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// Copyright 2014 The Bazel Authors. 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 com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableList;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.Arrays;
/**
* Tests for the {@link CommandBuilder} class.
*/
@RunWith(JUnit4.class)
public class CommandBuilderTest {
private CommandBuilder linuxBuilder() {
return new CommandBuilder(OS.LINUX).useTempDir();
}
private CommandBuilder winBuilder() {
return new CommandBuilder(OS.WINDOWS).useTempDir();
}
private void assertArgv(CommandBuilder builder, String... expected) {
assertThat(Arrays.asList(builder.build().getCommandLineElements())).containsExactlyElementsIn(
Arrays.asList(expected)).inOrder();
}
private void assertWinCmdArgv(CommandBuilder builder, String expected) {
assertArgv(builder, "CMD.EXE", "/S", "/E:ON", "/V:ON", "/D", "/C", "\"" + expected + "\"");
}
private void assertFailure(CommandBuilder builder, String expected) {
try {
builder.build();
fail("Expected exception");
} catch (Exception e) {
assertThat(e).hasMessage(expected);
}
}
@Test
public void linuxBuilderTest() {
assertArgv(linuxBuilder().addArg("abc"), "abc");
assertArgv(linuxBuilder().addArg("abc def"), "abc def");
assertArgv(linuxBuilder().addArgs("abc", "def"), "abc", "def");
assertArgv(linuxBuilder().addArgs(ImmutableList.of("abc", "def")), "abc", "def");
assertArgv(linuxBuilder().addArg("abc").useShell(true), "/bin/sh", "-c", "abc");
assertArgv(linuxBuilder().addArg("abc def").useShell(true), "/bin/sh", "-c", "abc def");
assertArgv(linuxBuilder().addArgs("abc", "def").useShell(true), "/bin/sh", "-c", "abc def");
assertArgv(linuxBuilder().addArgs("/bin/sh", "-c", "abc").useShell(true),
"/bin/sh", "-c", "abc");
assertArgv(linuxBuilder().addArgs("/bin/sh", "-c"), "/bin/sh", "-c");
assertArgv(linuxBuilder().addArgs("/bin/bash", "-c"), "/bin/bash", "-c");
assertArgv(linuxBuilder().addArgs("/bin/sh", "-c").useShell(true), "/bin/sh", "-c");
assertArgv(linuxBuilder().addArgs("/bin/bash", "-c").useShell(true), "/bin/bash", "-c");
}
@Test
public void windowsBuilderTest() {
assertArgv(winBuilder().addArg("abc.exe"), "abc.exe");
assertArgv(winBuilder().addArg("abc.exe -o"), "abc.exe -o");
assertArgv(winBuilder().addArg("ABC.EXE"), "ABC.EXE");
assertWinCmdArgv(winBuilder().addArg("abc def.exe"), "abc def.exe");
assertArgv(winBuilder().addArgs("abc.exe", "def"), "abc.exe", "def");
assertArgv(winBuilder().addArgs(ImmutableList.of("abc.exe", "def")), "abc.exe", "def");
assertWinCmdArgv(winBuilder().addArgs("abc.exe", "def").useShell(true), "abc.exe def");
assertWinCmdArgv(winBuilder().addArg("abc"), "abc");
assertWinCmdArgv(winBuilder().addArgs("abc", "def"), "abc def");
assertWinCmdArgv(winBuilder().addArgs("/bin/sh", "-c", "abc", "def"), "abc def");
assertWinCmdArgv(winBuilder().addArgs("/bin/sh", "-c"), "");
assertWinCmdArgv(winBuilder().addArgs("/bin/bash", "-c"), "");
assertWinCmdArgv(winBuilder().addArgs("/bin/sh", "-c").useShell(true), "");
assertWinCmdArgv(winBuilder().addArgs("/bin/bash", "-c").useShell(true), "");
}
@Test
public void failureScenarios() {
assertFailure(linuxBuilder(), "At least one argument is expected");
assertFailure(new CommandBuilder(OS.UNKNOWN).useTempDir().addArg("a"),
"Unidentified operating system");
assertFailure(new CommandBuilder(OS.LINUX).addArg("a"),
"Working directory must be set");
}
}
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