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// Copyright 2018 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.lcovmerger;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.lcovmerger.LcovMergerTestUtils.TRACEFILE1;
import static com.google.devtools.lcovmerger.LcovMergerTestUtils.TRACEFILE2;
import static com.google.devtools.lcovmerger.LcovMergerTestUtils.assertTracefile1;
import static com.google.devtools.lcovmerger.LcovMergerTestUtils.assertTracefile2;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.base.Joiner;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Unit tests for {@LcovParser}.
*/
@RunWith(JUnit4.class)
public class LcovParserTest {
@Test
public void testParseInvalidTracefile() throws IOException {
List<SourceFileCoverage> sourceFiles =
LcovParser.parse(new ByteArrayInputStream("Invalid lcov tracefile".getBytes(UTF_8)));
assertThat(sourceFiles).isEmpty();
}
@Test
public void testParseTracefileWithOneSourcefile() throws IOException {
List<SourceFileCoverage> sourceFiles = LcovParser.parse(
new ByteArrayInputStream(Joiner.on("\n").join(TRACEFILE1).getBytes(UTF_8)));
assertThat(sourceFiles).hasSize(1);
assertTracefile1(sourceFiles.get(0));
}
@Test
public void testParseTracefileWithTwoSourcefiles() throws IOException {
List<String> tracefile2ModifiedLines = new ArrayList<>();
tracefile2ModifiedLines.addAll(TRACEFILE2);
tracefile2ModifiedLines.set(0, "SF:BSOME_OTHER_FILE_THAT_IS_NOT_MERGED");
List<String> tracefileLines = new ArrayList<>();
tracefileLines.addAll(TRACEFILE1);
tracefileLines.addAll(tracefile2ModifiedLines);
InputStream inputStream =
new ByteArrayInputStream(Joiner.on("\n").join(tracefileLines).getBytes(UTF_8));
List<SourceFileCoverage> sourceFiles = LcovParser.parse(inputStream);
assertThat(sourceFiles).hasSize(2);
assertTracefile1(sourceFiles.get(0));
assertTracefile2(sourceFiles.get(1));
}
}
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