mirror of
https://github.com/hanzozt/foundation.git
synced 2026-10-30 14:42:04 +00:00
Paul Lorenz
95a4bfc777
* move util up a level * rename common to versions * remove pfxlog from versions * remove neatcat and echo server * move udp code to transport * remove agent, identity and metrics, which have been split out * remove config which was unused
95 lines
1.6 KiB
Go
95 lines
1.6 KiB
Go
package cowslice
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import (
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"github.com/stretchr/testify/require"
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"testing"
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)
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type testHandler interface {
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Accept(val struct{})
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}
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type testHandlerImpl struct{}
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func (t testHandlerImpl) Accept(val struct{}) {
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panic("implement me")
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}
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type testHandlerImpl2 struct{}
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func (t testHandlerImpl2) Accept(val struct{}) {
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panic("implement me")
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}
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func TestCowSlice_Append(t *testing.T) {
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req := require.New(t)
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cw := NewCowSlice(make([]testHandler, 0))
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req.NotNil(cw.Value())
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h := &testHandlerImpl{}
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Append(cw, h)
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cur := cw.Value()
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req.NotNil(cur)
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tc := cur.([]testHandler)
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req.Equal(1, len(tc))
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req.Equal(h, tc[0])
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h2 := &testHandlerImpl2{}
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Append(cw, h2)
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cur = cw.Value()
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req.NotNil(cur)
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tc = cur.([]testHandler)
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req.Equal(2, len(tc))
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req.Equal(h, tc[0])
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req.Equal(h2, tc[1])
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Delete(cw, h)
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cur = cw.Value()
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req.NotNil(cur)
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tc = cur.([]testHandler)
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req.Equal(1, len(tc))
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req.Equal(h2, tc[0])
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Delete(cw, h2)
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cur = cw.Value()
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req.NotNil(cur)
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tc = cur.([]testHandler)
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req.Equal(0, len(tc))
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}
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func TestCloseSlice_Delete(t *testing.T) {
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t.Run("adding and removing a single element succeeds", func(t *testing.T) {
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req := require.New(t)
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cw := NewCowSlice(make([]testHandler, 0))
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h := &testHandlerImpl{}
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Append(cw, h)
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Delete(cw, h)
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cur := cw.Value()
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req.NotNil(cur)
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tc, ok := cur.([]testHandler)
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req.True(ok)
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req.Equal(0, len(tc))
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})
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t.Run("delete on empty cow slice does not panic", func(t *testing.T) {
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req := require.New(t)
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cw := NewCowSlice(make([]testHandler, 0))
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h := &testHandlerImpl{}
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Delete(cw, h)
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cur := cw.Value()
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req.NotNil(cur)
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tc, ok := cur.([]testHandler)
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req.True(ok)
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req.Equal(0, len(tc))
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})
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}
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