chore: import upstream snapshot with attribution

internal/parser/languages/mathematica_test.go

@@ -0,0 +1,52 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zzet/gortex/internal/graph"
+)
+
+func TestMathematicaExtractor_Basics(t *testing.T) {
+	src := []byte("Needs[\"Utilities`\"]\n" +
+		"<< MyPkg`\n" +
+		"square[x_] := x^2\n" +
+		"cube[x_] = x^3\n" +
+		"SetDelayed[quad, Function[{x}, x^4]]\n")
+	e := NewMathematicaExtractor()
+	require.Equal(t, "mathematica", e.Language())
+
+	res, err := e.Extract("pkg.wl", src)
+	require.NoError(t, err)
+
+	var gotSquare, gotCube, gotQuad bool
+	for _, n := range res.Nodes {
+		switch n.Name {
+		case "square":
+			gotSquare = n.Kind == graph.KindFunction
+		case "cube":
+			gotCube = n.Kind == graph.KindFunction
+		case "quad":
+			gotQuad = n.Kind == graph.KindFunction
+		}
+	}
+	var gotImport bool
+	for _, ed := range res.Edges {
+		if ed.Kind == graph.EdgeImports && ed.To == "unresolved::import::Utilities`" {
+			gotImport = true
+		}
+	}
+	assert.True(t, gotSquare)
+	assert.True(t, gotCube)
+	assert.True(t, gotQuad)
+	assert.True(t, gotImport)
+}
+
+func TestMathematicaExtractor_EmptyInput(t *testing.T) {
+	res, err := NewMathematicaExtractor().Extract("e.wl", []byte(""))
+	require.NoError(t, err)
+	require.Len(t, res.Nodes, 1)
+	assert.Equal(t, graph.KindFile, res.Nodes[0].Kind)
+}