76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
package utils
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import (
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"fmt"
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"io"
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"os"
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestCacheGetPutDelete(t *testing.T) {
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memory := NewCacheMemory(1024, 10240)
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require.NoError(t, memory.Put("hello", strings.NewReader("world")))
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value, err := memory.Get("hello")
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require.NoError(t, err)
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all, err := io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "world", string(all))
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require.Equal(t, 5, memory.current)
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require.NoError(t, memory.Put("hello", strings.NewReader("kotlin")))
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value, err = memory.Get("hello")
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require.NoError(t, err)
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all, err = io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "kotlin", string(all))
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require.Equal(t, 6, memory.current)
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require.Equal(t, 1, len(memory.data))
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require.NoError(t, memory.Put("data", strings.NewReader("kotlin")))
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require.Equal(t, 12, memory.current)
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require.Equal(t, 2, len(memory.data))
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require.Equal(t, 2, len(memory.ordered))
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require.NoError(t, memory.Delete("hello"))
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value, err = memory.Get("hello")
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require.Error(t, err)
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require.Equal(t, 1, len(memory.data))
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require.Equal(t, 1, len(memory.ordered))
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require.NoError(t, memory.Put("hello", nil))
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value, err = memory.Get("hello")
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require.NoError(t, err)
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require.Nil(t, value)
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}
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func TestCacheLimit(t *testing.T) {
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memory := NewCacheMemory(5, 5*5)
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require.NoError(t, memory.Put("hello", strings.NewReader("world")))
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require.Equal(t, 5, memory.current)
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require.ErrorIs(t, memory.Put("hello", strings.NewReader("world1")), ErrCacheOutOfMemory)
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require.Equal(t, 5, memory.current)
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for i := 0; i < 4; i++ {
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require.NoError(t, memory.Put(fmt.Sprintf("hello-%d", i), strings.NewReader("govet")))
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}
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value, err := memory.Get("hello")
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require.NoError(t, err)
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all, err := io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "world", string(all))
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require.NoError(t, memory.Put("test", strings.NewReader("govet")))
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value, err = memory.Get("hello")
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require.ErrorIs(t, err, os.ErrNotExist)
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require.Equal(t, 5, len(memory.data))
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require.Equal(t, 5, len(memory.ordered))
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require.Equal(t, 5, len(memory.lastModify))
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}
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