Improved indexing, hover documentation and implemente renaming

test/lsp_hover_gam_usage_test.go

@@ -0,0 +1,75 @@
+package integration
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/marte-community/marte-dev-tools/internal/index"
+	"github.com/marte-community/marte-dev-tools/internal/lsp"
+	"github.com/marte-community/marte-dev-tools/internal/parser"
+)
+
+func TestHoverGAMUsage(t *testing.T) {
+	// Setup
+	lsp.Tree = index.NewProjectTree()
+	lsp.Documents = make(map[string]string)
+
+	content := `
++DS1 = {
+    Class = FileReader
+    +Signals = {
+        Sig1 = { Type = uint32 }
+    }
+}
++GAM1 = {
+    Class = IOGAM
+    +InputSignals = {
+        S1 = {
+            DataSource = DS1
+            Alias = Sig1
+        }
+    }
+}
++GAM2 = {
+    Class = IOGAM
+    +OutputSignals = {
+        S2 = {
+             DataSource = DS1
+             Alias = Sig1
+        }
+    }
+}
+`
+	uri := "file://test_gam_usage.marte"
+	lsp.Documents[uri] = content
+	p := parser.NewParser(content)
+	cfg, err := p.Parse()
+	if err != nil {
+		t.Fatal(err)
+	}
+	lsp.Tree.AddFile("test_gam_usage.marte", cfg)
+	lsp.Tree.ResolveReferences()
+
+	// Query hover for Sig1 (Line 5)
+	// Line 4: Sig1... (0-based)
+	params := lsp.HoverParams{
+		TextDocument: lsp.TextDocumentIdentifier{URI: uri},
+		Position:     lsp.Position{Line: 4, Character: 9},
+	}
+
+	hover := lsp.HandleHover(params)
+	if hover == nil {
+		t.Fatal("Expected hover")
+	}
+
+	contentHover := hover.Contents.(lsp.MarkupContent).Value
+	if !strings.Contains(contentHover, "**Used in GAMs**") {
+		t.Errorf("Expected 'Used in GAMs' section, got:\n%s", contentHover)
+	}
+	if !strings.Contains(contentHover, "- +GAM1") {
+		t.Error("Expected +GAM1 in usage list")
+	}
+	if !strings.Contains(contentHover, "- +GAM2") {
+		t.Error("Expected +GAM2 in usage list")
+	}
+}