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package testing
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"io/ioutil"
)
// CompareReaderEmpty checks if the reader is nil, or contains no bytes.
// Returns an error if not empty.
func CompareReaderEmpty(r io.Reader) error {
if r == nil {
return nil
}
b, err := ioutil.ReadAll(r)
if err != nil && err != io.EOF {
return fmt.Errorf("unable to read from reader, %v", err)
}
if len(b) != 0 {
return fmt.Errorf("reader not empty, got\n%v", hex.Dump(b))
}
return nil
}
// CompareReaderBytes compares the reader with the expected bytes. Returns an
// error if the two bytes are not equal.
func CompareReaderBytes(r io.Reader, expect []byte) error {
if r == nil {
return fmt.Errorf("missing body")
}
actual, err := ioutil.ReadAll(r)
if err != nil {
return fmt.Errorf("unable to read, %v", err)
}
if !bytes.Equal(expect, actual) {
return fmt.Errorf("bytes not equal\nexpect:\n%v\nactual:\n%v",
hex.Dump(expect), hex.Dump(actual))
}
return nil
}
// CompareJSONReaderBytes compares the reader containing serialized JSON
// document. Deserializes the JSON documents to determine if they are equal.
// Return an error if the two JSON documents are not equal.
func CompareJSONReaderBytes(r io.Reader, expect []byte) error {
if r == nil {
return fmt.Errorf("missing body")
}
actual, err := ioutil.ReadAll(r)
if err != nil {
return fmt.Errorf("unable to read, %v", err)
}
if err := JSONEqual(expect, actual); err != nil {
return fmt.Errorf("JSON documents not equal, %v", err)
}
return nil
}
// CompareXMLReaderBytes compares the reader with expected xml byte
func CompareXMLReaderBytes(r io.Reader, expect []byte) error {
if r == nil {
return fmt.Errorf("missing body")
}
actual, err := ioutil.ReadAll(r)
if err != nil {
return err
}
if err := XMLEqual(expect, actual); err != nil {
return fmt.Errorf("XML documents not equal, %w", err)
}
return nil
}
// CompareURLFormReaderBytes compares the reader containing serialized URLForm
// document. Deserializes the URLForm documents to determine if they are equal.
// Return an error if the two URLForm documents are not equal.
func CompareURLFormReaderBytes(r io.Reader, expect []byte) error {
if r == nil {
return fmt.Errorf("missing body")
}
actual, err := ioutil.ReadAll(r)
if err != nil {
return fmt.Errorf("unable to read, %v", err)
}
if err := URLFormEqual(expect, actual); err != nil {
return fmt.Errorf("URL query forms not equal, %v", err)
}
return nil
}
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