Add file storage

spec/profile_spec.cr

@@ -3,16 +3,6 @@ require "./spec_helper"
 module Dayoff::Test
   extend self
 
-  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 create_profile
     storage = MemoryStorage.new
     storage.set_planned_dates [

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

spec/storage_spec.cr

@@ -0,0 +1,17 @@
+require "./spec_helper"
+
+module Dayoff::Test
+  describe Storage do
+    it "can store data in file" do
+      with_temp_dir do |tmpdir|
+        storage = FileStorage.new tmpdir
+        storage.set_planned_dates [
+          PlannedDate.new(d(1), 8),
+          PlannedDate.new(d(1), 8),
+        ]
+        entries = Dir.glob(tmpdir + "/*")
+        1.should eq entries.size
+      end
+    end
+  end
+end