1 files changed, 108 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/util/CommandUtilsTest.java b/src/test/java/com/google/devtools/build/lib/util/CommandUtilsTest.java
new file mode 100644
index 0000000000..c7639a2be4
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/util/CommandUtilsTest.java
@@ -0,0 +1,108 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// 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.google.devtools.build.lib.util;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import com.google.common.collect.Maps;
+import com.google.devtools.build.lib.shell.Command;
+import com.google.devtools.build.lib.shell.CommandException;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.File;
+import java.util.Map;
+
+@RunWith(JUnit4.class)
+public class CommandUtilsTest {
+
+  @Test
+  public void longCommand() throws Exception {
+    String[] args = new String[40];
+    args[0] = "this_command_will_not_be_found";
+    for (int i = 1; i < args.length; i++) {
+      args[i] = "arg" + i;
+    }
+    Map<String, String> env = Maps.newTreeMap();
+    env.put("PATH", "/usr/bin:/bin:/sbin");
+    env.put("FOO", "foo");
+    File directory = new File("/tmp");
+    try {
+      new Command(args, env, directory).execute();
+      fail();
+    } catch (CommandException exception) {
+      String message = CommandUtils.describeCommandError(false, exception.getCommand());
+      String verboseMessage = CommandUtils.describeCommandError(true, exception.getCommand());
+      assertEquals(
+          "error executing command this_command_will_not_be_found arg1 "
+          + "arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 "
+          + "arg11 arg12 arg13 arg14 arg15 arg16 arg17 arg18 "
+          + "arg19 arg20 arg21 arg22 arg23 arg24 arg25 arg26 "
+          + "arg27 arg28 arg29 arg30 "
+          + "... (remaining 9 argument(s) skipped)",
+          message);
+      assertEquals(
+          "error executing command \n"
+          + "  (cd /tmp && \\\n"
+          + "  exec env - \\\n"
+          + "    FOO=foo \\\n"
+          + "    PATH=/usr/bin:/bin:/sbin \\\n"
+          + "  this_command_will_not_be_found arg1 "
+          + "arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 "
+          + "arg11 arg12 arg13 arg14 arg15 arg16 arg17 arg18 "
+          + "arg19 arg20 arg21 arg22 arg23 arg24 arg25 arg26 "
+          + "arg27 arg28 arg29 arg30 arg31 arg32 arg33 arg34 "
+          + "arg35 arg36 arg37 arg38 arg39)",
+          verboseMessage);
+    }
+  }
+
+  @Test
+  public void failingCommand() throws Exception {
+    String[] args = new String[3];
+    args[0] = "/bin/sh";
+    args[1] = "-c";
+    args[2] = "echo Some errors 1>&2; echo Some output; exit 42";
+    Map<String, String> env = Maps.newTreeMap();
+    env.put("FOO", "foo");
+    env.put("PATH", "/usr/bin:/bin:/sbin");
+    try {
+      new Command(args, env, null).execute();
+      fail();
+    } catch (CommandException exception) {
+      String message = CommandUtils.describeCommandFailure(false, exception);
+      String verboseMessage = CommandUtils.describeCommandFailure(true, exception);
+      assertEquals(
+          "sh failed: error executing command " +
+          "/bin/sh -c 'echo Some errors 1>&2; echo Some output; exit 42': " +
+          "Process exited with status 42\n" +
+          "Some output\n" +
+          "Some errors\n",
+          message);
+      assertEquals(
+          "sh failed: error executing command \n" +
+          "  (exec env - \\\n" +
+          "    FOO=foo \\\n" +
+          "    PATH=/usr/bin:/bin:/sbin \\\n" +
+          "  /bin/sh -c 'echo Some errors 1>&2; echo Some output; exit 42'): " +
+          "Process exited with status 42\n" +
+          "Some output\n" +
+          "Some errors\n",
+          verboseMessage);
+    }
+  }
+}