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// Copyright 2014 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 symbolz
import (
"fmt"
"math"
"strings"
"testing"
"github.com/google/pprof/internal/plugin"
"github.com/google/pprof/internal/proftest"
"github.com/google/pprof/profile"
)
func TestSymbolzURL(t *testing.T) {
for try, want := range map[string]string{
"http://host:8000/profilez": "http://host:8000/symbolz",
"http://host:8000/profilez?seconds=5": "http://host:8000/symbolz",
"http://host:8000/profilez?seconds=5&format=proto": "http://host:8000/symbolz",
"http://host:8000/heapz?format=legacy": "http://host:8000/symbolz",
"http://host:8000/debug/pprof/profile": "http://host:8000/debug/pprof/symbol",
"http://host:8000/debug/pprof/profile?seconds=10": "http://host:8000/debug/pprof/symbol",
"http://host:8000/debug/pprof/heap": "http://host:8000/debug/pprof/symbol",
"http://some.host:8080/some/deeper/path/debug/pprof/endpoint?param=value": "http://some.host:8080/some/deeper/path/debug/pprof/symbol",
"http://host:8000/pprof/profile": "http://host:8000/pprof/symbol",
"http://host:8000/pprof/profile?seconds=15": "http://host:8000/pprof/symbol",
"http://host:8000/pprof/heap": "http://host:8000/pprof/symbol",
"http://host:8000/debug/pprof/block": "http://host:8000/debug/pprof/symbol",
"http://host:8000/debug/pprof/trace?seconds=5": "http://host:8000/debug/pprof/symbol",
"http://host:8000/debug/pprof/mutex": "http://host:8000/debug/pprof/symbol",
"http://host/whatever/pprof/heap": "http://host/whatever/pprof/symbol",
"http://host/whatever/pprof/growth": "http://host/whatever/pprof/symbol",
"http://host/whatever/pprof/profile": "http://host/whatever/pprof/symbol",
"http://host/whatever/pprof/pmuprofile": "http://host/whatever/pprof/symbol",
"http://host/whatever/pprof/contention": "http://host/whatever/pprof/symbol",
} {
if got := symbolz(try); got != want {
t.Errorf(`symbolz(%s)=%s, want "%s"`, try, got, want)
}
}
}
func TestSymbolize(t *testing.T) {
s := plugin.MappingSources{
"buildid": []struct {
Source string
Start uint64
}{
{Source: "http://localhost:80/profilez"},
},
}
for _, hasFunctions := range []bool{false, true} {
for _, force := range []bool{false, true} {
p := testProfile(hasFunctions)
if err := Symbolize(p, force, s, fetchSymbols, &proftest.TestUI{T: t}); err != nil {
t.Errorf("symbolz: %v", err)
continue
}
var wantSym, wantNoSym []*profile.Location
if force || !hasFunctions {
wantNoSym = p.Location[:1]
wantSym = p.Location[1:]
} else {
wantNoSym = p.Location
}
if err := checkSymbolized(wantSym, true); err != nil {
t.Errorf("symbolz hasFns=%v force=%v: %v", hasFunctions, force, err)
}
if err := checkSymbolized(wantNoSym, false); err != nil {
t.Errorf("symbolz hasFns=%v force=%v: %v", hasFunctions, force, err)
}
}
}
}
func testProfile(hasFunctions bool) *profile.Profile {
m := []*profile.Mapping{
{
ID: 1,
Start: 0x1000,
Limit: 0x5000,
BuildID: "buildid",
HasFunctions: hasFunctions,
},
}
p := &profile.Profile{
Location: []*profile.Location{
{ID: 1, Mapping: m[0], Address: 0x1000},
{ID: 2, Mapping: m[0], Address: 0x2000},
{ID: 3, Mapping: m[0], Address: 0x3000},
{ID: 4, Mapping: m[0], Address: 0x4000},
},
Mapping: m,
}
return p
}
func checkSymbolized(locs []*profile.Location, wantSymbolized bool) error {
for _, loc := range locs {
if !wantSymbolized && len(loc.Line) != 0 {
return fmt.Errorf("unexpected symbolization for %#x: %v", loc.Address, loc.Line)
}
if wantSymbolized {
if len(loc.Line) != 1 {
return fmt.Errorf("expected symbolization for %#x: %v", loc.Address, loc.Line)
}
address := loc.Address - loc.Mapping.Start
if got, want := loc.Line[0].Function.Name, fmt.Sprintf("%#x", address); got != want {
return fmt.Errorf("symbolz %#x, got %s, want %s", address, got, want)
}
}
}
return nil
}
func fetchSymbols(source, post string) ([]byte, error) {
var symbolz string
addresses := strings.Split(post, "+")
// Do not symbolize the first symbol.
for _, address := range addresses[1:] {
symbolz += fmt.Sprintf("%s\t%s\n", address, address)
}
return []byte(symbolz), nil
}
func TestAdjust(t *testing.T) {
for _, tc := range []struct {
addr uint64
offset int64
wantAdj uint64
wantOverflow bool
}{{math.MaxUint64, 0, math.MaxUint64, false},
{math.MaxUint64, 1, 0, true},
{math.MaxUint64 - 1, 1, math.MaxUint64, false},
{math.MaxUint64 - 1, 2, 0, true},
{math.MaxInt64 + 1, math.MaxInt64, math.MaxUint64, false},
{0, 0, 0, false},
{0, -1, 0, true},
{1, -1, 0, false},
{2, -1, 1, false},
{2, -2, 0, false},
{2, -3, 0, true},
{-math.MinInt64, math.MinInt64, 0, false},
{-math.MinInt64 + 1, math.MinInt64, 1, false},
{-math.MinInt64 - 1, math.MinInt64, 0, true},
} {
if adj, overflow := adjust(tc.addr, tc.offset); adj != tc.wantAdj || overflow != tc.wantOverflow {
t.Errorf("adjust(%d, %d) = (%d, %t), want (%d, %t)", tc.addr, tc.offset, adj, overflow, tc.wantAdj, tc.wantOverflow)
}
}
}
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