/
custom_js_test.go
177 lines (167 loc) · 3.97 KB
/
custom_js_test.go
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package codec
import (
"fmt"
"testing"
"github.com/pkg/errors"
. "github.com/smartystreets/goconvey/convey"
)
func TestCustomJSDecode(t *testing.T) {
Convey("Given a set of tests", t, func() {
tests := []struct {
Name string
Script string
Payload []byte
FPort uint8
ExpectedObject map[string]interface{}
ExpectedJSON string
ExpectedError error
}{
{
Name: "valid function",
Script: `
function Decode(port, bytes) {
return {
"port": port,
"on": bytes[0] == 1
};
}
`,
Payload: []byte{1},
FPort: 3,
ExpectedObject: map[string]interface{}{
"port": 3,
"on": true,
},
ExpectedJSON: `{"on":true,"port":3}`,
},
{
Name: "function error",
Script: ``,
Payload: []byte{1},
FPort: 3,
ExpectedError: errors.New("js vm error: ReferenceError: 'Decode' is not defined"),
},
{
Name: "function timeout",
Script: `
function Decode(fPort, bytes) {
while(true) {}
}
`,
Payload: []byte{1},
FPort: 3,
ExpectedError: errors.New("execution timeout"),
},
}
for i, test := range tests {
Convey(fmt.Sprintf("Testing: %s [%d]", test.Name, i), func() {
js := NewCustomJS(test.FPort, "", test.Script)
err := js.DecodeBytes(test.Payload)
if test.ExpectedError != nil {
So(err, ShouldNotBeNil)
So(err.Error(), ShouldEqual, test.ExpectedError.Error())
return
}
So(err, ShouldEqual, nil)
for k, v := range test.ExpectedObject {
So(js.Data.(map[string]interface{})[k], ShouldEqual, v)
}
b, err := js.MarshalJSON()
So(err, ShouldBeNil)
So(string(b), ShouldEqual, test.ExpectedJSON)
})
}
})
}
func TestCustomEncodeJS(t *testing.T) {
Convey("Given a set of tests", t, func() {
tests := []struct {
Name string
Script string
JSON string
FPort uint8
ExpectedBytes []byte
ExpectedError error
}{
{
Name: "valid function",
Script: `
function Encode(fPort, obj) {
var bytes = [];
bytes[0] = obj.Temp;
bytes[1] = fPort;
return bytes;
}
`,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedBytes: []byte{20, 10},
},
{
Name: "return []int64",
Script: `
function Encode(fPort, obj) {
return [1,2,3];
}
`,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedBytes: []byte{1, 2, 3},
},
{
Name: "return float array",
Script: `
function Encode(fPort, obj) {
return [1.123, 2.234];
}
`,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedError: errors.New("array value must be in byte range (0 - 255), got: 1.123000"),
},
{
Name: "return invalid bytes",
Script: `
function Encode(fPort, obj) {
return [256, 123];
}
`,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedError: errors.New("array value must be in byte range (0 - 255), got: 256"),
},
{
Name: "invalid function",
Script: ``,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedError: errors.New("js vm error: ReferenceError: 'Encode' is not defined"),
},
{
Name: "function timeout",
Script: `
function Encode(fPort, obj) {
while(true) {}
}
`,
FPort: 10,
JSON: `{"Temp": 20}`,
ExpectedError: errors.New("execution timeout"),
},
}
for i, test := range tests {
Convey(fmt.Sprintf("Testing: %s [%d]", test.Name, i), func() {
js := NewCustomJS(test.FPort, test.Script, "")
So(js.UnmarshalJSON([]byte(test.JSON)), ShouldBeNil)
b, err := js.EncodeToBytes()
if test.ExpectedError != nil {
So(err, ShouldNotBeNil)
So(err.Error(), ShouldEqual, test.ExpectedError.Error())
return
}
So(err, ShouldEqual, nil)
So(b, ShouldResemble, test.ExpectedBytes)
})
}
})
}