Chore: Fix coverage task

.solcover.js

@@ -1,14 +1,11 @@
-const skipFiles = [
-  'lib',
-  'test',
-  'acl/ACLSyntaxSugar.sol',
-  'common/DepositableStorage.sol', // Used in tests that send ETH
-  'common/UnstructuredStorage.sol' // Used in tests that send ETH
-]
-
 module.exports = {
-    norpc: true,
-    compileCommand: '../node_modules/.bin/truffle compile',
-    testCommand: 'node --max-old-space-size=4096 ../node_modules/.bin/truffle test --network coverage',
-    skipFiles,
+  skipFiles: [
+    'lib',
+    'test',
+    'acl/ACLSyntaxSugar.sol',
+  ],
+  mocha: {
+    grep: '@skip-on-coverage', // Find everything with this tag
+    invert: true               // Run the grep's inverse set.
+  }
 }

package.json

@@ -20,7 +20,7 @@
     "test:gas": "GAS_REPORTER=true npm test",
     "test:gas:ci": "yarn test:gas && npx codechecks",
     "test:ganache-cli": "./node_modules/@aragon/contract-helpers-test/scripts/ganache-cli.sh",
-    "coverage": "SOLIDITY_COVERAGE=true yarn test:ganache-cli",
+    "coverage": "npx truffle run coverage",
     "abi:extract": "truffle-extract --output abi/ --keys abi",
     "bytecode:extract": "truffle-bytecode extract -o bytecode",
     "bytecode:extract:new": "truffle-bytecode extract -o bytecode_new",

test/contracts/acl/acl_params.js

@@ -1,5 +1,4 @@
 const { assertRevert } = require('@aragon/contract-helpers-test/src/asserts')
-const { skipSuiteCoverage } = require('../../helpers/coverage')
 const { permissionParamEqOracle } = require('../../helpers/permissionParams')
 
 const ACL = artifacts.require('ACL')
@@ -118,7 +117,7 @@ contract('ACL params', ([permissionsRoot, specificEntity, noPermission, mockAppA
       ['asserts', AssertOracle],
       ['uses all available gas', OverGasLimitOracle],
     ]) {
-      skipSuiteCoverage(describe)(`when the oracle ${description}`, () => {
+      describe(`when the oracle ${description} [@skip-on-coverage]`, () => {
         let overGasLimitOracle
 
         before(async () => {

test/contracts/apps/recovery_to_vault.js

@@ -241,9 +241,9 @@ contract('Recovery to vault', ([permissionsRoot]) => {
               await assertRevert(target.sendTransaction({ value: 1, data: '0x01', gas: SEND_ETH_GAS }))
             })
 
-            it('recovers ETH', async () =>
+            it('recovers ETH [@skip-on-coverage]', async () => {
               await recoverEth({ target, vault })
-            )
+            })
 
             for (const { title, tokenContract } of tokenTestGroups) {
               it(`recovers ${title}`, async () => {
@@ -334,7 +334,7 @@ contract('Recovery to vault', ([permissionsRoot]) => {
       await kernel.setRecoveryVaultAppId(vaultId)
     })
 
-    it('recovers ETH from the kernel', async () => {
+    it('recovers ETH from the kernel [@skip-on-coverage]', async () => {
       await recoverEth({ target: kernel, vault })
     })
   })

test/contracts/common/depositable_delegate_proxy.js

@@ -1,4 +1,3 @@
-const { skipCoverage } = require('../../helpers/coverage')
 const { bn } = require('@aragon/contract-helpers-test')
 const { assertAmountOfEvents, assertEvent, assertRevert, assertOutOfGas, assertBn } = require('@aragon/contract-helpers-test/src/asserts')
 
@@ -11,7 +10,7 @@ const ProxyTargetWithFallback = artifacts.require('ProxyTargetWithFallback')
 const TX_BASE_GAS = 21000
 const SEND_ETH_GAS = TX_BASE_GAS + 9999 // <10k gas is the threshold for depositing
 const PROXY_FORWARD_GAS = TX_BASE_GAS + 2e6 // high gas amount to ensure that the proxy forwards the call
-const FALLBACK_SETUP_GAS = process.env.SOLIDITY_COVERAGE ? 5000 : 100 // rough estimation of how much gas it spends before executing the fallback code
+const FALLBACK_SETUP_GAS = 100 // rough estimation of how much gas it spends before executing the fallback code
 const SOLIDITY_TRANSFER_GAS = 2300
 
 contract('DepositableDelegateProxy', ([ sender ]) => {
@@ -45,7 +44,7 @@ contract('DepositableDelegateProxy', ([ sender ]) => {
 
         itSuccessfullyForwardsCall()
 
-        it('can receive ETH', async () => {
+        it('can receive ETH [@skip-on-coverage]', async () => {
           const receipt = await target.sendTransaction({ value: 1, gas: SEND_ETH_GAS + FALLBACK_SETUP_GAS })
           assertAmountOfEvents(receipt, 'ReceivedEth')
         })
@@ -115,22 +114,17 @@ contract('DepositableDelegateProxy', ([ sender ]) => {
       }
 
       it('can receive ETH', async () => {
-        const { gasUsed } = await assertSendEthToProxy({ value, gas: SEND_ETH_GAS })
+        await assertSendEthToProxy({ value, gas: SEND_ETH_GAS })
       })
 
-      it(
-        'cannot receive ETH if sent with a small amount of gas',
-        // Our version of solidity-coverage is not on an istanbul context yet
-        // TODO: update solidity-coverage
-        skipCoverage(async () => {
-          const oogDecrease = 250
-          // deposit cannot be done with this amount of gas
-          const gas = TX_BASE_GAS + SOLIDITY_TRANSFER_GAS - oogDecrease
-          await assertSendEthToProxy({ shouldOOG: true, value, gas })
-        })
-      )
+      it('cannot receive ETH if sent with a small amount of gas [@skip-on-coverage]', async () => {
+        const oogDecrease = 250
+        // deposit cannot be done with this amount of gas
+        const gas = TX_BASE_GAS + SOLIDITY_TRANSFER_GAS - oogDecrease
+        await assertSendEthToProxy({ shouldOOG: true, value, gas })
+      })
 
-      it('can receive ETH from contract', async () => {
+      it('can receive ETH from contract [@skip-on-coverage]', async () => {
         const receipt = await ethSender.sendEth(proxy.address, { value })
 
         assertAmountOfEvents(receipt, 'ProxyDeposit', { decodeForAbi: proxy.abi })