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82 lines
3.1 KiB
82 lines
3.1 KiB
// Copyright (c) 2020 Uber Technologies, Inc. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to deal |
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// in the Software without restriction, including without limitation the rights |
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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// copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in |
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// all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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// THE SOFTWARE. |
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package atomic |
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import ( |
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"encoding/json" |
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"math" |
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"testing" |
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"github.com/stretchr/testify/assert" |
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"github.com/stretchr/testify/require" |
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) |
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func TestInt64(t *testing.T) { |
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atom := NewInt64(42) |
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require.Equal(t, int64(42), atom.Load(), "Load didn't work.") |
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require.Equal(t, int64(46), atom.Add(4), "Add didn't work.") |
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require.Equal(t, int64(44), atom.Sub(2), "Sub didn't work.") |
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require.Equal(t, int64(45), atom.Inc(), "Inc didn't work.") |
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require.Equal(t, int64(44), atom.Dec(), "Dec didn't work.") |
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require.True(t, atom.CAS(44, 0), "CAS didn't report a swap.") |
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require.Equal(t, int64(0), atom.Load(), "CAS didn't set the correct value.") |
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require.Equal(t, int64(0), atom.Swap(1), "Swap didn't return the old value.") |
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require.Equal(t, int64(1), atom.Load(), "Swap didn't set the correct value.") |
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atom.Store(42) |
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require.Equal(t, int64(42), atom.Load(), "Store didn't set the correct value.") |
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t.Run("JSON/Marshal", func(t *testing.T) { |
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bytes, err := json.Marshal(atom) |
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require.NoError(t, err, "json.Marshal errored unexpectedly.") |
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require.Equal(t, []byte("42"), bytes, "json.Marshal encoded the wrong bytes.") |
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}) |
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t.Run("JSON/Unmarshal", func(t *testing.T) { |
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err := json.Unmarshal([]byte("40"), &atom) |
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require.NoError(t, err, "json.Unmarshal errored unexpectedly.") |
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require.Equal(t, int64(40), atom.Load(), "json.Unmarshal didn't set the correct value.") |
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}) |
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t.Run("JSON/Unmarshal/Error", func(t *testing.T) { |
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err := json.Unmarshal([]byte(`"40"`), &atom) |
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require.Error(t, err, "json.Unmarshal didn't error as expected.") |
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assertErrorJSONUnmarshalType(t, err, |
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"json.Unmarshal failed with unexpected error %v, want UnmarshalTypeError.", err) |
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}) |
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t.Run("String", func(t *testing.T) { |
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t.Run("positive", func(t *testing.T) { |
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atom := NewInt64(math.MaxInt64) |
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assert.Equal(t, "9223372036854775807", atom.String(), |
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"String() returned an unexpected value.") |
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}) |
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t.Run("negative", func(t *testing.T) { |
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atom := NewInt64(math.MinInt64) |
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assert.Equal(t, "-9223372036854775808", atom.String(), |
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"String() returned an unexpected value.") |
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}) |
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}) |
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}
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