Function TestNavigableASTNilSafety

common/ast/navigable_test.go:304–344

(t *testing.T)

}

func TestNavigableASTNilSafety(t *testing.T) {
	tests := []struct {
		name string
		e    ast.NavigableExpr
	}{
		{
			name: "nil expr",
			e:    ast.NavigateAST(ast.NewAST(nil, nil)),
		},
	}
	for _, tst := range tests {
		tc := tst
		t.Run(tc.name, func(t *testing.T) {
			e := tc.e
			if e.ID() != 0 {
				t.Errorf("ID() got %d, wanted 0", e.ID())
			}
			if e.Kind() != ast.UnspecifiedExprKind {
				t.Errorf("Kind() got %v, wanted unspecified kind", e.Kind())
			}
			if e.Type() != types.DynType {
				t.Errorf("Type() got %v, wanted types.DynType", e.Type())
			}
			if p, found := e.Parent(); found {
				t.Errorf("Parent() got %v, wanted not found", p)
			}
			if len(e.Children()) != 0 {
				t.Errorf("Children() got %v, wanted none", e.Children())
			}
			if e.AsLiteral() != nil {
				t.Errorf("AsLiteral() got %v, wanted nil", e.AsLiteral())
			}
			if e.AsCall() == nil {
				t.Errorf("AsCall() got nil, wanted non-nil for safe traversal")
			}
			if e.AsComprehension() == nil {
				t.Errorf("AsComprehension() got nil, wanted non-nil for safe traversal")
			}
		})
	}
}

func TestNavigableExpr(t *testing.T) {
	checkedAST := mustTypeCheck(t, `'a' == 'b'`)