From 30da7a363c8ca4f95ae1de90387c38661c1ef8a9 Mon Sep 17 00:00:00 2001
From: Brian Coca <bcoca@users.noreply.github.com>
Date: Fri, 18 Jan 2019 22:41:29 -0500
Subject: [PATCH] allows loop pause for subseconds (#50461)

* allows loop pause for subseconds
* skip test on os x and bsd since date commands lacks nano

fixes #49951
---
 changelogs/fragments/pause_subsecs.yml        |  2 ++
 lib/ansible/playbook/loop_control.py          |  2 +-
 test/integration/targets/loops/tasks/main.yml | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 changelogs/fragments/pause_subsecs.yml

diff --git a/changelogs/fragments/pause_subsecs.yml b/changelogs/fragments/pause_subsecs.yml
new file mode 100644
index 00000000000..8819f4a7e05
--- /dev/null
+++ b/changelogs/fragments/pause_subsecs.yml
@@ -0,0 +1,2 @@
+minor_changes:
+    - loop_control's pause now allows for fractions of a second
diff --git a/lib/ansible/playbook/loop_control.py b/lib/ansible/playbook/loop_control.py
index 9e3cbb76a8f..d840644fc81 100644
--- a/lib/ansible/playbook/loop_control.py
+++ b/lib/ansible/playbook/loop_control.py
@@ -28,7 +28,7 @@ class LoopControl(FieldAttributeBase):
     _loop_var = FieldAttribute(isa='str', default='item')
     _index_var = FieldAttribute(isa='str')
     _label = FieldAttribute(isa='str')
-    _pause = FieldAttribute(isa='int', default=0)
+    _pause = FieldAttribute(isa='float', default=0)
     _extended = FieldAttribute(isa='bool')
 
     def __init__(self):
diff --git a/test/integration/targets/loops/tasks/main.yml b/test/integration/targets/loops/tasks/main.yml
index c46c165d99b..c0a4f14da08 100644
--- a/test/integration/targets/loops/tasks/main.yml
+++ b/test/integration/targets/loops/tasks/main.yml
@@ -23,6 +23,25 @@
     that:
     - '(after.stdout |int) - (before.stdout|int) >= 4'
 
+- name: test subsecond pause
+  block:
+    - name: Measure time before loop with .5s pause
+      set_fact:
+        times: "{{times|default([]) + [ lookup('pipe','date +%s.%3N') ]}}"
+      with_sequence: count=3
+      loop_control:
+        pause: 0.6
+
+    - name: ensure lag, since there is 3 rounds, and 0.5 seconds between, it should last 1.2 seconds, but allowing leeway due to CI lag
+      assert:
+        that:
+            - tdiff|float >= 1.2
+            - tdiff|int < 3
+      vars:
+        tdiff: '{{ times[2]|float - times[0]|float }}'
+  when:
+    - ansible_facts['distribution'] not in ("MacOSX", "FreeBSD")
+
 #
 # Tests of loop syntax with args
 #