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Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/go.uber.org/zap@v1.23.0/buffer/buffer_test.go | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/buffer/buffer_test.go b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/buffer/buffer_test.go new file mode 100644 index 0000000..71ffac1 --- /dev/null +++ b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/buffer/buffer_test.go @@ -0,0 +1,95 @@ +// Copyright (c) 2016 Uber Technologies, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +package buffer + +import ( + "bytes" + "strings" + "testing" + "time" + + "github.com/stretchr/testify/assert" +) + +func TestBufferWrites(t *testing.T) { + buf := NewPool().Get() + + tests := []struct { + desc string + f func() + want string + }{ + {"AppendByte", func() { buf.AppendByte('v') }, "v"}, + {"AppendString", func() { buf.AppendString("foo") }, "foo"}, + {"AppendIntPositive", func() { buf.AppendInt(42) }, "42"}, + {"AppendIntNegative", func() { buf.AppendInt(-42) }, "-42"}, + {"AppendUint", func() { buf.AppendUint(42) }, "42"}, + {"AppendBool", func() { buf.AppendBool(true) }, "true"}, + {"AppendFloat64", func() { buf.AppendFloat(3.14, 64) }, "3.14"}, + // Intentionally introduce some floating-point error. + {"AppendFloat32", func() { buf.AppendFloat(float64(float32(3.14)), 32) }, "3.14"}, + {"AppendWrite", func() { buf.Write([]byte("foo")) }, "foo"}, + {"AppendTime", func() { buf.AppendTime(time.Date(2000, 1, 2, 3, 4, 5, 6, time.UTC), time.RFC3339) }, "2000-01-02T03:04:05Z"}, + {"WriteByte", func() { buf.WriteByte('v') }, "v"}, + {"WriteString", func() { buf.WriteString("foo") }, "foo"}, + } + + for _, tt := range tests { + t.Run(tt.desc, func(t *testing.T) { + buf.Reset() + tt.f() + assert.Equal(t, tt.want, buf.String(), "Unexpected buffer.String().") + assert.Equal(t, tt.want, string(buf.Bytes()), "Unexpected string(buffer.Bytes()).") + assert.Equal(t, len(tt.want), buf.Len(), "Unexpected buffer length.") + // We're not writing more than a kibibyte in tests. + assert.Equal(t, _size, buf.Cap(), "Expected buffer capacity to remain constant.") + }) + } +} + +func BenchmarkBuffers(b *testing.B) { + // Because we use the strconv.AppendFoo functions so liberally, we can't + // use the standard library's bytes.Buffer anyways (without incurring a + // bunch of extra allocations). Nevertheless, let's make sure that we're + // not losing any precious nanoseconds. + str := strings.Repeat("a", 1024) + slice := make([]byte, 1024) + buf := bytes.NewBuffer(slice) + custom := NewPool().Get() + b.Run("ByteSlice", func(b *testing.B) { + for i := 0; i < b.N; i++ { + slice = append(slice, str...) + slice = slice[:0] + } + }) + b.Run("BytesBuffer", func(b *testing.B) { + for i := 0; i < b.N; i++ { + buf.WriteString(str) + buf.Reset() + } + }) + b.Run("CustomBuffer", func(b *testing.B) { + for i := 0; i < b.N; i++ { + custom.AppendString(str) + custom.Reset() + } + }) +} |