From 1321c46178fbb41a0e498c6ebf316311631caded Mon Sep 17 00:00:00 2001
From: Alexander Popov <alex.wayfer@gmail.com>
Date: Tue, 7 Mar 2017 00:35:23 +0300
Subject: [PATCH] Add microseconds specs for File.mtime, .atime and .ctime

Reference: https://github.com/jruby/jruby/issues/4520#issuecomment-284501906

Three attemps to avoid zero in these values with small sleep (if failed).

And some code refactoring.
---
 core/file/atime_spec.rb | 12 ++++++++++--
 core/file/ctime_spec.rb | 12 ++++++++++--
 core/file/mtime_spec.rb | 10 +++++++++-
 3 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/core/file/atime_spec.rb b/core/file/atime_spec.rb
index d53ef3b2c2..845616456d 100644
--- a/core/file/atime_spec.rb
+++ b/core/file/atime_spec.rb
@@ -4,6 +4,11 @@
   before :each do
     @file = tmp('test.txt')
     touch @file
+    3.times do
+      @atime = File.atime(@file)
+      break if @atime.usec > 0
+      sleep 0.1
+    end
   end
 
   after :each do
@@ -11,8 +16,11 @@
   end
 
   it "returns the last access time for the named file as a Time object" do
-    File.atime(@file)
-    File.atime(@file).should be_kind_of(Time)
+    @atime.should be_kind_of(Time)
+  end
+
+  it "returns the last access time for the named file with microseconds" do
+    @atime.usec.should > 0
   end
 
   it "raises an Errno::ENOENT exception if the file is not found" do
diff --git a/core/file/ctime_spec.rb b/core/file/ctime_spec.rb
index efcce3af7b..59d21e3643 100644
--- a/core/file/ctime_spec.rb
+++ b/core/file/ctime_spec.rb
@@ -3,6 +3,11 @@
 describe "File.ctime" do
   before :each do
     @file = __FILE__
+    3.times do
+      @ctime = File.ctime(@file)
+      break if @ctime.usec > 0
+      sleep 0.1
+    end
   end
 
   after :each do
@@ -10,8 +15,11 @@
   end
 
   it "Returns the change time for the named file (the time at which directory information about the file was changed, not the file itself)." do
-    File.ctime(@file)
-    File.ctime(@file).should be_kind_of(Time)
+    @ctime.should be_kind_of(Time)
+  end
+
+  it "Returns the change time for the named file (the time at which directory information about the file was changed, not the file itself) with microseconds." do
+    @ctime.usec.should > 0
   end
 
   it "accepts an object that has a #to_path method" do
diff --git a/core/file/mtime_spec.rb b/core/file/mtime_spec.rb
index ed17ab6c82..d36b8a362b 100644
--- a/core/file/mtime_spec.rb
+++ b/core/file/mtime_spec.rb
@@ -3,7 +3,11 @@
 describe "File.mtime" do
   before :each do
     @filename = tmp('i_exist')
-    touch(@filename) { @mtime = Time.now }
+    3.times do
+      touch(@filename) { @mtime = Time.now }
+      break if @mtime.usec > 0
+      sleep 0.1
+    end
   end
 
   after :each do
@@ -15,6 +19,10 @@
     File.mtime(@filename).should be_close(@mtime, 2.0)
   end
 
+  it "returns the modification Time of the file with microseconds" do
+    File.mtime(@filename).usec.should > 0
+  end
+
   it "raises an Errno::ENOENT exception if the file is not found" do
     lambda { File.mtime('bogus') }.should raise_error(Errno::ENOENT)
   end