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ringbuffer_test.go
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110 lines (104 loc) · 2.11 KB
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package ringbuffer_test
import (
"testing"
"ringbuffer"
"github.com/stretchr/testify/assert"
)
type Message struct{ Id int }
func TestRingBuffer(t *testing.T) {
tests := []struct {
name string
size int
operations func(rb *ringbuffer.RingBuffer[Message]) Message
expectId int
}{
{
"Add 4 messages, expect Id 2",
3,
func(rb *ringbuffer.RingBuffer[Message]) Message {
rb.Add(Message{Id: 1})
rb.Add(Message{Id: 2})
rb.Add(Message{Id: 3})
rb.Add(Message{Id: 4})
msg, _ := rb.Get()
return msg
},
2,
},
{
"Add one more, expect Id 3",
3,
func(rb *ringbuffer.RingBuffer[Message]) Message {
rb.Add(Message{Id: 1})
rb.Add(Message{Id: 2})
rb.Add(Message{Id: 3})
rb.Add(Message{Id: 4})
rb.Get()
rb.Add(Message{Id: 5})
msg, _ := rb.Get()
return msg
},
3,
},
{
"Add multiple messages, expect Id 6",
3,
func(rb *ringbuffer.RingBuffer[Message]) Message {
rb.Add(Message{Id: 1})
rb.Add(Message{Id: 2})
rb.Add(Message{Id: 3})
rb.Add(Message{Id: 4})
rb.Get()
rb.Add(Message{Id: 5})
rb.Get()
rb.Add(Message{Id: 6})
rb.Add(Message{Id: 7})
rb.Add(Message{Id: 8})
msg, _ := rb.Get()
return msg
},
6,
},
{
"Add two more, expect Id 8",
3,
func(rb *ringbuffer.RingBuffer[Message]) Message {
rb.Add(Message{Id: 1})
rb.Add(Message{Id: 2})
rb.Add(Message{Id: 3})
rb.Add(Message{Id: 4})
rb.Get()
rb.Add(Message{Id: 5})
rb.Get()
rb.Add(Message{Id: 6})
rb.Add(Message{Id: 7})
rb.Add(Message{Id: 8})
rb.Get()
rb.Add(Message{Id: 9})
rb.Add(Message{Id: 10})
msg, _ := rb.Get()
return msg
},
8,
},
{
"Clear and add new messages, expect Id 11",
3,
func(rb *ringbuffer.RingBuffer[Message]) Message {
rb.Clear()
rb.Add(Message{Id: 11})
rb.Add(Message{Id: 12})
msg, _ := rb.Get()
return msg
},
11,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
rb := ringbuffer.New[Message](tt.size)
msg := tt.operations(rb)
assert.Equal(t, tt.expectId, msg.Id)
})
}
}