add unit test

Signed-off-by: Lixia (Sylvia) Lei <[email protected]>

internal/trace/text_formatter_test.go

@@ -0,0 +1,99 @@
+/*
+Copyright The ORAS 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 trace
+
+import (
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/sirupsen/logrus"
+)
+
+func TestTextFormatter_Format(t *testing.T) {
+	tests := []struct {
+		name    string
+		f       *TextFormatter
+		entry   *logrus.Entry
+		want    []byte
+		wantErr bool
+	}{
+		{
+			name: "debug log entry",
+			f:    &TextFormatter{},
+			entry: &logrus.Entry{
+				Time:    time.Date(2024, time.December, 1, 23, 30, 1, 55, time.UTC),
+				Level:   logrus.DebugLevel,
+				Message: "test debug",
+				Data:    logrus.Fields{},
+			},
+			want:    []byte("[2024-12-01T23:30:01.000000055Z][DEBUG]: test debug\n\n\n"),
+			wantErr: false,
+		},
+		{
+			name: "info log entry",
+			f:    &TextFormatter{},
+			entry: &logrus.Entry{
+				Time:    time.Date(2024, time.December, 1, 23, 30, 1, 55, time.UTC),
+				Level:   logrus.InfoLevel,
+				Message: "test info",
+				Data:    logrus.Fields{},
+			},
+			want:    []byte("[2024-12-01T23:30:01.000000055Z][INFO]: test info\n\n\n"),
+			wantErr: false,
+		},
+		{
+			name: "warning log entry with data fields",
+			f:    &TextFormatter{},
+			entry: &logrus.Entry{
+				Time:    time.Date(2024, time.December, 1, 23, 30, 1, 55, time.UTC),
+				Level:   logrus.WarnLevel,
+				Message: "test warning with fields",
+				Data: logrus.Fields{
+					"testkey": "testval",
+				},
+			},
+			want:    []byte("[2024-12-01T23:30:01.000000055Z][WARNING]: test warning with fields\n[Data]:\n  testkey=testval\n\n\n"),
+			wantErr: false,
+		},
+		{
+			name: "error log entry with data fields",
+			f:    &TextFormatter{},
+			entry: &logrus.Entry{
+				Time:    time.Date(2024, time.December, 1, 23, 30, 1, 55, time.UTC),
+				Level:   logrus.ErrorLevel,
+				Message: "test warning with fields",
+				Data: logrus.Fields{
+					"testkey": 123,
+				},
+			},
+			want:    []byte("[2024-12-01T23:30:01.000000055Z][ERROR]: test warning with fields\n[Data]:\n  testkey=123\n\n\n"),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := tt.f.Format(tt.entry)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("TextFormatter.Format() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("TextFormatter.Format() = %s, want %s", got, tt.want)
+			}
+		})
+	}
+}