Add HasNoEther

test/helpers/ForceEther.sol

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+pragma solidity ^0.4.8;
+
+// @title Force Ether into a contract.
+// @notice  even
+// if the contract is not payable.
+// @notice To use, construct the contract with the target as argument.
+// @author Remco Bloemen <remco@neufund.org>
+contract ForceEther  {
+  function ForceEther(address target) payable {
+    // Selfdestruct transfers all Ether to the arget address
+    selfdestruct(target);
+  }
+}

test/helpers/HasNoEtherTest.sol

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+pragma solidity ^0.4.8;
+
+import "../../contracts/ownership/HasNoEther.sol";
+
+contract HasNoEtherTest is HasNoEther {
+
+  // Constructor with explicit payable — should still fail
+  function HasNoEtherTest() payable {
+
+  }
+
+  // Default function with explicit payable — should still fail
+  function() external payable {
+    throw;
+  }
+
+}

test/helpers/expectThrow.js

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+export default async promise => {
+  try {
+    await promise;
+  } catch (error) {
+    // TODO: Check jump destination to destinguish between a throw
+    //       and an actual invalid jump.
+    const invalidJump = error.message.search('invalid JUMP') >= 0;
+    assert(invalidJump, "Expected throw, got '" + error + "' instead");
+    return;
+  }
+  assert.fail('Expected throw not received');
+};

test/helpers/toPromise.js

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+export default func =>
+  (...args) =>
+    new Promise((accept, reject) =>
+      func(...args, (error, data) => error ? reject(error) : accept(data)));