diff options
Diffstat (limited to 'src/pkg/strconv/atof_test.go')
-rw-r--r-- | src/pkg/strconv/atof_test.go | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/src/pkg/strconv/atof_test.go b/src/pkg/strconv/atof_test.go deleted file mode 100644 index 6d8396ee7..000000000 --- a/src/pkg/strconv/atof_test.go +++ /dev/null @@ -1,188 +0,0 @@ -// Copyright 2009 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 ( - "os" - "reflect" - . "strconv" - "testing" -) - -type atofTest struct { - in string - out string - err os.Error -} - -var atoftests = []atofTest{ - {"", "0", os.EINVAL}, - {"1", "1", nil}, - {"+1", "1", nil}, - {"1x", "0", os.EINVAL}, - {"1.1.", "0", os.EINVAL}, - {"1e23", "1e+23", nil}, - {"1E23", "1e+23", nil}, - {"100000000000000000000000", "1e+23", nil}, - {"1e-100", "1e-100", nil}, - {"123456700", "1.234567e+08", nil}, - {"99999999999999974834176", "9.999999999999997e+22", nil}, - {"100000000000000000000001", "1.0000000000000001e+23", nil}, - {"100000000000000008388608", "1.0000000000000001e+23", nil}, - {"100000000000000016777215", "1.0000000000000001e+23", nil}, - {"100000000000000016777216", "1.0000000000000003e+23", nil}, - {"-1", "-1", nil}, - {"-0", "-0", nil}, - {"1e-20", "1e-20", nil}, - {"625e-3", "0.625", nil}, - - // NaNs - {"nan", "NaN", nil}, - {"NaN", "NaN", nil}, - {"NAN", "NaN", nil}, - - // Infs - {"inf", "+Inf", nil}, - {"-Inf", "-Inf", nil}, - {"+INF", "+Inf", nil}, - - // largest float64 - {"1.7976931348623157e308", "1.7976931348623157e+308", nil}, - {"-1.7976931348623157e308", "-1.7976931348623157e+308", nil}, - // next float64 - too large - {"1.7976931348623159e308", "+Inf", os.ERANGE}, - {"-1.7976931348623159e308", "-Inf", os.ERANGE}, - // the border is ...158079 - // borderline - okay - {"1.7976931348623158e308", "1.7976931348623157e+308", nil}, - {"-1.7976931348623158e308", "-1.7976931348623157e+308", nil}, - // borderline - too large - {"1.797693134862315808e308", "+Inf", os.ERANGE}, - {"-1.797693134862315808e308", "-Inf", os.ERANGE}, - - // a little too large - {"1e308", "1e+308", nil}, - {"2e308", "+Inf", os.ERANGE}, - {"1e309", "+Inf", os.ERANGE}, - - // way too large - {"1e310", "+Inf", os.ERANGE}, - {"-1e310", "-Inf", os.ERANGE}, - {"1e400", "+Inf", os.ERANGE}, - {"-1e400", "-Inf", os.ERANGE}, - {"1e400000", "+Inf", os.ERANGE}, - {"-1e400000", "-Inf", os.ERANGE}, - - // denormalized - {"1e-305", "1e-305", nil}, - {"1e-306", "1e-306", nil}, - {"1e-307", "1e-307", nil}, - {"1e-308", "1e-308", nil}, - {"1e-309", "1e-309", nil}, - {"1e-310", "1e-310", nil}, - {"1e-322", "1e-322", nil}, - // smallest denormal - {"5e-324", "5e-324", nil}, - {"4e-324", "5e-324", nil}, - {"3e-324", "5e-324", nil}, - // too small - {"2e-324", "0", nil}, - // way too small - {"1e-350", "0", nil}, - {"1e-400000", "0", nil}, - - // try to overflow exponent - {"1e-4294967296", "0", nil}, - {"1e+4294967296", "+Inf", os.ERANGE}, - {"1e-18446744073709551616", "0", nil}, - {"1e+18446744073709551616", "+Inf", os.ERANGE}, - - // Parse errors - {"1e", "0", os.EINVAL}, - {"1e-", "0", os.EINVAL}, - {".e-1", "0", os.EINVAL}, - - // http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ - {"2.2250738585072012e-308", "2.2250738585072014e-308", nil}, - // http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/ - {"2.2250738585072011e-308", "2.225073858507201e-308", nil}, -} - -func init() { - // The atof routines return NumErrors wrapping - // the error and the string. Convert the table above. - for i := range atoftests { - test := &atoftests[i] - if test.err != nil { - test.err = &NumError{test.in, test.err} - } - } -} - -func testAtof(t *testing.T, opt bool) { - oldopt := SetOptimize(opt) - for i := 0; i < len(atoftests); i++ { - test := &atoftests[i] - out, err := Atof64(test.in) - outs := Ftoa64(out, 'g', -1) - if outs != test.out || !reflect.DeepEqual(err, test.err) { - t.Errorf("Atof64(%v) = %v, %v want %v, %v", - test.in, out, err, test.out, test.err) - } - - out, err = AtofN(test.in, 64) - outs = FtoaN(out, 'g', -1, 64) - if outs != test.out || !reflect.DeepEqual(err, test.err) { - t.Errorf("AtofN(%v, 64) = %v, %v want %v, %v", - test.in, out, err, test.out, test.err) - } - - if float64(float32(out)) == out { - out32, err := Atof32(test.in) - outs := Ftoa32(out32, 'g', -1) - if outs != test.out || !reflect.DeepEqual(err, test.err) { - t.Errorf("Atof32(%v) = %v, %v want %v, %v # %v", - test.in, out32, err, test.out, test.err, out) - } - - out, err := AtofN(test.in, 32) - out32 = float32(out) - outs = FtoaN(float64(out32), 'g', -1, 32) - if outs != test.out || !reflect.DeepEqual(err, test.err) { - t.Errorf("AtofN(%v, 32) = %v, %v want %v, %v # %v", - test.in, out32, err, test.out, test.err, out) - } - } - } - SetOptimize(oldopt) -} - -func TestAtof(t *testing.T) { testAtof(t, true) } - -func TestAtofSlow(t *testing.T) { testAtof(t, false) } - -func BenchmarkAtof64Decimal(b *testing.B) { - for i := 0; i < b.N; i++ { - Atof64("33909") - } -} - -func BenchmarkAtof64Float(b *testing.B) { - for i := 0; i < b.N; i++ { - Atof64("339.7784") - } -} - -func BenchmarkAtof64FloatExp(b *testing.B) { - for i := 0; i < b.N; i++ { - Atof64("-5.09e75") - } -} - -func BenchmarkAtof64Big(b *testing.B) { - for i := 0; i < b.N; i++ { - Atof64("123456789123456789123456789") - } -} |