.setHandled(true);
HttpServletRequest request = createMock(HttpServletRequest.class);
HttpServletResponse response = createMock(HttpServletResponse.class);
response.setStatus(200);
response.setContentType("application/javascript; charset=utf-8");
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter); // NOPMD required by API
expect(response.getWriter()).andReturn(printWriter);
response.flushBuffer();
BuildTraces buildTraces = createMock(BuildTraces.class);
Iterable<InputStream> traces =
Arrays.asList(
new ByteArrayInputStream("{\"foo\":\"bar\"}".getBytes(Charsets.UTF_8)),
new ByteArrayInputStream("{\"baz\":\"blech\"}".getBytes(Charsets.UTF_8)));
expect(buildTraces.getInputsForTraces("abcdef")).andReturn(traces);
TraceDataHandler traceDataHandler = new TraceDataHandler(buildTraces);
replayAll();
traceDataHandler.handle("/trace/abcdef?callback=my.callback", baseRequest, request, response);
verifyAll();
assertEquals(
"my.callback([{\"foo\":\"bar\"},{\"baz\":\"blech\"}]);\n", stringWriter.toString());
}
}