Case insensitive string comparison

pkg/utils/search_test.go

@@ -0,0 +1,80 @@
+package utils
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestFuzzySearch is a function.
+func TestFuzzySearch(t *testing.T) {
+	type scenario struct {
+		needle   string
+		haystack []string
+		expected []string
+	}
+
+	scenarios := []scenario{
+		{
+			needle:   "",
+			haystack: []string{"test"},
+			expected: []string{},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"test"},
+			expected: []string{"test"},
+		},
+		{
+			needle:   "o",
+			haystack: []string{"a", "o", "e"},
+			expected: []string{"o"},
+		},
+		{
+			needle:   "mybranch",
+			haystack: []string{"my_branch", "mybranch", "branch", "this is my branch"},
+			expected: []string{"mybranch", "my_branch", "this is my branch"},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"not a good match", "this 'test' is a good match", "test"},
+			expected: []string{"test", "this 'test' is a good match"},
+		},
+		{
+			needle:   "test",
+			haystack: []string{"Test"},
+			expected: []string{"Test"},
+		},
+	}
+
+	for _, s := range scenarios {
+		assert.EqualValues(t, s.expected, FuzzySearch(s.needle, s.haystack))
+	}
+}
+
+func TestCaseInsensitiveContains(t *testing.T) {
+	testCases := []struct {
+		haystack string
+		needle   string
+		expected bool
+	}{
+		{"Hello, World!", "world", true},           // Case-insensitive match
+		{"Hello, World!", "WORLD", true},           // Case-insensitive match
+		{"Hello, World!", "orl", true},             // Case-insensitive match
+		{"Hello, World!", "o, W", true},            // Case-insensitive match
+		{"Hello, World!", "hello", true},           // Case-insensitive match
+		{"Hello, World!", "Foo", false},            // No match
+		{"Hello, World!", "Hello, World!!", false}, // No match
+		{"Hello, World!", "", true},                // Empty needle matches
+		{"", "Hello", false},                       // Empty haystack doesn't match
+		{"", "", true},                             // Empty strings match
+		{"", " ", false},                           // Empty haystack, non-empty needle
+		{" ", "", true},                            // Non-empty haystack, empty needle
+	}
+
+	for i, testCase := range testCases {
+		result := CaseInsensitiveContains(testCase.haystack, testCase.needle)
+		assert.Equal(t, testCase.expected, result, fmt.Sprintf("Test case %d failed. Expected '%v', got '%v' for '%s' in '%s'", i, testCase.expected, result, testCase.needle, testCase.haystack))
+	}
+}