isContract will always return true

[tymat]

The extcodesize(address) will return 1 when called against an externally owned account.

I modified isContract() to return the value of length.

truffle(test)> InterfaceAssetVendor.at(InterfaceAssetVendor.address).isContract.call(InterfaceAssetVendor.address)
[ true, { [String: '7333'] s: 1, e: 3, c: [ 7333 ] } ]
truffle(test)> InterfaceAssetVendor.at(InterfaceAssetVendor.address).isContract.call('0x94a69c2543edbb1efef8b6994bc8d0d5b5ffa641')
[ true, { [String: '1'] s: 1, e: 0, c: [ 1 ] } ]

[Dexaran]

isContract will always return true

I don't understand what are you talking about.
isContract must return true if a given address is a contract and false if a given address is a wallet.

I wrote this small example:
contract ReturnTest {
bool public extCodeReturn=true;
function isContractTest(address _addr) {
uint length;
assembly { length := extcodesize(_addr) }
if(length>0) {
extCodeReturn=true;
}
else { extCodeReturn=false; } } }

I deployed it here on Ropsten: 0x8102d6c0CAc954BE65E60Eae602713c0c6e66f5D
When I'm executing isContractTest with 0x8102d6c0CAc954BE65E60Eae602713c0c6e66f5D address, it makes extCodeReturn = true.
When I'm executing isContractTest with 0x00b6fa39793d0537c111df8f6968204f152b4515 (my Ropsten address) it makes extCodeReturn = false. It looks like everything is ok.

[tymat]

For some reason this exact same code is returning false on TestRPC because the value that is returned from the below assembly is 1 when passed with a non contract address.

assembly { length := extcodesize(_addr) }

[izqui]

Based on my testing, TestRPC is fucking up and returning size = 1 in call but in a full sendTransaction the internal value is 0.

I'm so confused by how this could be happening.