Add port param

ethernautdao · Feb 28, 2024 · b4484a4 · b4484a4
1 parent f3c4148
commit b4484a4
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Showing 2 changed files with 32 additions and 16 deletions.
diff --git a/packages/ethernaut-network/src/tasks/local.js b/packages/ethernaut-network/src/tasks/local.js
@@ -8,17 +8,20 @@ const applyEnvVars = require('../internal/apply-env-vars')
 const local = require('../scopes/net')
   .task('local', 'Starts a local chain')
   .addOptionalParam('fork', 'The alias or url of the network to fork')
-  .setAction(async ({ fork }) => {
+  .addOptionalParam('port', 'The port to run the local chain on')
+  .setAction(async ({ fork, port }) => {
     try {
       const forkUrl = getForkUrl(fork)
 
+      port = Number(port) || 8545
+
       if (forkUrl) {
         output.info(`Starting local chain with fork ${forkUrl.url}...`)
       } else {
         output.info('Starting local chain...')
       }
 
-      startAnvil(forkUrl.unfoldedUrl)
+      startAnvil(forkUrl.unfoldedUrl, port)
     } catch (err) {
       return output.errorBox(err)
     }
@@ -47,13 +50,13 @@ function getForkUrl(fork) {
   return urlInfo
 }
 
-function startAnvil(forkUrl) {
+function startAnvil(forkUrl, port) {
   execSync('anvil --version', { stdio: 'inherit' })
 
   if (!forkUrl) {
-    execSync('anvil', { stdio: 'inherit' })
+    execSync(`anvil --port ${port}`, { stdio: 'inherit' })
   } else {
-    execSync(`anvil --fork-url ${forkUrl}`, { stdio: 'inherit' })
+    execSync(`anvil --fork-url ${forkUrl} --port ${port}`, { stdio: 'inherit' })
   }
 }
 

diff --git a/packages/ethernaut-network/test/tasks/local.test.js b/packages/ethernaut-network/test/tasks/local.test.js
@@ -5,7 +5,7 @@ const storage = require('../../src/internal/storage')
 describe('local', function () {
   const terminal = new Terminal()
 
-  describe('when the fork is not provided', function () {
+  describe('when parameters are not provided', function () {
     before('run', async function () {
       await terminal.run('npx hardhat net local', 2000)
     })
@@ -19,27 +19,40 @@ describe('local', function () {
     })
 
     describe('when none is selected', function () {
-      before('press enter', async function () {
+      before('enter parameters', async function () {
         await terminal.input('\n', 2000)
       })
 
-      after('close', async function () {
-        await terminal.input(keys.CTRLC, 1000)
+      it('queries for a port number', async function () {
+        assert.ok(terminal.output.includes('Enter port'), terminal.output)
       })
 
-      it('starts a local chain', async function () {
-        assert.ok(
-          terminal.output.includes('Available Accounts'),
-          terminal.output,
-        )
+      describe('when 8546 is entered', function () {
+        before('input', async function () {
+          await terminal.input('8546\n', 2000)
+        })
+
+        after('close', async function () {
+          await terminal.input(keys.CTRLC, 1000)
+        })
+
+        it('starts a local chain', async function () {
+          assert.ok(
+            terminal.output.includes('Listening on 127.0.0.1:8546'),
+            terminal.output,
+          )
+        })
       })
     })
   })
 
-  describe('when the fork is provided', function () {
+  describe('when parameters are provided', function () {
     describe('with none', function () {
       before('run', async function () {
-        await terminal.run('npx hardhat net local --fork none', 2000)
+        await terminal.run(
+          'npx hardhat net local --fork none --port 8545',
+          2000,
+        )
       })
 
       it('starts a local chain', async function () {