func testPutGetDeleteExists(t *testing.T, kv store.Store) { key := "testfoo" value := []byte("bar") // Put the key err := kv.Put(key, value, nil) assert.NoError(t, err) // Get should return the value and an incremented index pair, err := kv.Get(key) assert.NoError(t, err) if assert.NotNil(t, pair) { assert.NotNil(t, pair.Value) } assert.Equal(t, pair.Value, value) assert.NotEqual(t, pair.LastIndex, 0) // Get a not exist key should return ErrKeyNotFound pair, err = kv.Get("/testPutGetDelete_not_exist_key") assert.Equal(t, store.ErrKeyNotFound, err) // Exists should return true exists, err := kv.Exists(key) assert.NoError(t, err) assert.True(t, exists) // Delete the key err = kv.Delete(key) assert.NoError(t, err) // Get should fail pair, err = kv.Get(key) assert.Error(t, err) assert.Nil(t, pair) // Exists should return false exists, err = kv.Exists(key) assert.NoError(t, err) assert.False(t, exists) }