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// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package codes
import (
"bytes"
"encoding/json"
"fmt"
"testing"
)
func TestCodeString(t *testing.T) {
tests := []struct {
code Code
want string
}{
{Unset, "Unset"},
{Error, "Error"},
{Ok, "Ok"},
}
for _, test := range tests {
if got := test.code.String(); got != test.want {
t.Errorf("String of code %d %q, want %q", test.code, got, test.want)
}
}
}
func TestCodeUnmarshalJSONNull(t *testing.T) {
c := new(Code)
orig := c
if err := c.UnmarshalJSON([]byte("null")); err != nil {
t.Fatalf("Code.UnmarshalJSON(\"null\") errored: %v", err)
}
if orig != c {
t.Error("Code.UnmarshalJSON(\"null\") should not decode a value")
}
}
func TestCodeUnmarshalJSONNil(t *testing.T) {
c := (*Code)(nil)
if err := c.UnmarshalJSON([]byte{}); err == nil {
t.Fatalf("Code(nil).UnmarshalJSON() did not error")
}
}
func TestCodeUnmarshalJSON(t *testing.T) {
tests := []struct {
input string
want Code
}{
{"0", Unset},
{`"Unset"`, Unset},
{"1", Error},
{`"Error"`, Error},
{"2", Ok},
{`"Ok"`, Ok},
}
for _, test := range tests {
c := new(Code)
*c = Code(maxCode)
if err := json.Unmarshal([]byte(test.input), c); err != nil {
t.Fatalf("json.Unmarshal(%q, Code) errored: %v", test.input, err)
}
if *c != test.want {
t.Errorf("failed to unmarshal %q as %v", test.input, test.want)
}
}
}
func TestCodeUnmarshalJSONErrorInvalidData(t *testing.T) {
tests := []string{
fmt.Sprintf("%d", maxCode),
"Not a code",
"Unset",
"true",
`"Not existing"`,
"",
}
c := new(Code)
for _, test := range tests {
if err := json.Unmarshal([]byte(test), c); err == nil {
t.Fatalf("json.Unmarshal(%q, Code) did not error", test)
}
}
}
func TestCodeMarshalJSONNil(t *testing.T) {
c := (*Code)(nil)
b, err := c.MarshalJSON()
if err != nil {
t.Fatalf("Code(nil).MarshalJSON() errored: %v", err)
}
if !bytes.Equal(b, []byte("null")) {
t.Errorf("Code(nil).MarshalJSON() returned %s, want \"null\"", string(b))
}
}
func TestCodeMarshalJSON(t *testing.T) {
tests := []struct {
code Code
want string
}{
{Unset, `"Unset"`},
{Error, `"Error"`},
{Ok, `"Ok"`},
}
for _, test := range tests {
b, err := test.code.MarshalJSON()
if err != nil {
t.Fatalf("Code(%s).MarshalJSON() errored: %v", test.code, err)
}
if !bytes.Equal(b, []byte(test.want)) {
t.Errorf("Code(%s).MarshalJSON() returned %s, want %s", test.code, string(b), test.want)
}
}
}
func TestCodeMarshalJSONErrorInvalid(t *testing.T) {
c := new(Code)
*c = Code(maxCode)
if b, err := c.MarshalJSON(); err == nil {
t.Fatalf("Code(maxCode).MarshalJSON() did not error")
} else if b != nil {
t.Fatal("Code(maxCode).MarshalJSON() returned non-nil value")
}
}
func TestRoundTripCodes(t *testing.T) {
tests := []struct {
input Code
}{
{Unset},
{Error},
{Ok},
}
for _, test := range tests {
c := test.input
out := new(Code)
b, err := c.MarshalJSON()
if err != nil {
t.Fatalf("Code(%s).MarshalJSON() errored: %v", test.input, err)
}
if err := out.UnmarshalJSON(b); err != nil {
t.Fatalf("Code.UnmarshalJSON(%q) errored: %v", c, err)
}
if *out != test.input {
t.Errorf("failed to round trip %q, output was %v", test.input, out)
}
}
}
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