| // Copyright 2017 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.common.options; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.junit.Assert.fail; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.jimfs.Jimfs; |
| import java.io.IOException; |
| import java.nio.file.FileSystem; |
| import java.nio.file.Path; |
| import java.util.List; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Tests {@link ParamsFilePreProcessor}. |
| */ |
| @RunWith(JUnit4.class) |
| public class ParamsFilePreProcessorTest { |
| private static final ImmutableList<String> PARAM_FILE_ARGS = |
| ImmutableList.of("params", "file", "args"); |
| |
| private static class MockParamsFilePreProcessor extends ParamsFilePreProcessor { |
| |
| MockParamsFilePreProcessor(FileSystem fs) { |
| super(fs); |
| } |
| |
| @Override |
| protected List<String> parse(Path paramsFile) throws IOException, OptionsParsingException { |
| return PARAM_FILE_ARGS; |
| } |
| } |
| |
| private FileSystem fileSystem; |
| private ParamsFilePreProcessor paramsFilePreProcessor; |
| |
| @Before |
| public void setup() { |
| fileSystem = Jimfs.newFileSystem(); |
| paramsFilePreProcessor = new MockParamsFilePreProcessor(fileSystem); |
| } |
| |
| @Test |
| public void testNoArgs() throws OptionsParsingException { |
| List<String> args = paramsFilePreProcessor.preProcess(ImmutableList.of()); |
| assertThat(args).isEmpty(); |
| } |
| |
| @Test |
| public void testNoParamsFile() throws OptionsParsingException { |
| List<String> rawArgs = ImmutableList.of("--foo", "foo val"); |
| List<String> args = paramsFilePreProcessor.preProcess(rawArgs); |
| assertThat(args).containsExactlyElementsIn(rawArgs).inOrder(); |
| } |
| |
| @Test |
| public void testParamsFileNotFirst() throws OptionsParsingException { |
| List<String> rawArgs = ImmutableList.of("--foo", "foo val", "@paramsFile"); |
| List<String> args = paramsFilePreProcessor.preProcess(rawArgs); |
| assertThat(args).containsExactlyElementsIn(rawArgs).inOrder(); |
| } |
| |
| @Test |
| public void testTooManyArgs() throws OptionsParsingException { |
| List<String> rawArgs = ImmutableList.of("@paramsFile", "--foo", "foo val"); |
| try { |
| paramsFilePreProcessor.preProcess(rawArgs); |
| fail("Expected OptionsParsingException"); |
| } catch (OptionsParsingException expected) { |
| assertThat(expected) |
| .hasMessageThat() |
| .isEqualTo( |
| String.format(ParamsFilePreProcessor.TOO_MANY_ARGS_ERROR_MESSAGE_FORMAT, rawArgs)); |
| } |
| } |
| |
| @Test |
| public void testExceptionDuringParsing() throws OptionsParsingException { |
| ParamsFilePreProcessor exceptionParser = new ParamsFilePreProcessor(fileSystem) { |
| @Override |
| protected List<String> parse(Path paramsFile) throws IOException, OptionsParsingException { |
| throw new IOException("Error parsing " + paramsFile); |
| } |
| }; |
| String paramsFileName = "paramsFile"; |
| Path paramsFile = fileSystem.getPath(paramsFileName); |
| try { |
| exceptionParser.preProcess(ImmutableList.of("@" + paramsFileName)); |
| fail("Expected OptionsParsingException"); |
| } catch (OptionsParsingException expected) { |
| assertThat(expected) |
| .hasMessageThat() |
| .isEqualTo( |
| String.format( |
| ParamsFilePreProcessor.ERROR_MESSAGE_FORMAT, |
| paramsFile, |
| "Error parsing " + paramsFileName)); |
| } |
| } |
| |
| @Test |
| public void testParamsFile() throws OptionsParsingException { |
| List<String> args = paramsFilePreProcessor.preProcess(ImmutableList.of("@paramsFile")); |
| assertThat(args).containsExactlyElementsIn(PARAM_FILE_ARGS).inOrder(); |
| } |
| } |