Function TestASTNilSafety

common/ast/ast_test.go:136–174

(t *testing.T)

}

func TestASTNilSafety(t *testing.T) {
	ex, err := ast.ProtoToExpr(nil)
	if err != nil {
		t.Fatalf("ast.ProtoToExpr() failed: %v", err)
	}
	info, err := ast.ProtoToSourceInfo(nil)
	if err != nil {
		t.Fatalf("ast.ProtoToSourceInfo() failed: %v", err)
	}
	tests := []*ast.AST{
		nil,
		ast.NewAST(nil, nil),
		ast.NewCheckedAST(nil, nil, nil),
		ast.NewCheckedAST(ast.NewAST(nil, nil), nil, nil),
		ast.NewAST(ex, info),
		ast.NewCheckedAST(ast.NewAST(ex, info), map[int64]*types.Type{}, map[int64]*ast.ReferenceInfo{}),
	}
	for _, tst := range tests {
		a := tst
		asts := []*ast.AST{a, ast.Copy(a)}
		for _, testAST := range asts {
			if testAST.Expr().ID() != 0 {
				t.Errorf("Expr().ID() got %v, wanted 0", testAST.Expr().ID())
			}
			if testAST.SourceInfo().SyntaxVersion() != "" {
				t.Errorf("SourceInfo().SyntaxVersion() got %s, wanted empty string", testAST.SourceInfo().SyntaxVersion())
			}
			if testAST.IsChecked() {
				t.Error("IsChecked() returned true, wanted false")
			}
			if testAST.GetType(testAST.Expr().ID()) != types.DynType {
				t.Errorf("GetType() got %v, wanted dyn", testAST.GetType(testAST.Expr().ID()))
			}
			if len(testAST.GetOverloadIDs(testAST.Expr().ID())) != 0 {
				t.Errorf("GetOverloadIDs() got %v, wanted empty set", testAST.GetOverloadIDs(testAST.Expr().ID()))
			}
		}
	}
}

func TestSourceInfo(t *testing.T) {
	src := common.NewStringSource("a\n? b\n: c", "custom description")