Add sig list task

packages/ethernaut-signer/src/tasks/list.js

@@ -0,0 +1,18 @@
+const output = require('common/src/output')
+const storage = require('../internal/storage')
+
+require('../scopes/sig')
+  .task('list', 'Prints all signers')
+  .setAction(async () => {
+    try {
+      const signers = storage.readSigners()
+      const strs = []
+      Object.entries(signers).forEach(([name, signer]) => {
+        if (name === 'activeSigner') return
+        strs.push(`- ${name} (${signer.address})`)
+      })
+      output.resultBox(strs.join('\n'))
+    } catch (err) {
+      return output.errorBox(err)
+    }
+  })

packages/ethernaut-signer/test/tasks/list.test.js

@@ -0,0 +1,31 @@
+const { Terminal } = require('common/src/terminal')
+const storage = require('../../src/internal/storage')
+
+describe('list', function () {
+  const terminal = new Terminal()
+
+  before('add some signers', async function () {
+    const signers = storage.readSigners()
+    if (!('test__3' in signers)) signers.test__3 = { address: 'poop1' }
+    if (!('test__4' in signers)) signers.test__4 = { address: 'poop2' }
+    storage.storeSigners(signers)
+  })
+
+  after('remove signers', async function () {
+    const signers = storage.readSigners()
+    if ('test__3' in signers) delete signers.test__3
+    if ('test__4' in signers) delete signers.test__4
+    storage.storeSigners(signers)
+  })
+
+  describe('when calling list', function () {
+    before('call', async function () {
+      await terminal.run('npx hardhat sig list')
+    })
+
+    it('prints the signers', async function () {
+      terminal.has('- test__3 (poop1)')
+      terminal.has('- test__4 (poop2)')
+    })
+  })
+})