CommandLineBrowserRunnerTest.java

package com.google.jstestdriver.browser;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.List;

import junit.framework.TestCase;

import com.google.common.collect.Lists;
import com.google.jstestdriver.ProcessFactory;

public class CommandLineBrowserRunnerTest extends TestCase {
  public void testStartAndStop() throws Exception {
    final String browserPath = "/foo/bar";
    final String browserArgs = "--helloWorld";
    final String url = "htpp://localhost:42242";

    FakeProcessFactory processFactory = new FakeProcessFactory();
    CommandLineBrowserRunner runner =
        new CommandLineBrowserRunner(browserPath, browserArgs, processFactory, "not os x");

    runner.startBrowser(url);
    assertEquals(1, processFactory.processStubs.size());
    assertEquals(browserPath,
        processFactory.processStubs.get(0).commands[0]);
    assertEquals(Lists.newArrayList(new String[]{browserPath, browserArgs, url}),
        Lists.newArrayList(processFactory.processStubs.get(0).commands));
  }

  public void testNoArgs() throws Exception {
    final String browserPath = "/foo/bar";
    final String browserArgs = "";
    final String url = "htpp://localhost:42242";

    FakeProcessFactory processFactory = new FakeProcessFactory();
    CommandLineBrowserRunner runner =
        new CommandLineBrowserRunner(browserPath, browserArgs, processFactory, "not os x");

    runner.startBrowser(url);
    assertEquals(1, processFactory.processStubs.size());
    assertEquals(browserPath,
        processFactory.processStubs.get(0).commands[0]);
    assertEquals(url,
        processFactory.processStubs.get(0).commands[1]);
  }

  public void testUrlParam() throws Exception {
    final String browserPath = "/foo/bar";
    final String browserArgs = "--app=%s";
    final String url = "htpp://localhost:42242";

    FakeProcessFactory processFactory = new FakeProcessFactory();
    CommandLineBrowserRunner runner =
        new CommandLineBrowserRunner(browserPath, browserArgs, processFactory, "not os x");

    runner.startBrowser(url);
    assertEquals(1, processFactory.processStubs.size());
    assertEquals(browserPath,
        processFactory.processStubs.get(0).commands[0]);
    assertEquals("--app=" + url,
        processFactory.processStubs.get(0).commands[1]);
  }

  private final class FakeProcessFactory implements ProcessFactory {
    public List<ProcessStub> processStubs = Lists.newLinkedList();

    @SuppressWarnings("unused")
    public Process start(String... commands) throws IOException {
      ProcessStub processStub = new ProcessStub(commands);
      processStubs.add(processStub);
      return processStub;
    }
  }

  private final static class ProcessStub extends Process {

    public final String[] commands;

    public ProcessStub(String[] commands) {
      this.commands = commands;
    }
    @Override
    public void destroy() {
    }

    @Override
    public int exitValue() {
      return 0;
    }

    @Override
    public InputStream getErrorStream() {
      return null;
    }

    @Override
    public InputStream getInputStream() {
      return null;
    }

    @Override
    public OutputStream getOutputStream() {
      return null;
    }

    @Override
    public int waitFor() {
      return 0;
    }
    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + Arrays.hashCode(commands);
      return result;
    }
    @Override
    public boolean equals(Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      ProcessStub other = (ProcessStub) obj;
      if (!Arrays.equals(commands, other.commands))
        return false;
      return true;
    }
    @Override
    public String toString() {
      return String.format("%s(%s)", getClass().getSimpleName(), Arrays.toString(commands));
    }
  }
}