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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package parse
import (
"reflect"
"strings"
"testing"
)
func TestParseLine(t *testing.T) {
cases := []struct {
line string
want *Benchmark
err bool // expect an error
}{
{
line: "BenchmarkEncrypt 100000000 19.6 ns/op",
want: &Benchmark{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6,
Measured: NsPerOp,
},
},
{
line: "BenchmarkEncrypt 100000000 19.6 ns/op 817.77 MB/s",
want: &Benchmark{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6, MBPerS: 817.77,
Measured: NsPerOp | MBPerS,
},
},
{
line: "BenchmarkEncrypt 100000000 19.6 ns/op 817.77",
want: &Benchmark{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6,
Measured: NsPerOp,
},
},
{
line: "BenchmarkEncrypt 100000000 19.6 ns/op 817.77 MB/s 5 allocs/op",
want: &Benchmark{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6, MBPerS: 817.77, AllocsPerOp: 5,
Measured: NsPerOp | MBPerS | AllocsPerOp,
},
},
{
line: "BenchmarkEncrypt 100000000 19.6 ns/op 817.77 MB/s 3 B/op 5 allocs/op",
want: &Benchmark{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6, MBPerS: 817.77, AllocedBytesPerOp: 3, AllocsPerOp: 5,
Measured: NsPerOp | MBPerS | AllocedBytesPerOp | AllocsPerOp,
},
},
// error handling cases
{
line: "BenchPress 100 19.6 ns/op", // non-benchmark
err: true,
},
{
line: "BenchmarkEncrypt lots 19.6 ns/op", // non-int iterations
err: true,
},
{
line: "BenchmarkBridge 100000000 19.6 smoots", // unknown unit
want: &Benchmark{
Name: "BenchmarkBridge",
N: 100000000,
},
},
{
line: "PASS",
err: true,
},
}
for _, tt := range cases {
have, err := ParseLine(tt.line)
if tt.err && err == nil {
t.Errorf("parsing line %q should have failed", tt.line)
continue
}
if !reflect.DeepEqual(have, tt.want) {
t.Errorf("parsed line %q incorrectly, want %v have %v", tt.line, tt.want, have)
}
}
}
func TestParseSet(t *testing.T) {
// Test two things:
// 1. The noise that can accompany testing.B output gets ignored.
// 2. Benchmarks with the same name have their order preserved.
in := `
? crypto [no test files]
PASS
pem_decrypt_test.go:17: test 4. %!s(x509.PEMCipher=5)
... [output truncated]
BenchmarkEncrypt 100000000 19.6 ns/op
BenchmarkEncrypt 5000000 517 ns/op
=== RUN TestChunk
--- PASS: TestChunk (0.00 seconds)
--- SKIP: TestLinuxSendfile (0.00 seconds)
fs_test.go:716: skipping; linux-only test
BenchmarkReadRequestApachebench 1000000 2960 ns/op 27.70 MB/s 839 B/op 9 allocs/op
BenchmarkClientServerParallel64 50000 59192 ns/op 7028 B/op 60 allocs/op
ok net/http 95.783s
`
want := Set{
"BenchmarkReadRequestApachebench": []*Benchmark{
{
Name: "BenchmarkReadRequestApachebench",
N: 1000000, NsPerOp: 2960, MBPerS: 27.70, AllocedBytesPerOp: 839, AllocsPerOp: 9,
Measured: NsPerOp | MBPerS | AllocedBytesPerOp | AllocsPerOp,
Ord: 2,
},
},
"BenchmarkClientServerParallel64": []*Benchmark{
{
Name: "BenchmarkClientServerParallel64",
N: 50000, NsPerOp: 59192, AllocedBytesPerOp: 7028, AllocsPerOp: 60,
Measured: NsPerOp | AllocedBytesPerOp | AllocsPerOp,
Ord: 3,
},
},
"BenchmarkEncrypt": []*Benchmark{
{
Name: "BenchmarkEncrypt",
N: 100000000, NsPerOp: 19.6,
Measured: NsPerOp,
Ord: 0,
},
{
Name: "BenchmarkEncrypt",
N: 5000000, NsPerOp: 517,
Measured: NsPerOp,
Ord: 1,
},
},
}
have, err := ParseSet(strings.NewReader(in))
if err != nil {
t.Fatalf("unexpected err during ParseSet: %v", err)
}
if !reflect.DeepEqual(want, have) {
t.Errorf("parsed bench set incorrectly, want %v have %v", want, have)
}
}
func TestString(t *testing.T) {
tests := []struct {
name string
input *Benchmark
wanted string
}{
{
name: "nsTest",
input: &Benchmark{
Name: "BenchmarkTest",
N: 100000000, NsPerOp: 19.6,
Measured: NsPerOp,
},
wanted: "BenchmarkTest 100000000 19.60 ns/op",
},
{
name: "mbTest",
input: &Benchmark{
Name: "BenchmarkTest",
N: 100000000, MBPerS: 19.6,
Measured: MBPerS,
},
wanted: "BenchmarkTest 100000000 19.60 MB/s",
},
{
name: "allocatedBytesTest",
input: &Benchmark{
Name: "BenchmarkTest",
N: 100000000, AllocedBytesPerOp: 5,
Measured: AllocedBytesPerOp,
},
wanted: "BenchmarkTest 100000000 5 B/op",
},
{
name: "allocsTest",
input: &Benchmark{
Name: "BenchmarkTest",
N: 100000000, AllocsPerOp: 5,
Measured: AllocsPerOp,
},
wanted: "BenchmarkTest 100000000 5 allocs/op",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
result := tt.input.String()
if result != tt.wanted {
t.Errorf("String() is called, want %q, have %q", tt.wanted, result)
}
})
}
}
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