67 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
		
		
			
		
	
	
			67 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
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								// 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 rpc
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								import (
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									"encoding/json"
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									"testing"
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									"github.com/ethereum/go-ethereum/common/math"
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								)
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								func TestBlockNumberJSONUnmarshal(t *testing.T) {
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									tests := []struct {
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										input    string
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										mustFail bool
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										expected BlockNumber
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									}{
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										0:  {`"0x"`, true, BlockNumber(0)},
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										1:  {`"0x0"`, false, BlockNumber(0)},
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										2:  {`"0X1"`, false, BlockNumber(1)},
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										3:  {`"0x00"`, true, BlockNumber(0)},
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										4:  {`"0x01"`, true, BlockNumber(0)},
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										5:  {`"0x1"`, false, BlockNumber(1)},
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										6:  {`"0x12"`, false, BlockNumber(18)},
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										7:  {`"0x7fffffffffffffff"`, false, BlockNumber(math.MaxInt64)},
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										8:  {`"0x8000000000000000"`, true, BlockNumber(0)},
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										9:  {"0", true, BlockNumber(0)},
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										10: {`"ff"`, true, BlockNumber(0)},
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										11: {`"pending"`, false, PendingBlockNumber},
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										12: {`"latest"`, false, LatestBlockNumber},
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										13: {`"earliest"`, false, EarliestBlockNumber},
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										14: {`someString`, true, BlockNumber(0)},
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										15: {`""`, true, BlockNumber(0)},
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										16: {``, true, BlockNumber(0)},
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									}
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									for i, test := range tests {
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										var num BlockNumber
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										err := json.Unmarshal([]byte(test.input), &num)
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										if test.mustFail && err == nil {
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											t.Errorf("Test %d should fail", i)
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											continue
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										}
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										if !test.mustFail && err != nil {
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											t.Errorf("Test %d should pass but got err: %v", i, err)
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											continue
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										}
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										if num != test.expected {
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											t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
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										}
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									}
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								}
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