Alerting: Add search.folder filter to the Prometheus rules API (#114358)

2025-11-25 12:19:31 +01:00
parent f7a19be381
commit 1d4067216d
4 changed files with 286 additions and 0 deletions
@@ -0,0 +1,132 @@
+package api
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewTextMatcher(t *testing.T) {
+	tests := []struct {
+		name          string
+		input         string
+		expectedWords []string
+	}{
+		{
+			name:          "empty string",
+			input:         "",
+			expectedWords: []string{},
+		},
+		{
+			name:          "whitespace only",
+			input:         "   ",
+			expectedWords: []string{},
+		},
+		{
+			name:          "single word",
+			input:         "alerts",
+			expectedWords: []string{"alerts"},
+		},
+		{
+			name:          "multiple words",
+			input:         "parent alerts",
+			expectedWords: []string{"parent", "alerts"},
+		},
+		{
+			name:          "mixed case normalized to lowercase",
+			input:         "Parent Alerts",
+			expectedWords: []string{"parent", "alerts"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			matcher := NewTextMatcher(tt.input)
+			assert.Equal(t, tt.expectedWords, matcher.words)
+		})
+	}
+}
+
+func TestTextMatcher_Match(t *testing.T) {
+	tests := []struct {
+		name     string
+		search   string
+		text     string
+		expected bool
+	}{
+		{
+			name:     "empty search matches everything",
+			search:   "",
+			text:     "any text",
+			expected: true,
+		},
+		{
+			name:     "whitespace search matches everything",
+			search:   "   ",
+			text:     "any text",
+			expected: true,
+		},
+		{
+			name:     "exact match",
+			search:   "alerts",
+			text:     "alerts",
+			expected: true,
+		},
+		{
+			name:     "case insensitive match",
+			search:   "parent alerts",
+			text:     "Parent Folder/Alerts",
+			expected: true,
+		},
+		{
+			name:     "partial match",
+			search:   "folder",
+			text:     "Parent Folder/Alerts",
+			expected: true,
+		},
+		{
+			name:     "sequential words match",
+			search:   "api time",
+			text:     "API Response Time",
+			expected: true,
+		},
+		{
+			name:     "non-consecutive but sequential words match",
+			search:   "parent rules",
+			text:     "Parent Folder/Alert Rules",
+			expected: true,
+		},
+		{
+			name:     "word not found",
+			search:   "missing",
+			text:     "Parent Folder/Alerts",
+			expected: false,
+		},
+		{
+			name:     "words out of order",
+			search:   "alerts parent",
+			text:     "Parent Folder/Alerts",
+			expected: false,
+		},
+		{
+			name:     "folder path search",
+			search:   "prod alerts",
+			text:     "Monitoring/Production/Alerts",
+			expected: true,
+		},
+		{
+			name:     "multiple spaces in search",
+			search:   "api   response   time",
+			text:     "API Response Time",
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			matcher := NewTextMatcher(tt.search)
+			result := matcher.Match(tt.text)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}