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      1 // Go support for Protocol Buffers - Google's data interchange format
      2 //
      3 // Copyright 2016 The Go Authors.  All rights reserved.
      4 // https://github.com/golang/protobuf
      5 //
      6 // Redistribution and use in source and binary forms, with or without
      7 // modification, are permitted provided that the following conditions are
      8 // met:
      9 //
     10 //     * Redistributions of source code must retain the above copyright
     11 // notice, this list of conditions and the following disclaimer.
     12 //     * Redistributions in binary form must reproduce the above
     13 // copyright notice, this list of conditions and the following disclaimer
     14 // in the documentation and/or other materials provided with the
     15 // distribution.
     16 //     * Neither the name of Google Inc. nor the names of its
     17 // contributors may be used to endorse or promote products derived from
     18 // this software without specific prior written permission.
     19 //
     20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31 
     32 package ptypes
     33 
     34 import (
     35 	"math"
     36 	"testing"
     37 	"time"
     38 
     39 	"github.com/golang/protobuf/proto"
     40 	durpb "github.com/golang/protobuf/ptypes/duration"
     41 )
     42 
     43 const (
     44 	minGoSeconds = math.MinInt64 / int64(1e9)
     45 	maxGoSeconds = math.MaxInt64 / int64(1e9)
     46 )
     47 
     48 var durationTests = []struct {
     49 	proto   *durpb.Duration
     50 	isValid bool
     51 	inRange bool
     52 	dur     time.Duration
     53 }{
     54 	// The zero duration.
     55 	{&durpb.Duration{Seconds: 0, Nanos: 0}, true, true, 0},
     56 	// Some ordinary non-zero durations.
     57 	{&durpb.Duration{Seconds: 100, Nanos: 0}, true, true, 100 * time.Second},
     58 	{&durpb.Duration{Seconds: -100, Nanos: 0}, true, true, -100 * time.Second},
     59 	{&durpb.Duration{Seconds: 100, Nanos: 987}, true, true, 100*time.Second + 987},
     60 	{&durpb.Duration{Seconds: -100, Nanos: -987}, true, true, -(100*time.Second + 987)},
     61 	// The largest duration representable in Go.
     62 	{&durpb.Duration{Seconds: maxGoSeconds, Nanos: int32(math.MaxInt64 - 1e9*maxGoSeconds)}, true, true, math.MaxInt64},
     63 	// The smallest duration representable in Go.
     64 	{&durpb.Duration{Seconds: minGoSeconds, Nanos: int32(math.MinInt64 - 1e9*minGoSeconds)}, true, true, math.MinInt64},
     65 	{nil, false, false, 0},
     66 	{&durpb.Duration{Seconds: -100, Nanos: 987}, false, false, 0},
     67 	{&durpb.Duration{Seconds: 100, Nanos: -987}, false, false, 0},
     68 	{&durpb.Duration{Seconds: math.MinInt64, Nanos: 0}, false, false, 0},
     69 	{&durpb.Duration{Seconds: math.MaxInt64, Nanos: 0}, false, false, 0},
     70 	// The largest valid duration.
     71 	{&durpb.Duration{Seconds: maxSeconds, Nanos: 1e9 - 1}, true, false, 0},
     72 	// The smallest valid duration.
     73 	{&durpb.Duration{Seconds: minSeconds, Nanos: -(1e9 - 1)}, true, false, 0},
     74 	// The smallest invalid duration above the valid range.
     75 	{&durpb.Duration{Seconds: maxSeconds + 1, Nanos: 0}, false, false, 0},
     76 	// The largest invalid duration below the valid range.
     77 	{&durpb.Duration{Seconds: minSeconds - 1, Nanos: -(1e9 - 1)}, false, false, 0},
     78 	// One nanosecond past the largest duration representable in Go.
     79 	{&durpb.Duration{Seconds: maxGoSeconds, Nanos: int32(math.MaxInt64-1e9*maxGoSeconds) + 1}, true, false, 0},
     80 	// One nanosecond past the smallest duration representable in Go.
     81 	{&durpb.Duration{Seconds: minGoSeconds, Nanos: int32(math.MinInt64-1e9*minGoSeconds) - 1}, true, false, 0},
     82 	// One second past the largest duration representable in Go.
     83 	{&durpb.Duration{Seconds: maxGoSeconds + 1, Nanos: int32(math.MaxInt64 - 1e9*maxGoSeconds)}, true, false, 0},
     84 	// One second past the smallest duration representable in Go.
     85 	{&durpb.Duration{Seconds: minGoSeconds - 1, Nanos: int32(math.MinInt64 - 1e9*minGoSeconds)}, true, false, 0},
     86 }
     87 
     88 func TestValidateDuration(t *testing.T) {
     89 	for _, test := range durationTests {
     90 		err := validateDuration(test.proto)
     91 		gotValid := (err == nil)
     92 		if gotValid != test.isValid {
     93 			t.Errorf("validateDuration(%v) = %t, want %t", test.proto, gotValid, test.isValid)
     94 		}
     95 	}
     96 }
     97 
     98 func TestDuration(t *testing.T) {
     99 	for _, test := range durationTests {
    100 		got, err := Duration(test.proto)
    101 		gotOK := (err == nil)
    102 		wantOK := test.isValid && test.inRange
    103 		if gotOK != wantOK {
    104 			t.Errorf("Duration(%v) ok = %t, want %t", test.proto, gotOK, wantOK)
    105 		}
    106 		if err == nil && got != test.dur {
    107 			t.Errorf("Duration(%v) = %v, want %v", test.proto, got, test.dur)
    108 		}
    109 	}
    110 }
    111 
    112 func TestDurationProto(t *testing.T) {
    113 	for _, test := range durationTests {
    114 		if test.isValid && test.inRange {
    115 			got := DurationProto(test.dur)
    116 			if !proto.Equal(got, test.proto) {
    117 				t.Errorf("DurationProto(%v) = %v, want %v", test.dur, got, test.proto)
    118 			}
    119 		}
    120 	}
    121 }
    122