f8d9fa9e80
This upgrades all of libgo other than the runtime package to the Go 1.4 release. In Go 1.4 much of the runtime was rewritten into Go. Merging that code will take more time and will not change the API, so I'm putting it off for now. There are a few runtime changes anyhow, to accomodate other packages that rely on minor modifications to the runtime support. The compiler changes slightly to add a one-bit flag to each type descriptor kind that is stored directly in an interface, which for gccgo is currently only pointer types. Another one-bit flag (gcprog) is reserved because it is used by the gc compiler, but gccgo does not currently use it. There is another error check in the compiler since I ran across it during testing. gotools/: * Makefile.am (go_cmd_go_files): Sort entries. Add generate.go. * Makefile.in: Rebuild. From-SVN: r219627
114 lines
2.4 KiB
Go
114 lines
2.4 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package testing_test
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import (
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"bytes"
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"runtime"
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"sync/atomic"
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"testing"
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"text/template"
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)
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var roundDownTests = []struct {
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v, expected int
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}{
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{1, 1},
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{9, 1},
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{10, 10},
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{11, 10},
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{100, 100},
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{101, 100},
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{999, 100},
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{1000, 1000},
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{1001, 1000},
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}
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func TestRoundDown10(t *testing.T) {
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for _, tt := range roundDownTests {
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actual := testing.RoundDown10(tt.v)
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if tt.expected != actual {
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t.Errorf("roundDown10(%d): expected %d, actual %d", tt.v, tt.expected, actual)
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}
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}
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}
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var roundUpTests = []struct {
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v, expected int
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}{
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{0, 1},
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{1, 1},
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{2, 2},
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{3, 3},
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{5, 5},
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{9, 10},
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{999, 1000},
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{1000, 1000},
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{1400, 2000},
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{1700, 2000},
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{2700, 3000},
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{4999, 5000},
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{5000, 5000},
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{5001, 10000},
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}
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func TestRoundUp(t *testing.T) {
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for _, tt := range roundUpTests {
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actual := testing.RoundUp(tt.v)
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if tt.expected != actual {
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t.Errorf("roundUp(%d): expected %d, actual %d", tt.v, tt.expected, actual)
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}
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}
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}
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func TestRunParallel(t *testing.T) {
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testing.Benchmark(func(b *testing.B) {
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procs := uint32(0)
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iters := uint64(0)
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b.SetParallelism(3)
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b.RunParallel(func(pb *testing.PB) {
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atomic.AddUint32(&procs, 1)
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for pb.Next() {
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atomic.AddUint64(&iters, 1)
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}
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})
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if want := uint32(3 * runtime.GOMAXPROCS(0)); procs != want {
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t.Errorf("got %v procs, want %v", procs, want)
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}
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if iters != uint64(b.N) {
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t.Errorf("got %v iters, want %v", iters, b.N)
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}
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})
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}
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func TestRunParallelFail(t *testing.T) {
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testing.Benchmark(func(b *testing.B) {
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b.RunParallel(func(pb *testing.PB) {
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// The function must be able to log/abort
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// w/o crashing/deadlocking the whole benchmark.
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b.Log("log")
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b.Error("error")
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})
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})
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}
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func ExampleB_RunParallel() {
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// Parallel benchmark for text/template.Template.Execute on a single object.
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testing.Benchmark(func(b *testing.B) {
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templ := template.Must(template.New("test").Parse("Hello, {{.}}!"))
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// RunParallel will create GOMAXPROCS goroutines
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// and distribute work among them.
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b.RunParallel(func(pb *testing.PB) {
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// Each goroutine has its own bytes.Buffer.
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var buf bytes.Buffer
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for pb.Next() {
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// The loop body is executed b.N times total across all goroutines.
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buf.Reset()
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templ.Execute(&buf, "World")
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}
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})
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})
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}
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