Improve scan performances and add unit testing

Author: codeyourweb

.gitignore

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+.DS_Store
+.idea/
+*.iml
+.vscode/
+.history/

common_utils_test.go

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+package main
+
+import (
+	"os"
+	"testing"
+)
+
+// TestFileHashFunctions tests hash calculation functions
+func TestFileSHA256Sum(t *testing.T) {
+	// Test with a known file
+	hash := FileSHA256Sum("go.mod")
+
+	if hash == "" {
+		t.Fatal("FileSHA256Sum returned empty string")
+	}
+
+	// SHA256 hash should be 64 characters (hex)
+	if len(hash) != 64 {
+		t.Fatalf("SHA256 hash should be 64 characters, got %d", len(hash))
+	}
+}
+
+// TestContainsHelper tests the Contains utility function
+func TestContainsHelper(t *testing.T) {
+	list := []string{"apple", "banana", "cherry"}
+
+	if !Contains(list, "banana") {
+		t.Fatal("Contains failed to find existing element")
+	}
+
+	if Contains(list, "date") {
+		t.Fatal("Contains incorrectly reported finding non-existent element")
+	}
+
+	if Contains([]string{}, "apple") {
+		t.Fatal("Contains should return false for empty list")
+	}
+}
+
+// TestFileCopy creates a temporary test scenario for file operations
+func TestFileCopyOperation(t *testing.T) {
+	// This test verifies that FileCopy function can be called without panic
+	// Actual file operations are tested with temporary directories
+	tempSrc := t.TempDir() + "/source.txt"
+	tempDst := t.TempDir() + "/dest"
+
+	// Create source file
+	err := writeTestFile(tempSrc, "test content")
+	if err != nil {
+		t.Fatalf("Failed to create test file: %v", err)
+	}
+
+	// FileCopy should not panic
+	FileCopy(tempSrc, tempDst, false)
+}
+
+// TestGetHostname verifies hostname retrieval
+func TestGetHostname(t *testing.T) {
+	hostname := GetHostname()
+
+	if hostname == "" {
+		t.Fatal("GetHostname returned empty string")
+	}
+}
+
+// TestGetUsername verifies username retrieval
+func TestGetUsername(t *testing.T) {
+	username := GetUsername()
+
+	if username == "" {
+		t.Fatal("GetUsername returned empty string")
+	}
+}
+
+// TestGetCurrentDirectory verifies current directory retrieval
+func TestGetCurrentDirectory(t *testing.T) {
+	dir := GetCurrentDirectory()
+
+	if dir == "" {
+		t.Fatal("GetCurrentDirectory returned empty string")
+	}
+}
+
+// TestRenderFastfinderLogo verifies logo rendering
+func TestRenderFastfinderLogo(t *testing.T) {
+	logo := RenderFastfinderLogo()
+
+	if logo == "" {
+		t.Fatal("RenderFastfinderLogo returned empty string")
+	}
+
+	// Logo should contain the program name
+	if len(logo) < 10 {
+		t.Fatal("Logo seems too short")
+	}
+}
+
+// TestRenderFastfinderVersion verifies version info rendering
+func TestRenderFastfinderVersion(t *testing.T) {
+	version := RenderFastfinderVersion()
+
+	if version == "" {
+		t.Fatal("RenderFastfinderVersion returned empty string")
+	}
+
+	// Version should mention the version number
+	if len(version) < 5 {
+		t.Fatal("Version string seems too short")
+	}
+}
+
+// Helper function to write test files
+func writeTestFile(path string, content string) error {
+	return os.WriteFile(path, []byte(content), 0644)
+}

config_integration_test.go

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+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+// TestConfigurationStandard tests loading a standard (non-encrypted) configuration
+func TestConfigurationStandard(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	// Verify basic structure is accessible (paths may be empty in test file)
+	t.Log("Configuration loaded successfully")
+}
+
+// TestConfigurationCiphered tests loading an encrypted (RC4) configuration
+func TestConfigurationCiphered(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_ciphered.yml")
+
+	// Verify basic structure is accessible (paths may be empty in test file)
+	t.Log("Ciphered configuration loaded successfully")
+}
+
+// TestConfigurationPaths verifies path configuration structure
+func TestConfigurationPaths(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	if len(config.Input.Path) > 0 {
+		// Verify first path is not empty
+		if config.Input.Path[0] == "" {
+			t.Fatal("Path should not be empty")
+		}
+	}
+}
+
+// TestConfigurationContent verifies content patterns (grep, yara, checksum)
+func TestConfigurationContent(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	if config.Input.Content.Grep != nil {
+		// Grep patterns should be readable
+		for _, pattern := range config.Input.Content.Grep {
+			if pattern == "" {
+				t.Fatal("Grep pattern should not be empty")
+			}
+		}
+	}
+}
+
+// TestConfigurationOptions verifies options configuration
+func TestConfigurationOptions(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	// Options structure should exist (may be all false)
+	t.Log("Options section loaded successfully")
+}
+
+// TestConfigurationOutput verifies output configuration
+func TestConfigurationOutput(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	// Output structure should exist
+	t.Log("Output section loaded successfully")
+}
+
+// TestConfigurationEventForwarding verifies event forwarding configuration
+func TestConfigurationEventForwarding(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	// Event forwarding section should be accessible
+	t.Log("Event forwarding section loaded successfully")
+}
+
+// TestConfigurationAdvancedParameters verifies advanced parameters
+func TestConfigurationAdvancedParameters(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	// Advanced parameters should exist
+	t.Log("Advanced parameters section loaded successfully")
+}
+
+// TestConfigurationMissingRequired tests handling of incomplete config
+func TestConfigurationMissingRequired(t *testing.T) {
+	// Create a minimal temporary config file
+	tmpFile := filepath.Join(t.TempDir(), "test_config.yml")
+	tmpContent := `input:
+  path:
+    - /tmp
+`
+	os.WriteFile(tmpFile, []byte(tmpContent), 0644)
+
+	var config Configuration
+	config.getConfiguration(tmpFile)
+
+	if len(config.Input.Path) == 0 {
+		t.Fatal("Minimal config should have at least path section")
+	}
+}
+
+// TestConfigurationEmpty tests handling of empty configuration
+func TestConfigurationEmpty(t *testing.T) {
+	tmpFile := filepath.Join(t.TempDir(), "empty_config.yml")
+	os.WriteFile(tmpFile, []byte(""), 0644)
+
+	var config Configuration
+	config.getConfiguration(tmpFile)
+
+	// Verify no panic occurred
+	t.Log("Empty configuration handled gracefully")
+}
+
+// TestConfigurationYARAWithRC4 tests YARA section with RC4 encryption
+func TestConfigurationYARAWithRC4(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_ciphered.yml")
+
+	// Ciphered config should load without panicking
+	if config.Input.Content.Yara != nil {
+		t.Log("YARA rules loaded from ciphered configuration")
+	}
+}
+
+// TestConfigurationChecksums tests checksum patterns
+func TestConfigurationChecksums(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	if len(config.Input.Content.Checksum) > 0 {
+		// Verify checksums are readable
+		for _, cs := range config.Input.Content.Checksum {
+			if cs == "" {
+				t.Fatal("Checksum should not be empty")
+			}
+		}
+	}
+}
+
+// TestConfigurationMultiplePaths tests multiple path handling
+func TestConfigurationMultiplePaths(t *testing.T) {
+	var config Configuration
+	config.getConfiguration("tests/config_test_standard.yml")
+
+	if len(config.Input.Path) > 1 {
+		t.Logf("Configuration loaded with %d paths", len(config.Input.Path))
+	}
+}