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// Copyright 2016 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.coverageoutputgenerator;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.assertMergedSourceFile;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.assertTracefile1;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.createLinesExecution1;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.createLinesExecution2;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.createSourceFile1;
import static com.google.devtools.coverageoutputgenerator.LcovMergerTestUtils.createSourceFile2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Test for LcovMerger. */
@RunWith(JUnit4.class)
public class CoverageTest {
private Coverage coverage;
@Before
public void initializeCoverage() {
coverage = new Coverage();
}
@Test
public void testOneTracefile() throws Exception {
SourceFileCoverage sourceFileCoverage = createSourceFile1(createLinesExecution1());
coverage.add(sourceFileCoverage);
assertThat(coverage.getAllSourceFiles()).hasSize(1);
assertTracefile1(Iterables.get(coverage.getAllSourceFiles(), 0));
}
@Test
public void testTwoOverlappingTracefiles() throws Exception {
int[] linesExecution1 = createLinesExecution1();
int[] linesExecution2 = createLinesExecution2();
SourceFileCoverage sourceFileCoverage1 = createSourceFile1(linesExecution1);
SourceFileCoverage sourceFileCoverage2 = createSourceFile2(linesExecution2);
coverage.add(sourceFileCoverage1);
coverage.add(sourceFileCoverage2);
assertThat(coverage.getAllSourceFiles()).hasSize(1);
SourceFileCoverage merged = Iterables.get(coverage.getAllSourceFiles(), 0);
assertMergedSourceFile(merged, linesExecution1, linesExecution2);
}
@Test
public void testTwoTracefiles() throws Exception {
SourceFileCoverage sourceFileCoverage1 = createSourceFile1(createLinesExecution1());
SourceFileCoverage sourceFileCoverage2 =
createSourceFile1("SOME_OTHER_FILENAME", createLinesExecution1());
coverage.add(sourceFileCoverage1);
coverage.add(sourceFileCoverage2);
assertThat(coverage.getAllSourceFiles()).hasSize(2);
assertTracefile1(Iterables.get(coverage.getAllSourceFiles(), 0));
assertTracefile1(Iterables.get(coverage.getAllSourceFiles(), 1));
}
@Test
public void testFilterSources() throws Exception {
Coverage coverage = new Coverage();
coverage.add(new SourceFileCoverage("/filterOut/package/file1.c"));
coverage.add(new SourceFileCoverage("/filterOut/package/file2.c"));
SourceFileCoverage validSource1 = new SourceFileCoverage("/valid/package/file3.c");
coverage.add(validSource1);
SourceFileCoverage validSource2 = new SourceFileCoverage("/valid/package/file4.c");
coverage.add(validSource2);
Collection<SourceFileCoverage> filteredSources =
Coverage.filterOutMatchingSources(coverage, ImmutableList.of("/filterOut/package/.+"))
.getAllSourceFiles();
assertThat(filteredSources).containsExactly(validSource1, validSource2);
}
@Test
public void testFilterSourcesEmptyResult() throws Exception {
Coverage coverage = new Coverage();
coverage.add(new SourceFileCoverage("/filterOut/package/file1.c"));
coverage.add(new SourceFileCoverage("/filterOut/package/file2.c"));
Collection<SourceFileCoverage> filteredSources =
Coverage.filterOutMatchingSources(coverage, ImmutableList.of("/filterOut/package/.+"))
.getAllSourceFiles();
assertThat(filteredSources).isEmpty();
}
@Test
public void testFilterSourcesNoMatches() throws Exception {
Coverage coverage = new Coverage();
SourceFileCoverage validSource1 = new SourceFileCoverage("/valid/package/file3.c");
coverage.add(validSource1);
SourceFileCoverage validSource2 = new SourceFileCoverage("/valid/package/file4.c");
coverage.add(validSource2);
Collection<SourceFileCoverage> filteredSources =
Coverage.filterOutMatchingSources(coverage, ImmutableList.of("/something/else/.+"))
.getAllSourceFiles();
assertThat(filteredSources).containsExactly(validSource1, validSource2);
}
@Test
public void testFilterSourcesMultipleRegex() throws Exception {
Coverage coverage = new Coverage();
coverage.add(new SourceFileCoverage("/filterOut/package/file1.c"));
coverage.add(new SourceFileCoverage("/filterOut/package/file2.c"));
coverage.add(new SourceFileCoverage("/repo/external/p.c"));
SourceFileCoverage validSource1 = new SourceFileCoverage("/valid/package/file3.c");
coverage.add(validSource1);
SourceFileCoverage validSource2 = new SourceFileCoverage("/valid/package/file4.c");
coverage.add(validSource2);
Collection<SourceFileCoverage> filteredSources =
Coverage.filterOutMatchingSources(
coverage, ImmutableList.of("/filterOut/package/.+", ".+external.+"))
.getAllSourceFiles();
assertThat(filteredSources).containsExactly(validSource1, validSource2);
}
@Test
public void testFilterSourcesNoFilter() throws Exception {
Coverage coverage = new Coverage();
SourceFileCoverage validSource1 = new SourceFileCoverage("/valid/package/file3.c");
coverage.add(validSource1);
SourceFileCoverage validSource2 = new SourceFileCoverage("/valid/package/file4.c");
coverage.add(validSource2);
Collection<SourceFileCoverage> filteredSources =
Coverage.filterOutMatchingSources(coverage, ImmutableList.of()).getAllSourceFiles();
assertThat(filteredSources).containsExactly(validSource1, validSource2);
}
@Test(expected = IllegalArgumentException.class)
public void testFilterSourcesNullCoverage() {
Coverage.filterOutMatchingSources(null, ImmutableList.of());
}
@Test(expected = IllegalArgumentException.class)
public void testFilterSourcesNullRegex() {
Coverage.filterOutMatchingSources(new Coverage(), null);
}
private List<String> getSourceFileNames(
Collection<SourceFileCoverage> sourceFileCoverageCollection) {
ImmutableList.Builder<String> sourceFilenames = ImmutableList.builder();
for (SourceFileCoverage sourceFileCoverage : sourceFileCoverageCollection) {
sourceFilenames.add(sourceFileCoverage.sourceFileName());
}
return sourceFilenames.build();
}
@Test
public void testGetOnlyTheseSources() throws Exception {
Coverage coverage = new Coverage();
coverage.add(new SourceFileCoverage("source/common/protobuf/utility.cc"));
coverage.add(new SourceFileCoverage("source/common/grpc/common.cc"));
coverage.add(new SourceFileCoverage("source/server/options.cc"));
coverage.add(new SourceFileCoverage("source/server/manager.cc"));
Set<String> sourcesToKeep = new HashSet<>();
sourcesToKeep.add("source/common/protobuf/utility.cc");
sourcesToKeep.add("source/common/grpc/common.cc");
assertThat(
getSourceFileNames(
Coverage.getOnlyTheseCcSources(coverage, sourcesToKeep).getAllSourceFiles()))
.containsExactly("source/common/protobuf/utility.cc", "source/common/grpc/common.cc");
}
@Test(expected = IllegalArgumentException.class)
public void testGetOnlyTheseSourcesNullCoverage() {
Coverage.getOnlyTheseCcSources(null, new HashSet<>());
}
@Test(expected = IllegalArgumentException.class)
public void testGetOnlyTheseSourcesNullSources() {
Coverage.getOnlyTheseCcSources(new Coverage(), null);
}
@Test
public void testGetOnlyTheseSourcesEmptySources() throws Exception {
Coverage coverage = new Coverage();
coverage.add(new SourceFileCoverage("source/common/protobuf/utility.cc"));
coverage.add(new SourceFileCoverage("source/common/grpc/common.cc"));
coverage.add(new SourceFileCoverage("source/server/options.cc"));
coverage.add(new SourceFileCoverage("source/server/manager.cc"));
assertThat(Coverage.getOnlyTheseCcSources(coverage, new HashSet<>()).getAllSourceFiles())
.isEmpty();
}
}
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