Test: Create unit test to SplitEmails (#27985)

pkg/util/split_email_test.go

+package util
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSplitEmails(t *testing.T) {
+	testcases := []struct {
+		input    string
+		expected []string
+	}{
+		{
+			input:    "",
+			expected: []string{},
+		},
+		{
+			input:    "ops@grafana.org",
+			expected: []string{"ops@grafana.org"},
+		},
+		{
+			input:    "ops@grafana.org;dev@grafana.org",
+			expected: []string{"ops@grafana.org", "dev@grafana.org"},
+		},
+		{
+			input:    "ops@grafana.org;dev@grafana.org,",
+			expected: []string{"ops@grafana.org", "dev@grafana.org"},
+		},
+		{
+			input:    "dev@grafana.org,ops@grafana.org",
+			expected: []string{"dev@grafana.org", "ops@grafana.org"},
+		},
+		{
+			input:    "dev@grafana.org,ops@grafana.org,",
+			expected: []string{"dev@grafana.org", "ops@grafana.org"},
+		},
+		{
+			input:    "dev@grafana.org\nops@grafana.org",
+			expected: []string{"dev@grafana.org", "ops@grafana.org"},
+		},
+		{
+			input:    "dev@grafana.org\nops@grafana.org\n",
+			expected: []string{"dev@grafana.org", "ops@grafana.org"},
+		},
+	}
+
+	for _, tt := range testcases {
+		emails := SplitEmails(tt.input)
+		assert.Equal(t, tt.expected, emails)
+	}
+}