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apply_func_test.go
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apply_func_test.go
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package test
import (
"./fake"
"encoding/json"
. "github.com/agiledragon/gomonkey"
. "github.com/smartystreets/goconvey/convey"
"testing"
)
var (
outputExpect = "xxx-vethName100-yyy"
)
func TestApplyFunc(t *testing.T) {
Convey("TestApplyFunc", t, func() {
Convey("one func for succ", func() {
patches := ApplyFunc(fake.Exec, func(_ string, _ ...string) (string, error) {
return outputExpect, nil
})
defer patches.Reset()
output, err := fake.Exec("", "")
So(err, ShouldEqual, nil)
So(output, ShouldEqual, outputExpect)
})
Convey("one func for fail", func() {
patches := ApplyFunc(fake.Exec, func(_ string, _ ...string) (string, error) {
return "", fake.ErrActual
})
defer patches.Reset()
output, err := fake.Exec("", "")
So(err, ShouldEqual, fake.ErrActual)
So(output, ShouldEqual, "")
})
Convey("two funcs", func() {
patches := ApplyFunc(fake.Exec, func(_ string, _ ...string) (string, error) {
return outputExpect, nil
})
defer patches.Reset()
patches.ApplyFunc(fake.Belong, func(_ string, _ []string) bool {
return true
})
output, err := fake.Exec("", "")
So(err, ShouldEqual, nil)
So(output, ShouldEqual, outputExpect)
flag := fake.Belong("", nil)
So(flag, ShouldBeTrue)
})
Convey("input and output param", func() {
patches := ApplyFunc(json.Unmarshal, func(data []byte, v interface{}) error {
if data == nil {
panic("input param is nil!")
}
p := v.(*map[int]int)
*p = make(map[int]int)
(*p)[1] = 2
(*p)[2] = 4
return nil
})
defer patches.Reset()
var m map[int]int
err := json.Unmarshal([]byte("123"), &m)
So(err, ShouldEqual, nil)
So(m[1], ShouldEqual, 2)
So(m[2], ShouldEqual, 4)
})
})
}