test: separate hash test contract, micro changes

__mocks__/cairo/helloSierra/hello.cairo

@@ -1,9 +1,36 @@
+use array::ArrayTrait;
+use array::SpanTrait;
+use option::OptionTrait;
+use traits::TryInto;
+use serde::Serde;
+
+#[derive(Drop)]
+struct Foo {
+    val: felt252
+}
+
+impl FooSerde of Serde::<Foo> {
+    fn serialize(ref serialized: Array<felt252>, input: Foo) {
+        Serde::<felt252>::serialize(ref serialized, input.val);
+    }
+
+    fn deserialize(ref serialized: Span<felt252>) -> Option<Foo> {
+        let val: felt252 = *serialized.pop_front()?;
+        Option::Some(Foo { val } )
+    }
+}
+
 #[contract]
 mod HelloStarknet {
+    //  libs
+    use starknet::ContractAddress;
+    use super::Foo;
+
     struct Storage {
         balance: felt252,
         balance_u8: u8,
         status: bool,
+        ca: ContractAddress,
     }
 
     // Felt252 test.
@@ -28,6 +55,17 @@ mod HelloStarknet {
         status::read()
     }
 
+    // ContractAddress
+    #[external]
+    fn set_ca(address: ContractAddress) {
+        ca::write(address);
+    }
+
+    #[view]
+    fn get_ca() -> ContractAddress {
+        ca::read()
+    }
+
     // u8 Test.
     #[external]
     fn increase_balance_u8(amount: u8) {
@@ -38,4 +76,23 @@ mod HelloStarknet {
     fn get_balance_u8() -> u8 {
         balance_u8::read()
     }
+
+    // echo Array
+    #[view]
+    fn echo_array(data: Array<u8>) -> Array<u8> {
+        data
+    }
+
+    // unamed Tuple
+    #[view]
+    fn echo_un_tuple(a:(felt252, u16)) -> (felt252, u16) {
+        a
+    }
+
+    // echo Struct
+    #[view]
+    fn echo_struct(tt: Foo) -> Foo {
+        tt
+    }
+
 }