diff --git a/helpers.ts b/helpers.ts
index 26951ef..6d70050 100644
--- a/helpers.ts
+++ b/helpers.ts
@@ -243,12 +243,12 @@ const bonsaiCW = (client: SigningCosmWasmClient) : BonsaiContract => {
     return r.data
   }
 
-  const upload = async (): Promise<number> => {
+  const upload = async (metaSource: string, builderSource: string, contractSource: string): Promise<number> => {
     const meta = {
-      source: "https://github.com/bragaz/wasm-test-contract/tree/v0.1.1",
-      builder: "cosmwasm/rust-optimizer:0.10.4"
+      source: metaSource,
+      builder: builderSource
     };
-    const sourceUrl = "https://github.com/bragaz/wasm-test-contract/releases/download/v0.1.1/my_first_contract.wasm";
+    const sourceUrl = contractSource;
     const wasm = await downloadWasm(sourceUrl);
     const result = await client.upload(wasm, meta);
     return result.codeId;
diff --git a/src/contract_tests.rs b/src/contract_tests.rs
index a906444..f210371 100644
--- a/src/contract_tests.rs
+++ b/src/contract_tests.rs
@@ -49,7 +49,8 @@ fn setup_test<S: Storage, A: Api, Q: Querier>(
         price: bonsai_price,
         number: bonsai_number,
     };
-    init(deps, env.clone(), init_msg).unwrap();
+    let sender_addr = HumanAddr::from("addr0001");
+    init(deps, env.clone(), mock_info(&sender_addr, &[]), init_msg).unwrap();
 }
 
 // return a random bonsai id
@@ -69,8 +70,9 @@ fn test_init() {
         price: coin(20, "bonsai"),
         number: 20,
     };
+    let sender_addr = HumanAddr::from("addr0001");
     let env = mock_env_height(100);
-    let res = init(&mut deps, env, init_msg).unwrap();
+    let res = init(&mut deps, env, mock_info(&sender_addr, &[]), init_msg).unwrap();
     assert_eq!(0, res.messages.len());
 
     let exp_log = vec![attr("action", "grown_bonsais")];