test: added tests for LoadConfig

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/posthog/posthog-go v1.2.19
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
+	github.com/stretchr/testify v1.9.0
 	golang.org/x/term v0.23.0
 	gopkg.in/yaml.v3 v3.0.1
 )
@@ -29,6 +30,7 @@ require (
 	github.com/charmbracelet/x/windows v0.1.0 // indirect
 	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
 	github.com/go-chi/chi/v5 v5.1.0
@@ -46,6 +48,7 @@ require (
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
 	github.com/pjbgf/sha1cd v0.3.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sahilm/fuzzy v0.1.1 // indirect
 	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect

pkg/config/config_test.go

@@ -0,0 +1,54 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLoadConfig(t *testing.T) {
+	// Create a temporary directory for test files
+	tmpDir, err := os.MkdirTemp("", "config_test")
+	if err != nil {
+		t.Fatalf("Failed to create temp directory: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// Create an empty file for testing
+	configFilePath := filepath.Join(tmpDir, ".sauced.yaml")
+
+	if err := os.WriteFile(configFilePath, []byte{}, 0644); err != nil {
+		t.Fatalf("Failed to create empty file: %v", err)
+	}
+
+	// Path for a non-existent file
+	nonExistentPath := filepath.Join(tmpDir, "non_existent.yaml")
+
+	tests := []struct {
+		name          string
+		path          string
+		fallbackPath  string
+		expectedError bool
+	}{
+		{"Existing file", configFilePath, "", false},
+		{"Non-existent file", nonExistentPath, "", true},
+		{"Non-existent file with fallback", DefaultConfigPath, configFilePath, false},
+		{"Default path", DefaultConfigPath, "", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			config, err := LoadConfig(tt.path, tt.fallbackPath)
+
+			if tt.expectedError {
+				assert.Error(t, err)
+				assert.Nil(t, config)
+			} else {
+				assert.NoError(t, err)
+				assert.NotNil(t, config)
+			}
+		})
+	}
+}