Add new Metrics API (#26919)

server/public/model/metrics_test.go

@@ -0,0 +1,78 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestPerformanceReport_IsValid(t *testing.T) {
+	outdatedTimestamp := time.Now().Add(-6 * time.Minute).UnixMilli()
+	tests := []struct {
+		name     string
+		report   *PerformanceReport
+		expected error
+	}{
+		{
+			name: "ValidReport",
+			report: &PerformanceReport{
+				Version: "0.1.0",
+				Labels:  map[string]string{"platform": "linux"},
+				Start:   time.Now().UnixMilli() - 10000,
+				End:     time.Now().UnixMilli(),
+			},
+			expected: nil,
+		},
+		{
+			name:     "NilReport",
+			report:   nil,
+			expected: fmt.Errorf("the report is nil"),
+		},
+		{
+			name: "UnsupportedVersion",
+			report: &PerformanceReport{
+				Version: "2.0.0",
+				Labels:  map[string]string{"platform": "linux"},
+				Start:   time.Now().UnixMilli() - 10000,
+				End:     time.Now().UnixMilli(),
+			},
+			expected: fmt.Errorf("report version is not supported: server version: 0.1.0, report version: 2.0.0"),
+		},
+		{
+			name: "ErroneousTimestamps",
+			report: &PerformanceReport{
+				Version: "0.1.0",
+				Labels:  map[string]string{"platform": "linux"},
+				Start:   time.Now().UnixMilli(),
+				End:     time.Now().Add(-1 * time.Hour).UnixMilli(),
+			},
+			expected: fmt.Errorf("report timestamps are erroneous"),
+		},
+		{
+			name: "OutdatedReport",
+			report: &PerformanceReport{
+				Version: "0.1.0",
+				Labels:  map[string]string{"platform": "linux"},
+				Start:   time.Now().Add(-7 * time.Minute).UnixMilli(),
+				End:     outdatedTimestamp,
+			},
+			expected: fmt.Errorf("report is outdated: %d", outdatedTimestamp),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := tt.report.IsValid()
+			if tt.expected != nil {
+				require.EqualError(t, err, tt.expected.Error())
+				return
+			}
+			require.NoError(t, err)
+		})
+	}
+}