Function testTwoOperandOp

core/vm/instructions_test.go:33–69

(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error))

}

func testTwoOperandOp(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error)) {
	var (
		env   = NewEVM(Context{}, nil, configs.TestChainConfig, Config{})
		stack = newstack()
		pc    = uint64(0)
	)
	env.interpreter.intPool = poolOfIntPools.get()
	for i, test := range tests {
		x := new(big.Int).SetBytes(common.Hex2Bytes(test.x))
		shift := new(big.Int).SetBytes(common.Hex2Bytes(test.y))
		expected := new(big.Int).SetBytes(common.Hex2Bytes(test.expected))
		stack.push(x)
		stack.push(shift)
		opFn(&pc, env, nil, nil, stack)
		actual := stack.pop()
		if actual.Cmp(expected) != 0 {
			t.Errorf("Testcase %d, expected  %v, got %v", i, expected, actual)
		}
		// Check pool usage
		// 1.pool is not allowed to contain anything on the stack
		// 2.pool is not allowed to contain the same pointers twice
		if env.interpreter.intPool.pool.len() > 0 {

			poolvals := make(map[*big.Int]struct{})
			poolvals[actual] = struct{}{}

			for env.interpreter.intPool.pool.len() > 0 {
				key := env.interpreter.intPool.get()
				if _, exist := poolvals[key]; exist {
					t.Errorf("Testcase %d, pool contains double-entry", i)
				}
				poolvals[key] = struct{}{}
			}
		}
	}
	poolOfIntPools.put(env.interpreter.intPool)
}

func TestByteOp(t *testing.T) {
	var (