forked from p93542168/wheat-cache
54 lines
1.1 KiB
Markdown
54 lines
1.1 KiB
Markdown
### 单元测试文档
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#### 样例
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```go
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package dao
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import (
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"testing"
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_ "gitee.com/timedb/wheatCache/conf"
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"gitee.com/timedb/wheatCache/pkg/lru"
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"gitee.com/timedb/wheatCache/pkg/proto"
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"github.com/stretchr/testify/require"
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)
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// 规范1. 每个 package 应该都至少有一个单测
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// 规范2. 包里有公用的 mock 数据应该分离出来。
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func mockData(t *testing.T, d *Dao) {
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values := []string{"1", "1.3", "abcdefg"}
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for _, val := range values {
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key := &proto.BaseKey{
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Key: val,
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}
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_, err := d.Set(key, val)
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// 规范3. 使用 require 包来完成单测
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require.NoError(t, err)
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}
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}
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// 规范4. 单元测试应该尽可能覆盖全部情况，不要使用依赖注入。
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func TestDao_Reduce(t *testing.T) {
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lruCache := lru.NewLRUCache()
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dao := NewDao(lruCache)
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mockData(t, dao)
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resp, err := dao.Reduce(&proto.BaseKey{Key: "1"}, 2)
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require.NoError(t, err)
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require.Equal(t, resp, "-1")
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resp, err = dao.Reduce(&proto.BaseKey{Key: "1.3"}, 2)
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require.NoError(t, err)
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require.Equal(t, resp, "-0.70")
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_, err = dao.Reduce(&proto.BaseKey{Key: "abcdefg"}, 2)
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require.Error(t, err)
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}
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``` |