diff options
Diffstat (limited to 'libgo/go/runtime/string_test.go')
| -rw-r--r-- | libgo/go/runtime/string_test.go | 166 |
1 files changed, 134 insertions, 32 deletions
diff --git a/libgo/go/runtime/string_test.go b/libgo/go/runtime/string_test.go index 11fa454a5a8..ee306999e2e 100644 --- a/libgo/go/runtime/string_test.go +++ b/libgo/go/runtime/string_test.go @@ -5,6 +5,7 @@ package runtime_test import ( + "runtime" "strings" "testing" ) @@ -81,28 +82,50 @@ func BenchmarkCompareStringBig(b *testing.B) { b.SetBytes(int64(len(s1))) } -func BenchmarkRuneIterate(b *testing.B) { - bytes := make([]byte, 100) - for i := range bytes { - bytes[i] = byte('A') - } - s := string(bytes) +func BenchmarkConcatStringAndBytes(b *testing.B) { + s1 := []byte("Gophers!") for i := 0; i < b.N; i++ { - for range s { - } + _ = "Hello " + string(s1) } } -func BenchmarkRuneIterate2(b *testing.B) { - bytes := make([]byte, 100) - for i := range bytes { - bytes[i] = byte('A') - } - s := string(bytes) - for i := 0; i < b.N; i++ { - for range s { +var stringdata = []struct{ name, data string }{ + {"ASCII", "01234567890"}, + {"Japanese", "日本語日本語日本語"}, + {"MixedLength", "$Ѐࠀက퀀𐀀\U00040000\U0010FFFF"}, +} + +func BenchmarkRuneIterate(b *testing.B) { + b.Run("range", func(b *testing.B) { + for _, sd := range stringdata { + b.Run(sd.name, func(b *testing.B) { + for i := 0; i < b.N; i++ { + for range sd.data { + } + } + }) } - } + }) + b.Run("range1", func(b *testing.B) { + for _, sd := range stringdata { + b.Run(sd.name, func(b *testing.B) { + for i := 0; i < b.N; i++ { + for _ = range sd.data { + } + } + }) + } + }) + b.Run("range2", func(b *testing.B) { + for _, sd := range stringdata { + b.Run(sd.name, func(b *testing.B) { + for i := 0; i < b.N; i++ { + for _, _ = range sd.data { + } + } + }) + } + }) } func BenchmarkArrayEqual(b *testing.B) { @@ -149,21 +172,6 @@ func TestLargeStringConcat(t *testing.T) { } } -/* -func TestGostringnocopy(t *testing.T) { - max := *runtime.Maxstring - b := make([]byte, max+10) - for i := uintptr(0); i < max+9; i++ { - b[i] = 'a' - } - _ = runtime.Gostringnocopy(&b[0]) - newmax := *runtime.Maxstring - if newmax != max+9 { - t.Errorf("want %d, got %d", max+9, newmax) - } -} -*/ - func TestCompareTempString(t *testing.T) { s := strings.Repeat("x", sizeNoStack) b := []byte(s) @@ -277,3 +285,97 @@ func TestString2Slice(t *testing.T) { t.Errorf("extra runes not zeroed") } } + +const intSize = 32 << (^uint(0) >> 63) + +type atoi64Test struct { + in string + out int64 + ok bool +} + +var atoi64tests = []atoi64Test{ + {"", 0, false}, + {"0", 0, true}, + {"-0", 0, true}, + {"1", 1, true}, + {"-1", -1, true}, + {"12345", 12345, true}, + {"-12345", -12345, true}, + {"012345", 12345, true}, + {"-012345", -12345, true}, + {"12345x", 0, false}, + {"-12345x", 0, false}, + {"98765432100", 98765432100, true}, + {"-98765432100", -98765432100, true}, + {"20496382327982653440", 0, false}, + {"-20496382327982653440", 0, false}, + {"9223372036854775807", 1<<63 - 1, true}, + {"-9223372036854775807", -(1<<63 - 1), true}, + {"9223372036854775808", 0, false}, + {"-9223372036854775808", -1 << 63, true}, + {"9223372036854775809", 0, false}, + {"-9223372036854775809", 0, false}, +} + +func TestAtoi(t *testing.T) { + switch intSize { + case 32: + for i := range atoi32tests { + test := &atoi32tests[i] + out, ok := runtime.Atoi(test.in) + if test.out != int32(out) || test.ok != ok { + t.Errorf("atoi(%q) = (%v, %v) want (%v, %v)", + test.in, out, ok, test.out, test.ok) + } + } + case 64: + for i := range atoi64tests { + test := &atoi64tests[i] + out, ok := runtime.Atoi(test.in) + if test.out != int64(out) || test.ok != ok { + t.Errorf("atoi(%q) = (%v, %v) want (%v, %v)", + test.in, out, ok, test.out, test.ok) + } + } + } +} + +type atoi32Test struct { + in string + out int32 + ok bool +} + +var atoi32tests = []atoi32Test{ + {"", 0, false}, + {"0", 0, true}, + {"-0", 0, true}, + {"1", 1, true}, + {"-1", -1, true}, + {"12345", 12345, true}, + {"-12345", -12345, true}, + {"012345", 12345, true}, + {"-012345", -12345, true}, + {"12345x", 0, false}, + {"-12345x", 0, false}, + {"987654321", 987654321, true}, + {"-987654321", -987654321, true}, + {"2147483647", 1<<31 - 1, true}, + {"-2147483647", -(1<<31 - 1), true}, + {"2147483648", 0, false}, + {"-2147483648", -1 << 31, true}, + {"2147483649", 0, false}, + {"-2147483649", 0, false}, +} + +func TestAtoi32(t *testing.T) { + for i := range atoi32tests { + test := &atoi32tests[i] + out, ok := runtime.Atoi32(test.in) + if test.out != out || test.ok != ok { + t.Errorf("atoi32(%q) = (%v, %v) want (%v, %v)", + test.in, out, ok, test.out, test.ok) + } + } +} |