Added project schema feature

test/validator_project_schema_test.go

@@ -0,0 +1,71 @@
+package integration
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/marte-dev/marte-dev-tools/internal/index"
+	"github.com/marte-dev/marte-dev-tools/internal/parser"
+	"github.com/marte-dev/marte-dev-tools/internal/validator"
+)
+
+func TestProjectSpecificSchema(t *testing.T) {
+	// Create temp dir
+	tmpDir, err := os.MkdirTemp("", "mdt_test")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// Define project schema
+	schemaContent := `
+{
+  "classes": {
+    "ProjectClass": {
+      "fields": [
+        {"name": "CustomField", "type": "int", "mandatory": true}
+      ]
+    }
+  }
+}
+`
+	err = os.WriteFile(filepath.Join(tmpDir, ".marte_schema.json"), []byte(schemaContent), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Define MARTe file using ProjectClass
+	marteContent := `
++Obj = {
+    Class = ProjectClass
+    // Missing CustomField
+}
+`
+	// We parse the content in memory, but we need the validator to look in tmpDir
+	p := parser.NewParser(marteContent)
+	config, err := p.Parse()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	idx := index.NewProjectTree()
+	idx.AddFile("project.marte", config)
+
+	// Pass tmpDir as projectRoot
+	v := validator.NewValidator(idx, tmpDir)
+	v.ValidateProject()
+
+	found := false
+	for _, d := range v.Diagnostics {
+		if strings.Contains(d.Message, "Missing mandatory field 'CustomField'") {
+			found = true
+			break
+		}
+	}
+
+	if !found {
+		t.Error("Expected error for missing 'CustomField' defined in project schema")
+	}
+}