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patch_test.go
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patch_test.go
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package jsonx
import (
"testing"
"github.com/mohae/deepcopy"
"github.com/stretchr/testify/require"
)
type TestType struct {
Field1 string
Field2 []string
Field3 struct {
Field1 bool
Field2 []int
}
}
func TestApplyJSONPatch(t *testing.T) {
object := TestType{
Field1: "foo",
Field2: []string{
"foo",
"bar",
"baz",
"kaz",
},
Field3: struct {
Field1 bool
Field2 []int
}{
Field1: true,
Field2: []int{
1,
2,
3,
},
},
}
t.Run("case=empty patch", func(t *testing.T) {
rawPatch := []byte(`[]`)
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, object, obj)
})
t.Run("case=field replace", func(t *testing.T) {
rawPatch := []byte(`[{"op": "replace", "path": "/Field1", "value": "boo"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field1 = "boo"
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=array replace", func(t *testing.T) {
rawPatch := []byte(`[{"op": "replace", "path": "/Field2/0", "value": "boo"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field2[0] = "boo"
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=array append", func(t *testing.T) {
rawPatch := []byte(`[{"op": "add", "path": "/Field2/-", "value": "boo"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field2 = append(expected.Field2, "boo")
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=array remove", func(t *testing.T) {
rawPatch := []byte(`[{"op": "remove", "path": "/Field2/0"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field2 = expected.Field2[1:]
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=nested field replace", func(t *testing.T) {
rawPatch := []byte(`[{"op": "replace", "path": "/Field3/Field1", "value": false}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field3.Field1 = false
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=nested array append", func(t *testing.T) {
rawPatch := []byte(`[{"op": "add", "path": "/Field3/Field2/-", "value": 4}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field3.Field2 = append(expected.Field3.Field2, 4)
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=nested array remove", func(t *testing.T) {
rawPatch := []byte(`[{"op": "remove", "path": "/Field3/Field2/2"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field3.Field2 = expected.Field3.Field2[:2]
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj))
require.Equal(t, expected, obj)
})
t.Run("case=patch denied path", func(t *testing.T) {
rawPatch := []byte(`[{"op": "replace", "path": "/Field1", "value": "bar"}]`)
obj := deepcopy.Copy(object).(TestType)
require.Error(t, ApplyJSONPatch(rawPatch, &obj, "/Field1"))
require.Equal(t, object, obj)
})
t.Run("case=patch allowed path", func(t *testing.T) {
rawPatch := []byte(`[{"op": "add", "path": "/Field2/-", "value": "bar"}]`)
expected := deepcopy.Copy(object).(TestType)
expected.Field2 = append(expected.Field2, "bar")
obj := deepcopy.Copy(object).(TestType)
require.NoError(t, ApplyJSONPatch(rawPatch, &obj, "/Field1"))
require.Equal(t, expected, obj)
})
t.Run("suite=invalid patches", func(t *testing.T) {
cases := []struct {
name string
patch []byte
}{{
name: "test",
patch: []byte(`[{"op": "test", "path": "/"}]`),
}, {
name: "add",
patch: []byte(`[{"op": "add", "path": "/"}]`),
}, {
name: "remove",
patch: []byte(`[{"op": "add", "path": "/"}]`),
}, {
name: "replace",
patch: []byte(`[{"op": "add", "path": "/"}]`),
}}
for _, tc := range cases {
t.Run(tc.name, func(_ *testing.T) {
obj := &TestType{}
ApplyJSONPatch(tc.patch, &obj)
})
}
})
}