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package testing
import (
"bytes"
"encoding/json"
"fmt"
"sort"
"strings"
"github.com/aws/smithy-go/testing/xml"
"github.com/google/go-cmp/cmp"
)
// JSONEqual compares two JSON documents and identifies if the documents contain
// the same values. Returns an error if the two documents are not equal.
func JSONEqual(expectBytes, actualBytes []byte) error {
var expect interface{}
if err := json.Unmarshal(expectBytes, &expect); err != nil {
return fmt.Errorf("failed to unmarshal expected bytes, %v", err)
}
var actual interface{}
if err := json.Unmarshal(actualBytes, &actual); err != nil {
return fmt.Errorf("failed to unmarshal actual bytes, %v", err)
}
if diff := cmp.Diff(expect, actual); len(diff) != 0 {
return fmt.Errorf("JSON mismatch (-expect +actual):\n%s", diff)
}
return nil
}
// AssertJSONEqual compares two JSON documents and identifies if the documents
// contain the same values. Emits a testing error, and returns false if the
// documents are not equal.
func AssertJSONEqual(t T, expect, actual []byte) bool {
t.Helper()
if err := JSONEqual(expect, actual); err != nil {
t.Errorf("expect JSON documents to be equal, %v", err)
return false
}
return true
}
// XMLEqual asserts two xml documents by sorting the XML and comparing the strings
// It returns an error in case of mismatch or in case of malformed xml found while sorting.
// In case of mismatched XML, the error string will contain the diff between the two XMLs.
func XMLEqual(expectBytes, actualBytes []byte) error {
actualString, err := xml.SortXML(bytes.NewBuffer(actualBytes), true)
if err != nil {
return err
}
expectedString, err := xml.SortXML(bytes.NewBuffer(expectBytes), true)
if err != nil {
return err
}
if diff := cmp.Diff(actualString, expectedString); len(diff) != 0 {
return fmt.Errorf("XML mismatch (-expect +actual):\n%s", diff)
}
return nil
}
// AssertXMLEqual compares two XML documents and identifies if the documents
// contain the same values. Emits a testing error, and returns false if the
// documents are not equal.
func AssertXMLEqual(t T, expect, actual []byte) bool {
t.Helper()
if err := XMLEqual(expect, actual); err != nil {
t.Errorf("expect XML documents to be equal, %v", err)
return false
}
return true
}
// URLFormEqual compares two URLForm documents and identifies if the documents
// contain the same values. Returns an error if the two documents are not
// equal.
func URLFormEqual(expectBytes, actualBytes []byte) error {
if diff := cmp.Diff(parseFormBody(expectBytes), parseFormBody(actualBytes)); len(diff) != 0 {
return fmt.Errorf("Query mismatch (-expect +actual):\n%s", diff)
}
return nil
}
func parseFormBody(bytes []byte) []QueryItem {
str := string(bytes)
// Strip out any whitespace. Significant whitespace will be encoded, and so
// won't be stripped.
str = strings.Join(strings.Fields(str), "")
parsed := ParseRawQuery(str)
sort.SliceStable(parsed, func(i, j int) bool {
return parsed[i].Key < parsed[j].Key
})
return parsed
}
// AssertURLFormEqual compares two URLForm documents and identifies if the
// documents contain the same values. Emits a testing error, and returns false
// if the documents are not equal.
func AssertURLFormEqual(t T, expect, actual []byte) bool {
t.Helper()
if err := URLFormEqual(expect, actual); err != nil {
t.Errorf("expect URLForm documents to be equal, %v", err)
return false
}
return true
}
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