Organize test files following contracts folders structure

test/ownership/Claimable.test.js

@@ -0,0 +1,53 @@
+
+import assertRevert from '../helpers/assertRevert';
+
+var Claimable = artifacts.require('../contracts/ownership/Claimable.sol');
+
+contract('Claimable', function (accounts) {
+  let claimable;
+
+  beforeEach(async function () {
+    claimable = await Claimable.new();
+  });
+
+  it('should have an owner', async function () {
+    let owner = await claimable.owner();
+    assert.isTrue(owner !== 0);
+  });
+
+  it('changes pendingOwner after transfer', async function () {
+    let newOwner = accounts[1];
+    await claimable.transferOwnership(newOwner);
+    let pendingOwner = await claimable.pendingOwner();
+
+    assert.isTrue(pendingOwner === newOwner);
+  });
+
+  it('should prevent to claimOwnership from no pendingOwner', async function () {
+    await assertRevert(claimable.claimOwnership({ from: accounts[2] }));
+  });
+
+  it('should prevent non-owners from transfering', async function () {
+    const other = accounts[2];
+    const owner = await claimable.owner.call();
+
+    assert.isTrue(owner !== other);
+    await assertRevert(claimable.transferOwnership(other, { from: other }));
+  });
+
+  describe('after initiating a transfer', function () {
+    let newOwner;
+
+    beforeEach(async function () {
+      newOwner = accounts[1];
+      await claimable.transferOwnership(newOwner);
+    });
+
+    it('changes allow pending owner to claim ownership', async function () {
+      await claimable.claimOwnership({ from: newOwner });
+      let owner = await claimable.owner();
+
+      assert.isTrue(owner === newOwner);
+    });
+  });
+});