code review 4092045: strconv: add test that trips up other implementations

src/pkg/strconv/ftoa_test.go

 // 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 (
         "math"
         . "strconv"
         "testing"
@@ skipping 100 matching lines @@
 
         // fixed bugs
         {0.9, 'f', 1, "0.9"},
         {0.09, 'f', 1, "0.1"},
         {0.0999, 'f', 1, "0.1"},
         {0.05, 'f', 1, "0.1"},
         {0.05, 'f', 0, "0"},
         {0.5, 'f', 1, "0.5"},
         {0.5, 'f', 0, "0"},
         {1.5, 'f', 0, "2"},
-        
+
         // http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/
         {2.2250738585072012e-308, 'g', -1, "2.2250738585072014e-308"},
         // TODO: uncomment after fixing issue 1463.
         // http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/
         // {2.2250738585072011e-308, 'g', -1, "2.225073858507201e-308"},
 }
 
 func TestFtoa(t *testing.T) {
         for i := 0; i < len(ftoatests); i++ {
                 test := &ftoatests[i]
@@ skipping 10 matching lines @@
                         if s != test.s {
                                 t.Error("test32", test.f, string(test.fmt), test.prec, "want", test.s, "got", s)
                         }
                         s = FtoaN(test.f, test.fmt, test.prec, 32)
                         if s != test.s {
                                 t.Error("testN=32", test.f, string(test.fmt), test.prec, "want", test.s, "got", s)
                         }
                 }
         }
 }