diff options
Diffstat (limited to 'src/strconv/strconv_test.go')
-rw-r--r-- | src/strconv/strconv_test.go | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/strconv/strconv_test.go b/src/strconv/strconv_test.go new file mode 100644 index 000000000..9a007dde4 --- /dev/null +++ b/src/strconv/strconv_test.go @@ -0,0 +1,57 @@ +// Copyright 2012 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 strconv_test + +import ( + "runtime" + . "strconv" + "strings" + "testing" +) + +var ( + globalBuf [64]byte + nextToOne = "1.00000000000000011102230246251565404236316680908203125" + strings.Repeat("0", 10000) + "1" + + mallocTest = []struct { + count int + desc string + fn func() + }{ + {0, `AppendInt(localBuf[:0], 123, 10)`, func() { + var localBuf [64]byte + AppendInt(localBuf[:0], 123, 10) + }}, + {0, `AppendInt(globalBuf[:0], 123, 10)`, func() { AppendInt(globalBuf[:0], 123, 10) }}, + {0, `AppendFloat(localBuf[:0], 1.23, 'g', 5, 64)`, func() { + var localBuf [64]byte + AppendFloat(localBuf[:0], 1.23, 'g', 5, 64) + }}, + {0, `AppendFloat(globalBuf[:0], 1.23, 'g', 5, 64)`, func() { AppendFloat(globalBuf[:0], 1.23, 'g', 5, 64) }}, + {0, `ParseFloat("123.45", 64)`, func() { ParseFloat("123.45", 64) }}, + {0, `ParseFloat("123.456789123456789", 64)`, func() { ParseFloat("123.456789123456789", 64) }}, + {0, `ParseFloat("1.000000000000000111022302462515654042363166809082031251", 64)`, func() { + ParseFloat("1.000000000000000111022302462515654042363166809082031251", 64) + }}, + {0, `ParseFloat("1.0000000000000001110223024625156540423631668090820312500...001", 64)`, func() { + ParseFloat(nextToOne, 64) + }}, + } +) + +func TestCountMallocs(t *testing.T) { + if testing.Short() { + t.Skip("skipping malloc count in short mode") + } + if runtime.GOMAXPROCS(0) > 1 { + t.Skip("skipping; GOMAXPROCS>1") + } + for _, mt := range mallocTest { + allocs := testing.AllocsPerRun(100, mt.fn) + if max := float64(mt.count); allocs > max { + t.Errorf("%s: %v allocs, want <=%v", mt.desc, allocs, max) + } + } +} |