github.com/aaa256/atlantis@v0.0.0-20210707112435-42ee889287a2/core/asm/lex_test.go (about)

     1  // Copyright 2017 The go-athereum Authors
     2  // This file is part of the go-athereum library.
     3  //
     4  // The go-athereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-athereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-athereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package asm
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  )
    23  
    24  func lexAll(src string) []token {
    25  	ch := Lex("test.asm", []byte(src), false)
    26  
    27  	var tokens []token
    28  	for i := range ch {
    29  		tokens = append(tokens, i)
    30  	}
    31  	return tokens
    32  }
    33  
    34  func TestLexer(t *testing.T) {
    35  	tests := []struct {
    36  		input  string
    37  		tokens []token
    38  	}{
    39  		{
    40  			input:  ";; this is a comment",
    41  			tokens: []token{{typ: lineStart}, {typ: eof}},
    42  		},
    43  		{
    44  			input:  "0x12345678",
    45  			tokens: []token{{typ: lineStart}, {typ: number, text: "0x12345678"}, {typ: eof}},
    46  		},
    47  		{
    48  			input:  "0x123ggg",
    49  			tokens: []token{{typ: lineStart}, {typ: number, text: "0x123"}, {typ: element, text: "ggg"}, {typ: eof}},
    50  		},
    51  		{
    52  			input:  "12345678",
    53  			tokens: []token{{typ: lineStart}, {typ: number, text: "12345678"}, {typ: eof}},
    54  		},
    55  		{
    56  			input:  "123abc",
    57  			tokens: []token{{typ: lineStart}, {typ: number, text: "123"}, {typ: element, text: "abc"}, {typ: eof}},
    58  		},
    59  		{
    60  			input:  "0123abc",
    61  			tokens: []token{{typ: lineStart}, {typ: number, text: "0123"}, {typ: element, text: "abc"}, {typ: eof}},
    62  		},
    63  	}
    64  
    65  	for _, test := range tests {
    66  		tokens := lexAll(test.input)
    67  		if !reflect.DeepEqual(tokens, test.tokens) {
    68  			t.Errorf("input %q\ngot:  %+v\nwant: %+v", test.input, tokens, test.tokens)
    69  		}
    70  	}
    71  }