94 lines
2.8 KiB
Go
94 lines
2.8 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package asm
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import (
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"reflect"
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"testing"
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)
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func lexAll(src string) []token {
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ch := Lex([]byte(src), false)
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var tokens []token
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for i := range ch {
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tokens = append(tokens, i)
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}
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return tokens
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}
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func TestLexer(t *testing.T) {
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tests := []struct {
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input string
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tokens []token
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}{
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{
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input: ";; this is a comment",
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tokens: []token{{typ: lineStart}, {typ: eof}},
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},
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{
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input: "0x12345678",
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tokens: []token{{typ: lineStart}, {typ: number, text: "0x12345678"}, {typ: eof}},
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},
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{
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input: "0x123ggg",
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tokens: []token{{typ: lineStart}, {typ: number, text: "0x123"}, {typ: element, text: "ggg"}, {typ: eof}},
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},
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{
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input: "12345678",
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tokens: []token{{typ: lineStart}, {typ: number, text: "12345678"}, {typ: eof}},
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},
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{
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input: "123abc",
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tokens: []token{{typ: lineStart}, {typ: number, text: "123"}, {typ: element, text: "abc"}, {typ: eof}},
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},
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{
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input: "0123abc",
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tokens: []token{{typ: lineStart}, {typ: number, text: "0123"}, {typ: element, text: "abc"}, {typ: eof}},
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},
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{
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input: "00123abc",
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tokens: []token{{typ: lineStart}, {typ: number, text: "00123"}, {typ: element, text: "abc"}, {typ: eof}},
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},
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{
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input: "@foo",
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tokens: []token{{typ: lineStart}, {typ: label, text: "foo"}, {typ: eof}},
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},
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{
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input: "@label123",
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tokens: []token{{typ: lineStart}, {typ: label, text: "label123"}, {typ: eof}},
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},
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// Comment after label
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{
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input: "@label123 ;; comment",
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tokens: []token{{typ: lineStart}, {typ: label, text: "label123"}, {typ: eof}},
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},
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// Comment after instruction
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{
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input: "push 3 ;; comment\nadd",
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tokens: []token{{typ: lineStart}, {typ: element, text: "push"}, {typ: number, text: "3"}, {typ: lineEnd, text: "\n"}, {typ: lineStart, lineno: 1}, {typ: element, lineno: 1, text: "add"}, {typ: eof, lineno: 1}},
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},
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}
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for _, test := range tests {
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tokens := lexAll(test.input)
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if !reflect.DeepEqual(tokens, test.tokens) {
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t.Errorf("input %q\ngot: %+v\nwant: %+v", test.input, tokens, test.tokens)
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}
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}
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}
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