diff --git a/apps/contribution/artifacts.js b/apps/contribution/artifacts.js
new file mode 100644
index 0000000..f1fc6e7
--- /dev/null
+++ b/apps/contribution/artifacts.js
@@ -0,0 +1,5 @@
+module.exports = {
+    Contribution: artifacts.require('Contribution.sol'),
+    getContributionContract: name => artifacts.require(name)
+}
+  
\ No newline at end of file
diff --git a/apps/contribution/test/contribution.js b/apps/contribution/test/contribution.js
index a2e0607..a2a0d48 100644
--- a/apps/contribution/test/contribution.js
+++ b/apps/contribution/test/contribution.js
@@ -8,7 +8,7 @@ const { assertRevert } = require('@aragon/test-helpers/assertThrow');
 
 const ZERO_ADDR = '0x0000000000000000000000000000000000000000';
 
-contract('Token app', (accounts) => {
+contract('Contribution app', (accounts) => {
     let kernelBase, aclBase, daoFactory, dao, acl, contribution, token;
   
     const root = accounts[0];
diff --git a/apps/contributor/artifacts.js b/apps/contributor/artifacts.js
new file mode 100644
index 0000000..9857f0e
--- /dev/null
+++ b/apps/contributor/artifacts.js
@@ -0,0 +1,5 @@
+module.exports = {
+    Contributor: artifacts.require('Contributor.sol'),
+    getContributorContract: name => artifacts.require(name)
+}
+  
\ No newline at end of file
diff --git a/apps/proposal/contracts/test/Spoof.sol b/apps/proposal/contracts/test/Spoof.sol
new file mode 100644
index 0000000..8a62c73
--- /dev/null
+++ b/apps/proposal/contracts/test/Spoof.sol
@@ -0,0 +1,16 @@
+pragma solidity ^0.4.24;
+
+import "@aragon/os/contracts/acl/ACL.sol";
+import "@aragon/os/contracts/kernel/Kernel.sol";
+import "@aragon/os/contracts/factory/DAOFactory.sol";
+
+// You might think this file is a bit odd, but let me explain.
+// We only use for now those imported contracts in our tests, which
+// means Truffle will not compile them for us, because they are from
+// an external dependency.
+
+
+// solium-disable-next-line no-empty-blocks
+contract Spoof {
+  // ...
+}
\ No newline at end of file
diff --git a/apps/proposal/package-lock.json b/apps/proposal/package-lock.json
index 5835325..85c03fa 100644
--- a/apps/proposal/package-lock.json
+++ b/apps/proposal/package-lock.json
@@ -5,93 +5,88 @@
   "requires": true,
   "dependencies": {
     "@aragon/apm": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/@aragon/apm/-/apm-2.0.2.tgz",
-      "integrity": "sha512-fW9ztXNBcsCNjATbKq4epZVU3qpnlWLITSnZVtVxy0FnUDisJec6+IKob79X5B3uuTsuBjsUAabRGUTZe0lOtw==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@aragon/apm/-/apm-3.1.0.tgz",
+      "integrity": "sha512-U8svdrvQekEjMNYwz4vzpjNftvOKfGE9Zkli///XLrHUEUuHaW7mIEDpvQ687kbZbb0TgxWwK7nU8Q7rk0gs0A==",
       "requires": {
-        "@aragon/os": "^3.1.2",
+        "@aragon/os": "^4.0.0",
         "axios": "^0.18.0",
         "ethjs-ens": "^2.0.1",
-        "ipfs-api": "^17.5.0",
+        "ipfs-api": "^26.1.2",
         "semver": "^5.5.0"
       },
       "dependencies": {
-        "@aragon/os": {
-          "version": "3.1.12",
-          "resolved": "https://registry.npmjs.org/@aragon/os/-/os-3.1.12.tgz",
-          "integrity": "sha512-q5RwUgs8YDrV7tT4WMCdW1qLSmx4w7yZ4oWWQ7owKasffM+WwPu4/e3yOWSQXCpFRVtg+U6NP4SuSciYjPYafw==",
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "requires": {
-            "homedir": "^0.6.0",
-            "truffle-hdwallet-provider": "0.0.3",
-            "truffle-hdwallet-provider-privkey": "0.3.0"
+            "ms": "^2.1.1"
           }
         },
-        "bignumber.js": {
-          "version": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
-          "from": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2"
-        },
         "ipfs-api": {
-          "version": "17.5.0",
-          "resolved": "https://registry.npmjs.org/ipfs-api/-/ipfs-api-17.5.0.tgz",
-          "integrity": "sha512-1LMao28nKBCUrvc6BUCsA3GEQ2TAoKx4Jy3BeUR3o5MVcx+dJDtXfEYDKg6WE/PWzfJF1uZGWgR9Dm2OLITR6w==",
+          "version": "26.1.2",
+          "resolved": "https://registry.npmjs.org/ipfs-api/-/ipfs-api-26.1.2.tgz",
+          "integrity": "sha512-HkM6vQOHL9z9ZCXIrbDXvAOsIzfWPaAac9kY+SjUuVqMydWHzP8qTxfv5jaXResGbmLcbwcROhuqgJU+HrclSg==",
           "requires": {
-            "async": "^2.6.0",
+            "async": "^2.6.1",
+            "big.js": "^5.2.2",
+            "bl": "^2.1.2",
             "bs58": "^4.0.1",
-            "cids": "~0.5.2",
-            "concat-stream": "^1.6.0",
-            "detect-node": "^2.0.3",
+            "cids": "~0.5.5",
+            "concat-stream": "^1.6.2",
+            "debug": "^4.1.0",
+            "detect-node": "^2.0.4",
+            "end-of-stream": "^1.4.1",
             "flatmap": "0.0.3",
-            "glob": "^7.1.2",
-            "ipfs-block": "~0.6.1",
-            "ipfs-unixfs": "~0.1.14",
-            "ipld-dag-pb": "~0.11.4",
-            "is-ipfs": "^0.3.2",
+            "glob": "^7.1.3",
+            "ipfs-block": "~0.8.0",
+            "ipfs-unixfs": "~0.1.16",
+            "ipld-dag-cbor": "~0.13.0",
+            "ipld-dag-pb": "~0.14.11",
+            "is-ipfs": "~0.4.7",
+            "is-pull-stream": "0.0.0",
             "is-stream": "^1.1.0",
-            "lru-cache": "^4.1.1",
-            "multiaddr": "^3.0.2",
-            "multihashes": "~0.4.13",
+            "libp2p-crypto": "~0.14.0",
+            "lodash": "^4.17.11",
+            "lru-cache": "^4.1.3",
+            "multiaddr": "^5.0.0",
+            "multibase": "~0.5.0",
+            "multihashes": "~0.4.14",
             "ndjson": "^1.5.0",
             "once": "^1.4.0",
-            "peer-id": "~0.10.4",
-            "peer-info": "~0.11.4",
+            "peer-id": "~0.12.0",
+            "peer-info": "~0.14.1",
             "promisify-es6": "^1.0.3",
-            "pull-defer": "^0.2.2",
-            "pull-pushable": "^2.1.2",
-            "pump": "^2.0.0",
-            "qs": "^6.5.1",
-            "readable-stream": "^2.3.3",
-            "stream-http": "^2.7.2",
+            "pull-defer": "~0.2.3",
+            "pull-pushable": "^2.2.0",
+            "pull-stream-to-stream": "^1.3.4",
+            "pump": "^3.0.0",
+            "qs": "^6.5.2",
+            "readable-stream": "^3.0.6",
+            "stream-http": "^3.0.0",
             "stream-to-pull-stream": "^1.7.2",
-            "streamifier": "^0.1.1",
-            "tar-stream": "^1.5.5"
+            "streamifier": "~0.1.1",
+            "tar-stream": "^1.6.2",
+            "through2": "^2.0.3"
           }
         },
-        "truffle-hdwallet-provider": {
-          "version": "0.0.3",
-          "resolved": "https://registry.npmjs.org/truffle-hdwallet-provider/-/truffle-hdwallet-provider-0.0.3.tgz",
-          "integrity": "sha1-Dh3gIQS3PTh14c9wkzBbTqii2EM=",
+        "readable-stream": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.3.0.tgz",
+          "integrity": "sha512-EsI+s3k3XsW+fU8fQACLN59ky34AZ14LoeVZpYwmZvldCFo0r0gnelwF2TcMjLor/BTL5aDJVBMkss0dthToPw==",
           "requires": {
-            "bip39": "^2.2.0",
-            "ethereumjs-wallet": "^0.6.0",
-            "web3": "^0.18.2",
-            "web3-provider-engine": "^8.4.0"
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
           }
         },
-        "utf8": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.2.tgz",
-          "integrity": "sha1-H6DZJw6b6FDZsFAn9jUZv0ZFfZY="
-        },
-        "web3": {
-          "version": "0.18.4",
-          "resolved": "https://registry.npmjs.org/web3/-/web3-0.18.4.tgz",
-          "integrity": "sha1-gewXhBRUkfLqqJVbMcBgSeB8Xn0=",
+        "string_decoder": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.2.0.tgz",
+          "integrity": "sha512-6YqyX6ZWEYguAxgZzHGL7SsCeGx3V2TtOTqZz1xSTSWnqsbWwbptafNyvf/ACquZUXV3DANr5BDIwNYe1mN42w==",
           "requires": {
-            "bignumber.js": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
-            "crypto-js": "^3.1.4",
-            "utf8": "^2.1.1",
-            "xhr2": "*",
-            "xmlhttprequest": "*"
+            "safe-buffer": "~5.1.0"
           }
         }
       }
@@ -102,20 +97,31 @@
       "integrity": "sha512-DJAhj68hJLeZ6/KKKch9G3VAZT0SBoNN9JB6AETAy6M/Iiw0ZQZiCVltw8pJgeH2dvVlEC1y1XiG2rnG9RNhJA=="
     },
     "@aragon/aragen": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@aragon/aragen/-/aragen-2.0.3.tgz",
-      "integrity": "sha512-Ou6UGobOMhrOik+3ORI5V6sIX3pZgL+JP96p+zwCaK+wf4AC952gcLMxQ6wQzivmH3U2fHiNohwwof+2Y/F4fg=="
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@aragon/aragen/-/aragen-4.0.2.tgz",
+      "integrity": "sha512-RcaUUNCuWbBliXQpiDyVSW+1JTU/81xakKR/2T2kYQM9bNYH7JRkZyabu5xQVeWIaILD/i/Gs9lj96MKcAPFgg==",
+      "requires": {
+        "@babel/polyfill": "^7.0.0",
+        "chalk": "^2.1.0",
+        "figures": "^2.0.0",
+        "ganache-core": "^2.2.1",
+        "listr": "^0.13.0",
+        "ncp": "^2.0.0",
+        "rimraf": "^2.6.2",
+        "web3": "^1.0.0-beta.34",
+        "yargs": "^12.0.2"
+      }
     },
     "@aragon/cli": {
-      "version": "5.6.1",
-      "resolved": "https://registry.npmjs.org/@aragon/cli/-/cli-5.6.1.tgz",
-      "integrity": "sha512-47juFTjK9A/dR8fP0DnNosQzyC8YtYPx7t25PAFr94vzd4ML+wkc687qPlCvkOc8mlP8tRUzzWJKGGiy0jsL5g==",
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/@aragon/cli/-/cli-5.7.1.tgz",
+      "integrity": "sha512-XYrdq/j0PWd8sDHjp4AOQ4PZLjx2Ip5exxxy0nghbBoMO11ppav0CKLqWNmiBtYTE7cyoIYMwvaNAMRXfEwg2A==",
       "requires": {
-        "@aragon/apm": "^2.0.2",
+        "@aragon/apm": "^3.1.0",
         "@aragon/apps-shared-minime": "^1.0.1",
-        "@aragon/aragen": "^2.0.3",
+        "@aragon/aragen": "^4.0.0",
         "@aragon/os": "^4.0.0",
-        "@aragon/wrapper": "^3.0.0-beta.4",
+        "@aragon/wrapper": "^5.0.0-rc.3",
         "@babel/polyfill": "^7.0.0",
         "ajv": "^6.6.2",
         "bignumber.js": "^7.1.0",
@@ -130,9 +136,7 @@
         "find-up": "^2.1.0",
         "fs-extra": "^4.0.2",
         "ganache-core": "2.2.1",
-        "get-installed-path": "^4.0.8",
         "git-clone": "^0.1.0",
-        "global-modules-path": "^2.3.0",
         "go-ipfs": "0.4.17",
         "ignore": "^3.3.7",
         "ipfs-api": "^21.0.0",
@@ -147,6 +151,7 @@
         "ncp": "^2.0.0",
         "node-fetch": "^2.3.0",
         "opn": "^5.3.0",
+        "replace": "^1.1.0",
         "rimraf": "^2.6.2",
         "semver": "^5.4.1",
         "source-map-support": "^0.5.11",
@@ -160,20 +165,10 @@
         "yargs": "12.0.5"
       }
     },
-    "@aragon/messenger": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@aragon/messenger/-/messenger-1.0.0.tgz",
-      "integrity": "sha512-2YX3gSipHbDTuRLeVuCi3Lj9o3zpGZXELYKkiUgXmnCmed81oEBX6rmCjC7dGFzidIYD/NtEj2kOmoCFh5lKdw==",
-      "requires": {
-        "@babel/runtime": "^7.1.2",
-        "rxjs": "^5.5.6",
-        "uuid": "^3.2.1"
-      }
-    },
     "@aragon/os": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/@aragon/os/-/os-4.1.0.tgz",
-      "integrity": "sha512-PPb8n9aUiBFHZDEFj4Kry7hrgBPYHPD+gwnZlMUvo3ocad4TCljiJYPC5SlOmmySrUkqTIHNksUzWTbuzy9n4g==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/@aragon/os/-/os-4.2.0.tgz",
+      "integrity": "sha512-p0CGev++Ku0oxv+6vvViaPxHYwCVSJxleqJNzf06b9L8VaiWAs0zTwVspebD3mMQqtGJgO7A63Y0LhvsHFw5IA==",
       "requires": {
         "homedir": "^0.6.0",
         "mkdirp": "^0.5.1",
@@ -216,14 +211,40 @@
         }
       }
     },
+    "@aragon/rpc-messenger": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@aragon/rpc-messenger/-/rpc-messenger-1.1.0.tgz",
+      "integrity": "sha512-hgdnSt4F0UqtYIsTtWDAjoiH6vN3nXNRaEUxiW1EYcNBSYUagw/ywkhVyE5uhqQxImwktwk2A6jES9gdL3qQfA==",
+      "requires": {
+        "@babel/runtime": "^7.1.2",
+        "rxjs": "^6.2.1",
+        "uuid": "^3.2.1"
+      },
+      "dependencies": {
+        "rxjs": {
+          "version": "6.5.1",
+          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.1.tgz",
+          "integrity": "sha512-y0j31WJc83wPu31vS1VlAFW5JGrnGC+j+TtGAa1fRQphy48+fDYiDmX8tjGloToEsMkxnouOg/1IzXGKkJnZMg==",
+          "requires": {
+            "tslib": "^1.9.0"
+          }
+        }
+      }
+    },
+    "@aragon/test-helpers": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@aragon/test-helpers/-/test-helpers-1.2.2.tgz",
+      "integrity": "sha512-NJcK2dg8v8rLIMiIYslDsYVoskjDA5V4Z0C+bo+WoMvjzwVjlELGHdLpEbxLVvd6V7zb0pWH/qtQP5dCsgoETw==",
+      "dev": true
+    },
     "@aragon/wrapper": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/@aragon/wrapper/-/wrapper-3.0.0.tgz",
-      "integrity": "sha512-oQ54HAs6yr/sTMGWrAFIFrbqYyH/DAsFoXxDm7zTG3RDlIhJA7gIPb84QBRVM6g3TsAhHJWR4reLJDqnVxqf+Q==",
+      "version": "5.0.0-rc.5",
+      "resolved": "https://registry.npmjs.org/@aragon/wrapper/-/wrapper-5.0.0-rc.5.tgz",
+      "integrity": "sha512-JuvHe/bxLxlqZ3iHHMa902K/Z7dLRRBcyvZq8nZ6sQ+rqWNelYC8ugSSrbzxZ1nwxQdRnbLjQy47Dlyr/LWDhg==",
       "requires": {
         "@aragon/apm": "^3.0.0",
-        "@aragon/messenger": "^1.0.0",
         "@aragon/os": "^4.0.1",
+        "@aragon/rpc-messenger": "^1.0.0",
         "@babel/runtime": "^7.1.2",
         "dot-prop": "^4.2.0",
         "eth-ens-namehash": "^2.0.8",
@@ -234,61 +255,40 @@
         "localforage": "^1.7.3",
         "localforage-memoryStorageDriver": "^0.9.2",
         "radspec": "^1.3.0",
-        "rxjs": "^5.5.6",
+        "rxjs": "^6.2.1",
         "uuid": "^3.2.1",
         "web3": "1.0.0-beta.33",
         "web3-eth-abi": "1.0.0-beta.33",
         "web3-utils": "1.0.0-beta.33"
       },
       "dependencies": {
-        "@aragon/apm": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/@aragon/apm/-/apm-3.0.0.tgz",
-          "integrity": "sha512-QlRKV4SIGdzeZ0YbRvoBxiu+5usLq6xZe5P3GXS9BpSYu2szo0gNAiZ784ituhRXu/aasTJqnrall5x625M86Q==",
+        "bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+        },
+        "rxjs": {
+          "version": "6.5.1",
+          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.1.tgz",
+          "integrity": "sha512-y0j31WJc83wPu31vS1VlAFW5JGrnGC+j+TtGAa1fRQphy48+fDYiDmX8tjGloToEsMkxnouOg/1IzXGKkJnZMg==",
           "requires": {
-            "@aragon/os": "^4.0.0",
-            "axios": "^0.18.0",
-            "ethjs-ens": "^2.0.1",
-            "ipfs-api": "^17.5.0",
-            "semver": "^5.5.0"
+            "tslib": "^1.9.0"
           }
         },
-        "ipfs-api": {
-          "version": "17.5.0",
-          "resolved": "https://registry.npmjs.org/ipfs-api/-/ipfs-api-17.5.0.tgz",
-          "integrity": "sha512-1LMao28nKBCUrvc6BUCsA3GEQ2TAoKx4Jy3BeUR3o5MVcx+dJDtXfEYDKg6WE/PWzfJF1uZGWgR9Dm2OLITR6w==",
+        "scrypt.js": {
+          "version": "0.2.0",
+          "resolved": "https://registry.npmjs.org/scrypt.js/-/scrypt.js-0.2.0.tgz",
+          "integrity": "sha1-r40UZbcemZARC+38WTuUeeA6ito=",
           "requires": {
-            "async": "^2.6.0",
-            "bs58": "^4.0.1",
-            "cids": "~0.5.2",
-            "concat-stream": "^1.6.0",
-            "detect-node": "^2.0.3",
-            "flatmap": "0.0.3",
-            "glob": "^7.1.2",
-            "ipfs-block": "~0.6.1",
-            "ipfs-unixfs": "~0.1.14",
-            "ipld-dag-pb": "~0.11.4",
-            "is-ipfs": "^0.3.2",
-            "is-stream": "^1.1.0",
-            "lru-cache": "^4.1.1",
-            "multiaddr": "^3.0.2",
-            "multihashes": "~0.4.13",
-            "ndjson": "^1.5.0",
-            "once": "^1.4.0",
-            "peer-id": "~0.10.4",
-            "peer-info": "~0.11.4",
-            "promisify-es6": "^1.0.3",
-            "pull-defer": "^0.2.2",
-            "pull-pushable": "^2.1.2",
-            "pump": "^2.0.0",
-            "qs": "^6.5.1",
-            "readable-stream": "^2.3.3",
-            "stream-http": "^2.7.2",
-            "stream-to-pull-stream": "^1.7.2",
-            "streamifier": "^0.1.1",
-            "tar-stream": "^1.5.5"
+            "scrypt": "^6.0.2",
+            "scryptsy": "^1.2.1"
           }
         },
+        "utf8": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
+          "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g="
+        },
         "web3": {
           "version": "1.0.0-beta.33",
           "resolved": "https://registry.npmjs.org/web3/-/web3-1.0.0-beta.33.tgz",
@@ -302,13 +302,251 @@
             "web3-shh": "1.0.0-beta.33",
             "web3-utils": "1.0.0-beta.33"
           }
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-          "integrity": "sha512-Y05ICatFYPAfykDIB7VdwSJ0LUl1yq/BwO2OpyGGLjiRe1fgzTwVypPiWnzkGFOVFHXrCXUNBl86bpjBhZWSJg=="
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
         },
         "cliui": {
           "version": "4.1.0",
@@ -13908,20 +14650,6 @@
           "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
           "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ=="
         },
-        "path-exists": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
-        },
-        "pump": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
-          "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
-          "requires": {
-            "end-of-stream": "^1.1.0",
-            "once": "^1.3.1"
-          }
-        },
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
diff --git a/apps/proposal/package.json b/apps/proposal/package.json
index a8460bc..a155ec3 100644
--- a/apps/proposal/package.json
+++ b/apps/proposal/package.json
@@ -6,13 +6,14 @@
     "@aragon/os": "^4.1.0",
     "@aragon/cli": "^5.5.0"
   },
-  "devDependencies": {},
+  "devDependencies": {
+    "@aragon/test-helpers": "^1.0.0"
+  },
   "scripts": {
     "start": "npm run start:aragon:ipfs",
     "start:aragon:ipfs": "aragon run",
     "start:aragon:http": "aragon run --http localhost:8001 --http-served-from ./dist",
     "start:app": "",
-    "test": "aragon contracts test",
     "compile": "aragon contracts compile",
     "sync-assets": "",
     "build:app": "",
@@ -21,7 +22,10 @@
     "publish:patch": "aragon apm publish patch",
     "publish:minor": "aragon apm publish minor",
     "publish:major": "aragon apm publish major",
-    "versions": "aragon apm versions"
+    "versions": "aragon apm versions",
+    "ganache-cli:test": "./node_modules/@aragon/test-helpers/ganache-cli.sh",
+    "test": "aragon contracts test",
+    "coverage": "SOLIDITY_COVERAGE=true npm run ganache-cli:test"
   },
   "keywords": []
 }
diff --git a/apps/proposal/test/app.js b/apps/proposal/test/app.js
deleted file mode 100644
index b35a6df..0000000
--- a/apps/proposal/test/app.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const Proposal = artifacts.require('Proposal.sol')
-
-contract('Proposal', (accounts) => {
-  it('should be tested')
-})
diff --git a/apps/proposal/test/proposal.js b/apps/proposal/test/proposal.js
new file mode 100644
index 0000000..63acc42
--- /dev/null
+++ b/apps/proposal/test/proposal.js
@@ -0,0 +1,156 @@
+const namehash = require('eth-ens-namehash').hash;
+
+const Proposal = artifacts.require("Proposal.sol");
+const { Contributor, getContributorContract } = require("../../contributor/artifacts");
+const { Contribution, getContributionContract } = require("../../contribution/artifacts");
+
+const getContract = name => artifacts.require(name)
+const { assertRevert } = require('@aragon/test-helpers/assertThrow');
+
+const ZERO_ADDR = '0x0000000000000000000000000000000000000000';
+
+contract('Proposal app', (accounts) => {
+    let kernelBase, aclBase, daoFactory, dao, acl, proposal, contribution, contributor;
+  
+    const root = accounts[0];
+    const member1 = accounts[1];
+
+    before(async() => {
+        kernelBase = await getContract('Kernel').new(true) // petrify immediately
+        aclBase = await getContract('ACL').new()
+        daoFactory = await getContract('DAOFactory').new(kernelBase.address, aclBase.address, ZERO_ADDR);
+        r = await daoFactory.newDAO(root)
+        dao = getContract('Kernel').at(r.logs.filter(l => l.event == 'DeployDAO')[0].args.dao)
+        acl = getContract('ACL').at(await dao.acl())
+    
+        //create dao mamnager permission for coin owner
+        await acl.createPermission(
+            root,
+            dao.address,
+            await dao.APP_MANAGER_ROLE(),
+            root,
+            { from: root }
+        );
+
+        //apps id
+        let appsId = [];
+        appsId[0] = namehash("kredits-contribution");
+        appsId[1] = namehash("kredits-contributor");
+        appsId[2] = namehash("kredits-proposal");
+        appsId[3] = namehash("kredits-token");
+        
+    
+        //get new app instance from DAO
+        let receipt = await dao.newAppInstance(
+            appsId[2],
+            (await Proposal.new()).address,
+            0x0,
+            false,
+            { from: root }
+        )
+        proposal = Proposal.at(
+            receipt.logs.filter(l => l.event == 'NewAppProxy')[0].args.proxy
+        );
+
+        receipt = await dao.newAppInstance(
+            appsId[1],
+            (await getContributorContract('Contributor').new()).address,
+            0x0,
+            false,
+            { from: root }
+        )
+        contributor = Contributor.at(
+            receipt.logs.filter(l => l.event == 'NewAppProxy')[0].args.proxy
+        );
+
+        receipt = await dao.newAppInstance(
+            appsId[0],
+            (await getContributionContract('Contribution').new()).address,
+            0x0,
+            false,
+            { from: root }
+        )
+        contribution = Contribution.at(
+            receipt.logs.filter(l => l.event == 'NewAppProxy')[0].args.proxy
+        );
+
+        //init app
+        await proposal.initialize(appsId);
+    
+        await acl.createPermission(
+            root,
+            proposal.address,
+            await proposal.ADD_PROPOSAL_ROLE(),
+            root,
+            { from: root }
+        )
+
+        await acl.createPermission(
+            root,
+            proposal.address,
+            await proposal.VOTE_PROPOSAL_ROLE(),
+            root,
+            { from: root }
+        );
+
+        //init contribution (app)
+        await contribution.initialize(appsId);
+    
+        await acl.createPermission(
+            root,
+            contribution.address,
+            await contribution.ADD_CONTRIBUTION_ROLE(),
+            root,
+            { from: root }
+        )
+
+        await acl.createPermission(
+            root,
+            contribution.address,
+            await contribution.VETO_CONTRIBUTION_ROLE(),
+            root,
+            { from: root }
+        );
+
+        //acl.grantPermission(proposal, contribution, await contribution.ADD_CONTRIBUTION_ROLE(), {from: root});            
+    
+        //init contributor app
+        await contributor.initialize(appsId);
+
+        await acl.createPermission(
+            root,
+            contributor.address,
+            await contributor.MANAGE_CONTRIBUTORS_ROLE(),
+            root,
+            { from: root }
+        )
+    });
+
+    describe("Owner default permissions", async() => {
+        it('check owner can add proposal', async() => {
+          let addProposalPermission = await acl.hasPermission(root, proposal.address, await proposal.ADD_PROPOSAL_ROLE());
+          assert.equal(addProposalPermission, true);
+        });  
+
+        it('check owner can veto contribution', async() => {
+            let vetoProposalPermission = await acl.hasPermission(root, proposal.address, await proposal.VOTE_PROPOSAL_ROLE());
+            assert.equal(vetoProposalPermission, true);
+        });  
+
+        it('check owner can add contribution', async() => {
+            let addContributionPermission = await acl.hasPermission(root, contribution.address, await contribution.ADD_CONTRIBUTION_ROLE());
+            assert.equal(addContributionPermission, true);
+        });   
+
+        it('check owner can veto contribution', async() => {
+            let vetoContributionPermission = await acl.hasPermission(root, contribution.address, await contribution.VETO_CONTRIBUTION_ROLE());
+            assert.equal(vetoContributionPermission, true);
+        });  
+
+        it('check owner can manage contributors', async() => {
+            let manageContributorsPermission = await acl.hasPermission(root, contributor.address, await contribution.MANAGE_CONTRIBUTORS_ROLE());
+            assert.equal(manageContributorsPermission, true);
+        });  
+    });
+
+});
\ No newline at end of file