| // Copyright 2018 Google Inc. 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 profile |
| |
| import ( |
| "bytes" |
| "fmt" |
| "testing" |
| |
| "github.com/google/pprof/internal/proftest" |
| ) |
| |
| func TestMapMapping(t *testing.T) { |
| pm := &profileMerger{ |
| p: &Profile{}, |
| mappings: make(map[mappingKey]*Mapping), |
| mappingsByID: make(map[uint64]mapInfo), |
| } |
| for _, tc := range []struct { |
| desc string |
| m1 Mapping |
| m2 Mapping |
| wantMerged bool |
| }{ |
| { |
| desc: "same file name", |
| m1: Mapping{ |
| ID: 1, |
| File: "test-file-1", |
| }, |
| m2: Mapping{ |
| ID: 2, |
| File: "test-file-1", |
| }, |
| wantMerged: true, |
| }, |
| { |
| desc: "same build ID", |
| m1: Mapping{ |
| ID: 3, |
| BuildID: "test-build-id-1", |
| }, |
| m2: Mapping{ |
| ID: 4, |
| BuildID: "test-build-id-1", |
| }, |
| wantMerged: true, |
| }, |
| { |
| desc: "same fake mapping", |
| m1: Mapping{ |
| ID: 5, |
| }, |
| m2: Mapping{ |
| ID: 6, |
| }, |
| wantMerged: true, |
| }, |
| { |
| desc: "different start", |
| m1: Mapping{ |
| ID: 7, |
| Start: 0x1000, |
| Limit: 0x2000, |
| BuildID: "test-build-id-2", |
| }, |
| m2: Mapping{ |
| ID: 8, |
| Start: 0x3000, |
| Limit: 0x4000, |
| BuildID: "test-build-id-2", |
| }, |
| wantMerged: true, |
| }, |
| { |
| desc: "different file name", |
| m1: Mapping{ |
| ID: 9, |
| File: "test-file-2", |
| }, |
| m2: Mapping{ |
| ID: 10, |
| File: "test-file-3", |
| }, |
| }, |
| { |
| desc: "different build id", |
| m1: Mapping{ |
| ID: 11, |
| BuildID: "test-build-id-3", |
| }, |
| m2: Mapping{ |
| ID: 12, |
| BuildID: "test-build-id-4", |
| }, |
| }, |
| { |
| desc: "different size", |
| m1: Mapping{ |
| ID: 13, |
| Start: 0x1000, |
| Limit: 0x3000, |
| BuildID: "test-build-id-5", |
| }, |
| m2: Mapping{ |
| ID: 14, |
| Start: 0x1000, |
| Limit: 0x5000, |
| BuildID: "test-build-id-5", |
| }, |
| }, |
| { |
| desc: "different offset", |
| m1: Mapping{ |
| ID: 15, |
| Offset: 1, |
| BuildID: "test-build-id-6", |
| }, |
| m2: Mapping{ |
| ID: 16, |
| Offset: 2, |
| BuildID: "test-build-id-6", |
| }, |
| }, |
| } { |
| t.Run(tc.desc, func(t *testing.T) { |
| info1 := pm.mapMapping(&tc.m1) |
| info2 := pm.mapMapping(&tc.m2) |
| gotM1, gotM2 := *info1.m, *info2.m |
| |
| wantM1 := tc.m1 |
| wantM1.ID = gotM1.ID |
| if gotM1 != wantM1 { |
| t.Errorf("first mapping got %v, want %v", gotM1, wantM1) |
| } |
| |
| if tc.wantMerged { |
| if gotM1 != gotM2 { |
| t.Errorf("first mapping got %v, second mapping got %v, want equal", gotM1, gotM2) |
| } |
| if info1.offset != 0 { |
| t.Errorf("first mapping info got offset %d, want 0", info1.offset) |
| } |
| if wantOffset := int64(tc.m1.Start) - int64(tc.m2.Start); wantOffset != info2.offset { |
| t.Errorf("second mapping info got offset %d, want %d", info2.offset, wantOffset) |
| } |
| } else { |
| if gotM1.ID == gotM2.ID { |
| t.Errorf("first mapping got %v, second mapping got %v, want different IDs", gotM1, gotM2) |
| } |
| wantM2 := tc.m2 |
| wantM2.ID = gotM2.ID |
| if gotM2 != wantM2 { |
| t.Errorf("second mapping got %v, want %v", gotM2, wantM2) |
| } |
| } |
| }) |
| } |
| } |
| |
| func TestLocationIDMap(t *testing.T) { |
| ids := []uint64{1, 2, 5, 9, 10, 11, 100, 1000, 1000000} |
| missing := []uint64{3, 4, 200} |
| |
| // Populate the map,. |
| idmap := makeLocationIDMap(10) |
| for _, id := range ids { |
| loc := &Location{ID: id} |
| idmap.set(id, loc) |
| } |
| |
| // Check ids that should be present in the map. |
| for _, id := range ids { |
| loc := idmap.get(id) |
| if loc == nil { |
| t.Errorf("No location found for %d", id) |
| } else if loc.ID != id { |
| t.Errorf("Wrong location %d found for %d", loc.ID, id) |
| } |
| } |
| |
| // Check ids that should not be present in the map. |
| for _, id := range missing { |
| loc := idmap.get(id) |
| if loc != nil { |
| t.Errorf("Unexpected location %d found for %d", loc.ID, id) |
| } |
| } |
| } |
| |
| func BenchmarkMerge(b *testing.B) { |
| data := proftest.LargeProfile(b) |
| for n := 1; n <= 2; n++ { // Merge either 1 or 2 instances. |
| b.Run(fmt.Sprintf("%d", n), func(b *testing.B) { |
| list := make([]*Profile, n) |
| for i := 0; i < n; i++ { |
| prof, err := Parse(bytes.NewBuffer(data)) |
| if err != nil { |
| b.Fatal(err) |
| } |
| list[i] = prof |
| } |
| b.ResetTimer() |
| for i := 0; i < b.N; i++ { |
| _, err := Merge(list) |
| if err != nil { |
| b.Fatal(err) |
| } |
| } |
| }) |
| } |
| } |
| |
| func TestCompatibilizeSampleTypes(t *testing.T) { |
| for _, tc := range []struct { |
| desc string |
| ps []*Profile |
| want []*Profile |
| wantError bool |
| }{ |
| { |
| desc: "drop first sample types", |
| ps: []*Profile{ |
| { |
| DefaultSampleType: "delete1", |
| SampleType: []*ValueType{ |
| {Type: "delete1", Unit: "Unit1"}, |
| {Type: "delete2", Unit: "Unit2"}, |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3, 4, 5}}, |
| {Value: []int64{10, 20, 30, 40, 50}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep1", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| }, |
| want: []*Profile{ |
| { |
| DefaultSampleType: "keep1", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{3, 4, 5}}, |
| {Value: []int64{30, 40, 50}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep1", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| }, |
| }, |
| { |
| desc: "drop last sample types", |
| ps: []*Profile{ |
| { |
| DefaultSampleType: "delete2", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| {Type: "delete1", Unit: "Unit1"}, |
| {Type: "delete2", Unit: "Unit2"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3, 4, 5}}, |
| {Value: []int64{10, 20, 30, 40, 50}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep2", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| }, |
| want: []*Profile{ |
| { |
| DefaultSampleType: "keep1", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep2", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| }, |
| }, |
| { |
| desc: "drop sample types and reorder", |
| ps: []*Profile{ |
| { |
| DefaultSampleType: "keep3", |
| SampleType: []*ValueType{ |
| {Type: "delete1", Unit: "Unit1"}, |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "delete2", Unit: "Unit2"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3, 4, 5}}, |
| {Value: []int64{10, 20, 30, 40, 50}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep2", |
| SampleType: []*ValueType{ |
| {Type: "keep3", Unit: "Unit5"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep1", Unit: "Unit3"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{1, 2, 3}}, |
| {Value: []int64{10, 20, 30}}, |
| }, |
| }, |
| }, |
| want: []*Profile{ |
| { |
| DefaultSampleType: "keep3", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{2, 4, 5}}, |
| {Value: []int64{20, 40, 50}}, |
| }, |
| }, |
| { |
| DefaultSampleType: "keep2", |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit3"}, |
| {Type: "keep2", Unit: "Unit4"}, |
| {Type: "keep3", Unit: "Unit5"}, |
| }, |
| Sample: []*Sample{ |
| {Value: []int64{3, 2, 1}}, |
| {Value: []int64{30, 20, 10}}, |
| }, |
| }, |
| }, |
| }, |
| { |
| desc: "empty common types", |
| ps: []*Profile{ |
| { |
| SampleType: []*ValueType{ |
| {Type: "keep1", Unit: "Unit1"}, |
| {Type: "keep2", Unit: "Unit2"}, |
| {Type: "keep3", Unit: "Unit3"}, |
| }, |
| }, |
| { |
| SampleType: []*ValueType{ |
| {Type: "keep4", Unit: "Unit4"}, |
| {Type: "keep5", Unit: "Unit5"}, |
| }, |
| }, |
| }, |
| wantError: true, |
| }, |
| } { |
| t.Run(tc.desc, func(t *testing.T) { |
| err := CompatibilizeSampleTypes(tc.ps) |
| if (err != nil) != tc.wantError { |
| t.Fatalf("CompatibilizeSampleTypes() returned error: %v, want any error=%t", err, tc.wantError) |
| } |
| if err != nil { |
| return |
| } |
| for i := 0; i < len(tc.want); i++ { |
| gotStr := tc.ps[i].String() |
| wantStr := tc.want[i].String() |
| if gotStr != wantStr { |
| d, err := proftest.Diff([]byte(wantStr), []byte(gotStr)) |
| if err != nil { |
| t.Fatalf("failed to get diff: %v", err) |
| } |
| t.Errorf("CompatibilizeSampleTypes(): profile[%d] got diff (-want +got)\n%s", i, string(d)) |
| } |
| } |
| }) |
| } |
| } |
