From 41713e2199fd82390e748b896e7b4060e614f69a Mon Sep 17 00:00:00 2001
From: Jesse MacFadyen <purplecabbage@gmail.com>
Date: Wed, 13 May 2020 14:46:36 -0700
Subject: [PATCH] Handle case where we do not receive any logs back (#163)

* Handle case where we do not receive any logs back
* matching test
---
 src/commands/runtime/activation/logs.js       |  4 ++++
 test/commands/runtime/activation/logs.test.js | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/commands/runtime/activation/logs.js b/src/commands/runtime/activation/logs.js
index 3fa5795b..9927a43f 100644
--- a/src/commands/runtime/activation/logs.js
+++ b/src/commands/runtime/activation/logs.js
@@ -25,6 +25,10 @@ class ActivationLogs extends RuntimeBaseCommand {
     if (flags.last) {
       const limit = Math.max(1, Math.min(flags.count, 5))
       activations = await ow.activations.list({ limit: limit, skip: 0 })
+      if (!activations || activations.length < 1) {
+        this.log('No activations to log.')
+        return
+      }
     }
     if (!activations[0].activationId) {
       // just a thought, but we could just return --last activation log when no id is present
diff --git a/test/commands/runtime/activation/logs.test.js b/test/commands/runtime/activation/logs.test.js
index 759b893c..e2e03d46 100644
--- a/test/commands/runtime/activation/logs.test.js
+++ b/test/commands/runtime/activation/logs.test.js
@@ -115,6 +115,16 @@ describe('instance methods', () => {
         })
     })
 
+    test('retrieve last logs - no-results', () => {
+      const cmd = ow.mockResolved('activations.list', [])
+      command.argv = ['-l']
+      return command.run()
+        .then(() => {
+          expect(cmd).toHaveBeenCalledWith(expect.objectContaining({ limit: 1 }))
+          expect(stdout.output).toMatch('')
+        })
+    })
+
     test('retrieve last log --last', () => {
       const listCmd = ow.mockResolved('activations.list', [{ activationId: '12345' }])
       const logCmd = ow.mockResolved(owAction, { logs: ['line1', 'line2', 'line3'] })