test: optimize and add coverage job to ./yml flow

.github/workflows/checks.yml

@@ -16,6 +16,9 @@ jobs:
       - name: Set up environment
         uses: ./.github/actions/setup
 
+      - name: Build typechain for linting
+        run: npx hardhat typechain
+
       - name: Run Solidity and Typescript linters
         run: npm run lint
 

.github/workflows/coverage.yml

@@ -0,0 +1,32 @@
+name: solidity-test-coverage
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+concurrency:
+  group: solidity-test-coverage-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up environment
+        uses: ./.github/actions/setup
+
+      - name: Generate test coverage
+        run: npm run coverage
+
+      - name: Upload artifact of tests
+        if: '!cancelled()'
+        uses: actions/upload-artifact@v4
+        with:
+          name: solidity-test-coverage
+          path: ./coverage/
+          retention-days: 7

.solcover.js

@@ -3,6 +3,9 @@ module.exports = {
   testCommand: 'npm run test',
   compileCommand: 'npm run compile',
   configureYulOptimizer: true,
+  measureStatementCoverage: true,
+  measureFunctionCoverage: true,
+  measureBranchCoverage: true,
   skipFiles: [
       'constants',
       'errors',
@@ -11,4 +14,9 @@ module.exports = {
       'utils',
       'Token.sol',
   ],
+  istanbulFolder: './coverage',
+  istanbulReporter: [
+    'html',
+    'text'
+    ]
 };

hardhat.node.config.ts

@@ -65,7 +65,7 @@ const config: HardhatUserConfig = {
               },
             },
           },
-          viaIR: process.env.COVERAGE_REPORT ? false : true,
+          viaIR: true,
         },
       },
     ],

package.json

@@ -81,7 +81,7 @@
     "clean": "hardhat clean",
     "compile:size": "hardhat size-contracts",
     "compile": "hardhat compile --config hardhat.node.config.ts",
-    "coverage": "cross-env COVERAGE_REPORT=true HARDHAT_DEPLOY_FIXTURE=true hardhat coverage --network hardhat --solcoverjs ./.solcover.js --temp artifacts --testfiles './test/**/*.test.ts'",
+    "coverage": "cross-env SOLIDITY_COVERAGE=true HARDHAT_DEPLOY_FIXTURE=true hardhat coverage --solcoverjs ./.solcover.js --testfiles './test/**/*.test.ts'",
     "deploy:base_sepolia_dev": "hardhat deploy --network base_sepolia_dev",
     "deploy:base_sepolia_stable_dev_prod": "hardhat deploy --network base_sepolia_stable_dev_prod",
     "deploy:base_sepolia_stable_dev_staging": "hardhat deploy --network base_sepolia_stable_dev_staging",