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| 1 | +// Copyright 2025 syzkaller project authors. All rights reserved. |
| 2 | +// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. |
| 3 | + |
| 4 | +package main |
| 5 | + |
| 6 | +import ( |
| 7 | + "strings" |
| 8 | + "testing" |
| 9 | + |
| 10 | + "github.com/google/syzkaller/pkg/coveragedb" |
| 11 | + "github.com/google/syzkaller/pkg/coveragedb/mocks" |
| 12 | + "github.com/google/syzkaller/pkg/coveragedb/spannerclient" |
| 13 | + "github.com/google/syzkaller/pkg/covermerger" |
| 14 | + mergermocks "github.com/google/syzkaller/pkg/covermerger/mocks" |
| 15 | + "github.com/stretchr/testify/assert" |
| 16 | + "github.com/stretchr/testify/mock" |
| 17 | + "google.golang.org/api/iterator" |
| 18 | +) |
| 19 | + |
| 20 | +func TestFileCoverage(t *testing.T) { |
| 21 | + tests := []struct { |
| 22 | + name string |
| 23 | + covDB func(t *testing.T) spannerclient.SpannerClient |
| 24 | + fileProv covermerger.FileVersProvider |
| 25 | + url string |
| 26 | + wantInRes []string |
| 27 | + }{ |
| 28 | + { |
| 29 | + name: "empty db", |
| 30 | + covDB: func(t *testing.T) spannerclient.SpannerClient { return emptyCoverageDBFixture(t, 1) }, |
| 31 | + fileProv: staticFileProvider(t), |
| 32 | + url: "/test2/graph/coverage/file?dateto=2025-01-31&period=month&commit=c0e75905caf368e19aab585d20151500e750de89&filepath=virt/kvm/kvm_main.c", |
| 33 | + wantInRes: []string{"1 line1"}, |
| 34 | + }, |
| 35 | + { |
| 36 | + name: "regular db", |
| 37 | + covDB: func(t *testing.T) spannerclient.SpannerClient { return coverageDBFixture(t) }, |
| 38 | + fileProv: staticFileProvider(t), |
| 39 | + url: "/test2/graph/coverage/file?dateto=2025-01-31&period=month&commit=c0e75905caf368e19aab585d20151500e750de89&filepath=virt/kvm/kvm_main.c", |
| 40 | + wantInRes: []string{ |
| 41 | + "4 1 line1", |
| 42 | + "5 2 line2", |
| 43 | + "6 3 line3"}, |
| 44 | + }, |
| 45 | + { |
| 46 | + name: "multimanager db", |
| 47 | + covDB: func(t *testing.T) spannerclient.SpannerClient { return multiManagerCovDBFixture(t) }, |
| 48 | + fileProv: staticFileProvider(t), |
| 49 | + url: "/test2/graph/coverage/file?dateto=2025-01-31&period=month&commit=c0e75905caf368e19aab585d20151500e750de89&filepath=virt/kvm/kvm_main.c&manager=special-cc-manager&unique-only=1", |
| 50 | + wantInRes: []string{ |
| 51 | + " 0 1 line1", // Covered, is not unique. |
| 52 | + " 5 2 line2", // Covered and is unique. |
| 53 | + " 3 line3", // Covered only by "*" managers. |
| 54 | + }, |
| 55 | + }, |
| 56 | + } |
| 57 | + for _, test := range tests { |
| 58 | + t.Run(test.name, func(t *testing.T) { |
| 59 | + c := NewCtx(t) |
| 60 | + defer c.Close() |
| 61 | + c.setCoverageMocks("test2", test.covDB(t), test.fileProv) |
| 62 | + fileCovPage, err := c.GET(test.url) |
| 63 | + assert.NoError(t, err) |
| 64 | + got := string(fileCovPage) |
| 65 | + for _, want := range test.wantInRes { |
| 66 | + if !strings.Contains(got, want) { |
| 67 | + t.Errorf(`"%s" wasn't found in "%s"'`, want, got) |
| 68 | + } |
| 69 | + } |
| 70 | + }) |
| 71 | + } |
| 72 | +} |
| 73 | + |
| 74 | +func staticFileProvider(t *testing.T) covermerger.FileVersProvider { |
| 75 | + m := mergermocks.NewFileVersProvider(t) |
| 76 | + m.On("GetFileVersions", mock.Anything, mock.Anything). |
| 77 | + Return(func(targetFilePath string, repoCommits ...covermerger.RepoCommit, |
| 78 | + ) covermerger.FileVersions { |
| 79 | + res := covermerger.FileVersions{} |
| 80 | + for _, rc := range repoCommits { |
| 81 | + res[rc] = `line1 |
| 82 | +line2 |
| 83 | +line3` |
| 84 | + } |
| 85 | + return res |
| 86 | + }, nil) |
| 87 | + return m |
| 88 | +} |
| 89 | + |
| 90 | +func emptyCoverageDBFixture(t *testing.T, times int) spannerclient.SpannerClient { |
| 91 | + mRowIterator := mocks.NewRowIterator(t) |
| 92 | + mRowIterator.On("Stop").Return().Times(times) |
| 93 | + mRowIterator.On("Next"). |
| 94 | + Return(nil, iterator.Done).Times(times) |
| 95 | + |
| 96 | + mTran := mocks.NewReadOnlyTransaction(t) |
| 97 | + mTran.On("Query", mock.Anything, mock.Anything). |
| 98 | + Return(mRowIterator).Times(times) |
| 99 | + |
| 100 | + m := mocks.NewSpannerClient(t) |
| 101 | + m.On("Single"). |
| 102 | + Return(mTran).Times(times) |
| 103 | + return m |
| 104 | +} |
| 105 | + |
| 106 | +func coverageDBFixture(t *testing.T) spannerclient.SpannerClient { |
| 107 | + mRowIt := newRowIteratorMock(t, []*coveragedb.LinesCoverage{{ |
| 108 | + LinesInstrumented: []int64{1, 2, 3}, |
| 109 | + HitCounts: []int64{4, 5, 6}, |
| 110 | + }}) |
| 111 | + |
| 112 | + mTran := mocks.NewReadOnlyTransaction(t) |
| 113 | + mTran.On("Query", mock.Anything, mock.Anything). |
| 114 | + Return(mRowIt).Once() |
| 115 | + |
| 116 | + m := mocks.NewSpannerClient(t) |
| 117 | + m.On("Single"). |
| 118 | + Return(mTran).Once() |
| 119 | + return m |
| 120 | +} |
| 121 | + |
| 122 | +func multiManagerCovDBFixture(t *testing.T) spannerclient.SpannerClient { |
| 123 | + mReadFullCoverageTran := mocks.NewReadOnlyTransaction(t) |
| 124 | + mReadFullCoverageTran.On("Query", mock.Anything, mock.Anything). |
| 125 | + Return(newRowIteratorMock(t, []*coveragedb.LinesCoverage{{ |
| 126 | + LinesInstrumented: []int64{1, 2, 3}, |
| 127 | + HitCounts: []int64{4, 5, 6}, |
| 128 | + }})).Once() |
| 129 | + |
| 130 | + mReadPartialCoverageTran := mocks.NewReadOnlyTransaction(t) |
| 131 | + mReadPartialCoverageTran.On("Query", mock.Anything, mock.Anything). |
| 132 | + Return(newRowIteratorMock(t, []*coveragedb.LinesCoverage{{ |
| 133 | + LinesInstrumented: []int64{1, 2}, |
| 134 | + HitCounts: []int64{3, 5}, |
| 135 | + }})).Once() |
| 136 | + |
| 137 | + m := mocks.NewSpannerClient(t) |
| 138 | + // The order matters. Full coverage is fetched second. |
| 139 | + m.On("Single"). |
| 140 | + Return(mReadPartialCoverageTran).Once() |
| 141 | + m.On("Single"). |
| 142 | + Return(mReadFullCoverageTran).Once() |
| 143 | + |
| 144 | + return m |
| 145 | +} |
| 146 | + |
| 147 | +func newRowIteratorMock(t *testing.T, cov []*coveragedb.LinesCoverage, |
| 148 | +) *mocks.RowIterator { |
| 149 | + m := mocks.NewRowIterator(t) |
| 150 | + m.On("Stop").Once().Return() |
| 151 | + for _, item := range cov { |
| 152 | + mRow := mocks.NewRow(t) |
| 153 | + mRow.On("ToStruct", mock.Anything). |
| 154 | + Run(func(args mock.Arguments) { |
| 155 | + arg := args.Get(0).(*coveragedb.LinesCoverage) |
| 156 | + *arg = *item |
| 157 | + }). |
| 158 | + Return(nil).Once() |
| 159 | + |
| 160 | + m.On("Next"). |
| 161 | + Return(mRow, nil).Once() |
| 162 | + } |
| 163 | + |
| 164 | + m.On("Next"). |
| 165 | + Return(nil, iterator.Done).Once() |
| 166 | + return m |
| 167 | +} |
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