code review 20050045: [release-branch.go1.2] time: fix ParseDuration overflow...

src/pkg/time/time_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 time_test
 
 import (
         "bytes"
         "encoding/gob"
         "encoding/json"
@@ skipping 1300 matching lines @@
         {"15m", true, 15 * Minute},
         {"16h", true, 16 * Hour},
         // composite durations
         {"3h30m", true, 3*Hour + 30*Minute},
         {"10.5s4m", true, 4*Minute + 10*Second + 500*Millisecond},
         {"-2m3.4s", true, -(2*Minute + 3*Second + 400*Millisecond)},
         {"1h2m3s4ms5us6ns", true, 1*Hour + 2*Minute + 3*Second + 4*Millisecond + 5*Microsecond + 6*Nanosecond},
         {"39h9m14.425s", true, 39*Hour + 9*Minute + 14*Second + 425*Millisecond},
         // large value
         {"52763797000ns", true, 52763797000 * Nanosecond},
+        // more than 9 digits after decimal point, see http://golang.org/issue/6617
+        {"0.3333333333333333333h", true, 20 * Minute},
 
         // errors
         {"", false, 0},
         {"3", false, 0},
         {"-", false, 0},
         {"s", false, 0},
         {".", false, 0},
         {"-.", false, 0},
         {".s", false, 0},
         {"+.s", false, 0},
@@ skipping 172 matching lines @@
                 _ = t.Year()
         }
 }
 
 func BenchmarkDay(b *testing.B) {
         t := Now()
         for i := 0; i < b.N; i++ {
                 _ = t.Day()
         }
 }