feat(tests): Fixing linter problems

Using golangci-lint

parser/main_test.go

@@ -0,0 +1,60 @@
+package parser
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+const composeFile = `
+services:
+  app:
+    image: nginx:latest
+`
+
+func setupTest() (string, error) {
+	// write the composeFile to a temporary file
+	tmpDir, err := os.MkdirTemp("", "katenary-test-parse")
+	if err != nil {
+		return "", err
+	}
+	writeFile := filepath.Join(tmpDir, "compose.yaml")
+	writeErr := os.WriteFile(writeFile, []byte(composeFile), 0644)
+	return writeFile, writeErr
+}
+
+func tearDownTest(tmpDir string) {
+	if tmpDir != "" {
+		if err := os.RemoveAll(tmpDir); err != nil {
+			log.Fatalf("Failed to remove temporary directory %s: %s", tmpDir, err.Error())
+		}
+	}
+}
+
+func TestParse(t *testing.T) {
+	file, err := setupTest()
+	dirname := filepath.Dir(file)
+	currentDir, _ := os.Getwd()
+	if err := os.Chdir(dirname); err != nil {
+		t.Fatalf("Failed to change directory to %s: %s", dirname, err.Error())
+	}
+	defer func() {
+		tearDownTest(dirname)
+		if err := os.Chdir(currentDir); err != nil {
+			t.Fatalf("Failed to change back to original directory %s: %s", currentDir, err.Error())
+		}
+	}()
+
+	if err != nil {
+		t.Fatalf("Failed to setup test: %s", err.Error())
+	}
+
+	Project, err := Parse(nil, nil)
+	if err != nil {
+		t.Fatalf("Failed to parse compose file: %s", err.Error())
+	}
+	if Project == nil {
+		t.Fatal("Expected project to be not nil")
+	}
+}