path: root/internal/jsre/completion_test.go

// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package jsre

import (
    "os"
    "reflect"
    "testing"
)

func TestCompleteKeywords(t *testing.T) {
    re := New("", os.Stdout)
    re.Run(`
        function theClass() {
            this.foo = 3;
            this.gazonk = {xyz: 4};
        }
        theClass.prototype.someMethod = function () {};
        var x = new theClass();
        var y = new theClass();
        y.someMethod = function override() {};
    `)

    var tests = []struct {
        input string
        want  []string
    }{
        {
            input: "x",
            want:  []string{"x."},
        },
        {
            input: "x.someMethod",
            want:  []string{"x.someMethod("},
        },
        {
            input: "x.",
            want: []string{
                "x.constructor",
                "x.foo",
                "x.gazonk",
                "x.someMethod",
            },
        },
        {
            input: "y.",
            want: []string{
                "y.constructor",
                "y.foo",
                "y.gazonk",
                "y.someMethod",
            },
        },
        {
            input: "x.gazonk.",
            want: []string{
                "x.gazonk.constructor",
                "x.gazonk.hasOwnProperty",
                "x.gazonk.isPrototypeOf",
                "x.gazonk.propertyIsEnumerable",
                "x.gazonk.toLocaleString",
                "x.gazonk.toString",
                "x.gazonk.valueOf",
                "x.gazonk.xyz",
            },
        },
    }
    for _, test := range tests {
        cs := re.CompleteKeywords(test.input)
        if !reflect.DeepEqual(cs, test.want) {
            t.Errorf("wrong completions for %q\ngot  %v\nwant %v", test.input, cs, test.want)
        }
    }
}