duration_test.go

Documentation: github.com/golang/protobuf/ptypes

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package ptypes
     6  
     7  import (
     8  	"math"
     9  	"testing"
    10  	"time"
    11  
    12  	"github.com/golang/protobuf/proto"
    13  
    14  	durpb "github.com/golang/protobuf/ptypes/duration"
    15  )
    16  
    17  const (
    18  	minGoSeconds = math.MinInt64 / int64(1e9)
    19  	maxGoSeconds = math.MaxInt64 / int64(1e9)
    20  )
    21  
    22  var durationTests = []struct {
    23  	proto   *durpb.Duration
    24  	isValid bool
    25  	inRange bool
    26  	dur     time.Duration
    27  }{
    28  	// The zero duration.
    29  	{&durpb.Duration{Seconds: 0, Nanos: 0}, true, true, 0},
    30  	// Some ordinary non-zero durations.
    31  	{&durpb.Duration{Seconds: 100, Nanos: 0}, true, true, 100 * time.Second},
    32  	{&durpb.Duration{Seconds: -100, Nanos: 0}, true, true, -100 * time.Second},
    33  	{&durpb.Duration{Seconds: 100, Nanos: 987}, true, true, 100*time.Second + 987},
    34  	{&durpb.Duration{Seconds: -100, Nanos: -987}, true, true, -(100*time.Second + 987)},
    35  	// The largest duration representable in Go.
    36  	{&durpb.Duration{Seconds: maxGoSeconds, Nanos: int32(math.MaxInt64 - 1e9*maxGoSeconds)}, true, true, math.MaxInt64},
    37  	// The smallest duration representable in Go.
    38  	{&durpb.Duration{Seconds: minGoSeconds, Nanos: int32(math.MinInt64 - 1e9*minGoSeconds)}, true, true, math.MinInt64},
    39  	{nil, false, false, 0},
    40  	{&durpb.Duration{Seconds: -100, Nanos: 987}, false, false, 0},
    41  	{&durpb.Duration{Seconds: 100, Nanos: -987}, false, false, 0},
    42  	{&durpb.Duration{Seconds: math.MinInt64, Nanos: 0}, false, false, 0},
    43  	{&durpb.Duration{Seconds: math.MaxInt64, Nanos: 0}, false, false, 0},
    44  	// The largest valid duration.
    45  	{&durpb.Duration{Seconds: maxSeconds, Nanos: 1e9 - 1}, true, false, 0},
    46  	// The smallest valid duration.
    47  	{&durpb.Duration{Seconds: minSeconds, Nanos: -(1e9 - 1)}, true, false, 0},
    48  	// The smallest invalid duration above the valid range.
    49  	{&durpb.Duration{Seconds: maxSeconds + 1, Nanos: 0}, false, false, 0},
    50  	// The largest invalid duration below the valid range.
    51  	{&durpb.Duration{Seconds: minSeconds - 1, Nanos: -(1e9 - 1)}, false, false, 0},
    52  	// One nanosecond past the largest duration representable in Go.
    53  	{&durpb.Duration{Seconds: maxGoSeconds, Nanos: int32(math.MaxInt64-1e9*maxGoSeconds) + 1}, true, false, 0},
    54  	// One nanosecond past the smallest duration representable in Go.
    55  	{&durpb.Duration{Seconds: minGoSeconds, Nanos: int32(math.MinInt64-1e9*minGoSeconds) - 1}, true, false, 0},
    56  	// One second past the largest duration representable in Go.
    57  	{&durpb.Duration{Seconds: maxGoSeconds + 1, Nanos: int32(math.MaxInt64 - 1e9*maxGoSeconds)}, true, false, 0},
    58  	// One second past the smallest duration representable in Go.
    59  	{&durpb.Duration{Seconds: minGoSeconds - 1, Nanos: int32(math.MinInt64 - 1e9*minGoSeconds)}, true, false, 0},
    60  }
    61  
    62  func TestValidateDuration(t *testing.T) {
    63  	for _, test := range durationTests {
    64  		err := validateDuration(test.proto)
    65  		gotValid := (err == nil)
    66  		if gotValid != test.isValid {
    67  			t.Errorf("validateDuration(%v) = %t, want %t", test.proto, gotValid, test.isValid)
    68  		}
    69  	}
    70  }
    71  
    72  func TestDuration(t *testing.T) {
    73  	for _, test := range durationTests {
    74  		got, err := Duration(test.proto)
    75  		gotOK := (err == nil)
    76  		wantOK := test.isValid && test.inRange
    77  		if gotOK != wantOK {
    78  			t.Errorf("Duration(%v) ok = %t, want %t", test.proto, gotOK, wantOK)
    79  		}
    80  		if err == nil && got != test.dur {
    81  			t.Errorf("Duration(%v) = %v, want %v", test.proto, got, test.dur)
    82  		}
    83  	}
    84  }
    85  
    86  func TestDurationProto(t *testing.T) {
    87  	for _, test := range durationTests {
    88  		if test.isValid && test.inRange {
    89  			got := DurationProto(test.dur)
    90  			if !proto.Equal(got, test.proto) {
    91  				t.Errorf("DurationProto(%v) = %v, want %v", test.dur, got, test.proto)
    92  			}
    93  		}
    94  	}
    95  }
    96
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