Add file storage

spec/spec_helper.cr

@@ -1,2 +1,25 @@
 require "spec"
 require "../src/dayoff/**"
+
+def d(day)
+  location = Time::Location.load("Europe/Moscow")
+  Time.local(2019, 1, day, location: location)
+end
+
+def t(day, hour, min = 0)
+  location = Time::Location.load("Europe/Moscow")
+  Time.local(2019, 1, day, hour, min, location: location)
+end
+
+def with_temp_dir(&block)
+  tmpdir = File.tempname("dayoff_file_storage")
+  Dir.mkdir tmpdir
+  begin
+    yield tmpdir
+  ensure
+    Dir.glob(tmpdir + "/*") do |f|
+      File.delete f
+    end
+    Dir.rmdir tmpdir
+  end
+end