feat(tests): more tests and ci action (#14)

* feat(tests): more tests and ci action
* fix(ci): coverage and pr-lint
* fix(ci): renovate rules, permissions, linting, actions
* fix(lint): editorconfig fixes
* fix(lint): kics.config
* fix(lint): formatting, permissions, pre-commit config
* chore(ci): set workflow to use go 1.23, go mod tidy
* chore(ci): fixes and stuff
* chore(ci): disable GO_GOLANGCI_LINT
* chore(ci): pinning, permissions

config/config_test.go

@@ -0,0 +1,82 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/spf13/viper"
+)
+
+// TestDefaultConfig verifies that if no config file is found,
+// the default configuration values are correctly set.
+func TestDefaultConfig(t *testing.T) {
+	// Create a temporary directory to ensure no config file is present.
+	tmpDir, err := os.MkdirTemp("", "gibidify_config_test_default")
+	if err != nil {
+		t.Fatalf("Failed to create temp directory: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// Point Viper to the temp directory with no config file.
+	originalConfigPaths := viper.ConfigFileUsed()
+	viper.Reset()
+	viper.AddConfigPath(tmpDir)
+	LoadConfig()
+
+	// Check defaults
+	defaultSizeLimit := GetFileSizeLimit()
+	if defaultSizeLimit != 5242880 {
+		t.Errorf("Expected default file size limit of 5242880, got %d", defaultSizeLimit)
+	}
+
+	ignoredDirs := GetIgnoredDirectories()
+	if len(ignoredDirs) == 0 {
+		t.Errorf("Expected some default ignored directories, got none")
+	}
+
+	// Restore Viper state
+	viper.SetConfigFile(originalConfigPaths)
+}
+
+// TestLoadConfigFile verifies that when a valid config file is present,
+// viper loads the specified values correctly.
+func TestLoadConfigFile(t *testing.T) {
+	tmpDir, err := os.MkdirTemp("", "gibidify_config_test_file")
+	if err != nil {
+		t.Fatalf("Failed to create temp directory: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// Prepare a minimal config file
+	configContent := []byte(`---
+fileSizeLimit: 123456
+ignoreDirectories:
+- "testdir1"
+- "testdir2"
+`)
+
+	configPath := filepath.Join(tmpDir, "config.yaml")
+	if err := os.WriteFile(configPath, configContent, 0644); err != nil {
+		t.Fatalf("Failed to write config file: %v", err)
+	}
+
+	// Reset viper and point to the new config path
+	viper.Reset()
+	viper.AddConfigPath(tmpDir)
+
+	// Force Viper to read our config file
+	if err := viper.ReadInConfig(); err != nil {
+		t.Fatalf("Could not read config file: %v", err)
+	}
+
+	// Validate loaded data
+	if got := viper.GetInt64("fileSizeLimit"); got != 123456 {
+		t.Errorf("Expected fileSizeLimit=123456, got %d", got)
+	}
+
+	ignored := viper.GetStringSlice("ignoreDirectories")
+	if len(ignored) != 2 || ignored[0] != "testdir1" || ignored[1] != "testdir2" {
+		t.Errorf("Expected [\"testdir1\", \"testdir2\"], got %v", ignored)
+	}
+}