feat: add sway tests to create-fuels

.changeset/green-cars-happen.md

@@ -0,0 +1,5 @@
+---
+"create-fuels": patch
+---
+
+feat: add sway tests to `create-fuels`

apps/create-fuels-counter-guide/package.json

@@ -5,6 +5,7 @@
   "type": "module",
   "scripts": {
     "test": "vitest",
+    "test:unit": "cd sway-programs && forc test",
     "original:dev": "vite",
     "original:build": "tsc -b && vite build",
     "original:start": "next start",

apps/create-fuels-counter-guide/sway-programs/contract/src/main.sw

@@ -45,3 +45,16 @@ impl Counter for Contract {
     }
 }
 // #endregion create-fuels-counter-guide-impl
+
+
+// #region create-fuels-counter-guide-sway-test
+#[test]
+fn test_decrement_counter() {
+    let contract_instance = abi(Counter, CONTRACT_ID);
+    let _ = contract_instance.increment_counter(5);
+
+    let count_before = contract_instance.get_count();
+    let count_after = contract_instance.decrement_counter(1);
+    assert(count_after == count_before - 1);
+}
+// #endregion create-fuels-counter-guide-sway-test

apps/docs/src/guide/creating-a-fuel-dapp/index.md

@@ -195,10 +195,16 @@ Whenever you want to add a new feature to your dApp and quickly prototype things
 
 Testing the integration with your smart contract isn't essential, but it's good practice to ensure that your application is working as expected. It also gives you the ability to test your application in a controlled environment against a local node.
 
-We've provided some examples for each program type in the `./test` directory of your project. But let's also add a test for our new `decrement_counter` function in the `./test/contract.test.ts` file:
+We've provided some examples for each program type in the `./test` directory of your project, and in the `.sw` source files as well.
+
+But let's also add a test for our new `decrement_counter` function in the `./test/contract.test.ts` file:
 
 <<< @/../../docs-snippets/src/guide/create-fuels/decrement_counter.test.ts#decrement-counter{ts:line-numbers}
 
+And a test for the decrement function in the `./sway-programs/contract/src/main.sw` file:
+
+<<< @/../../create-fuels-counter-guide/sway-programs/contract/src/main.sw#create-fuels-counter-guide-sway-test{rust:line-numbers}
+
 ## Next Steps
 
 - Now that you have a basic counter dApp running and have the `npm create fuels` workflow powering you, you can start building more complex dApps using the Fuel Stack. A good place to start for ideas and reference code is the [Sway Applications Repo](https://github.com/FuelLabs/sway-applications).

templates/nextjs/package.json

@@ -9,7 +9,8 @@
     "build": "pnpm run xprebuild && next build",
     "start": "next start",
     "lint": "next lint",
-    "test": "vitest"
+    "test": "vitest",
+    "test:unit": "cd sway-programs && forc test"
   },
   "dependencies": {
     "@fuels/connectors": "^0.27.1",

templates/nextjs/sway-programs/contract/src/main.sw

@@ -30,3 +30,18 @@ impl Counter for Contract {
         storage.counter.read()
     }
 }
+
+#[test]
+fn test_get_count() {
+    let contract_instance = abi(Counter, CONTRACT_ID);
+    let count = contract_instance.get_count();
+    assert(count == 0);
+}
+
+#[test]
+fn test_increment_counter() {
+    let contract_instance = abi(Counter, CONTRACT_ID);
+    let count_before = contract_instance.get_count();
+    let count_after = contract_instance.increment_counter(1);
+    assert(count_after == count_before + 1);
+}

templates/nextjs/sway-programs/predicate/src/main.sw

@@ -6,3 +6,12 @@ predicate;
 fn main(password: u64) -> bool {
     return password == 1337;
 }
+
+#[test]
+fn test_main() {
+    let result1 = main(1337);
+    assert(result1 == true);
+
+    let result2 = main(1338);
+    assert(result2 == false);
+}

templates/nextjs/sway-programs/script/src/main.sw

@@ -4,3 +4,9 @@ script;
 fn main(input: u64) -> u64 {
     return input;
 }
+
+#[test]
+fn test_main() {
+    let result = main(1337);
+    assert(result == 1337);
+}

templates/vite/package.json

@@ -9,7 +9,8 @@
     "build": "pnpm run xprebuild && tsc -b && vite build",
     "lint": "eslint .",
     "fuels:dev": "fuels dev",
-    "test": "vitest"
+    "test": "vitest",
+    "test:unit": "cd sway-programs && forc test"
   },
   "dependencies": {
     "@fuels/connectors": "^0.27.1",

templates/vite/sway-programs/contract/src/main.sw

@@ -30,3 +30,18 @@ impl Counter for Contract {
         storage.counter.read()
     }
 }
+
+#[test]
+fn test_get_count() {
+    let contract_instance = abi(Counter, CONTRACT_ID);
+    let count = contract_instance.get_count();
+    assert(count == 0);
+}
+
+#[test]
+fn test_increment_counter() {
+    let contract_instance = abi(Counter, CONTRACT_ID);
+    let count_before = contract_instance.get_count();
+    let count_after = contract_instance.increment_counter(1);
+    assert(count_after == count_before + 1);
+}

templates/vite/sway-programs/predicate/src/main.sw

@@ -6,3 +6,12 @@ predicate;
 fn main(password: u64) -> bool {
     return password == 1337;
 }
+
+#[test]
+fn test_main() {
+    let result1 = main(1337);
+    assert(result1 == true);
+
+    let result2 = main(1338);
+    assert(result2 == false);
+}

templates/vite/sway-programs/script/src/main.sw

@@ -4,3 +4,9 @@ script;
 fn main(input: u64) -> u64 {
     return input;
 }
+
+#[test]
+fn test_main() {
+    let result = main(1337);
+    assert(result == 1337);
+}