Function TestEnv_keyword_with_custom_functions

expr_test.go:2295–2319

(t *testing.T)

}

func TestEnv_keyword_with_custom_functions(t *testing.T) {
	fn := expr.Function("fn", func(params ...any) (any, error) {
		return "ok", nil
	})

	var tests = []struct {
		code  string
		error bool
	}{
		{`fn()`, false},
		{`$env.fn()`, true},
		{`$env["fn"]`, true},
	}

	for _, tt := range tests {
		t.Run(tt.code, func(t *testing.T) {
			_, err := expr.Compile(tt.code, expr.Env(mock.Env{}), fn)
			if tt.error {
				require.Error(t, err)
			} else {
				require.NoError(t, err)
			}
		})
	}
}

func TestIssue401(t *testing.T) {
	program, err := expr.Compile("(a - b + c) / d", expr.AllowUndefinedVariables())