refactors lock tries [#279]

spec/models/lock_spec.rb

@@ -0,0 +1,59 @@
+require 'rails_helper'
+
+describe Lock do
+
+  let(:lock) { create(:lock) }
+
+  describe "#locked?" do
+    it "returns true if locked_until is after the current time" do
+      lock.locked_until = 1.day.from_now
+      expect(lock.locked?).to be true
+    end
+
+    it "return false if locked_until is before curren time" do
+      lock.locked_until = 1.day.ago
+      expect(lock.locked?).to be false
+    end
+  end
+
+  describe "#lock_time" do
+    it "increases exponentially with number of tries" do
+      lock.tries = 5
+      lock.save
+      expect(lock.reload.lock_time).to be_between(30.minutes.from_now, 35.minutes.from_now)
+
+      lock.tries = 10
+      lock.save
+      expect(lock.reload.lock_time).to be_between(16.hours.from_now, 18.hours.from_now)
+
+      lock.tries = 15
+      lock.save
+      expect(lock.reload.lock_time).to be_between(21.days.from_now, 23.days.from_now)
+    end
+  end
+
+  describe "#too_many_tries?" do
+    it "returns true if number of tries is multiple of 5" do
+      lock.tries = 5
+      expect(lock.too_many_tries?).to be true
+
+      lock.tries = 10
+      expect(lock.too_many_tries?).to be true
+
+      lock.tries = 15
+      expect(lock.too_many_tries?).to be true
+    end
+
+    it "returns false if number of tries is not multiple of 5" do
+      lock.tries = 0
+      expect(lock.too_many_tries?).to be false
+
+      lock.tries = 1
+      expect(lock.too_many_tries?).to be false
+
+      lock.tries = 6
+      expect(lock.too_many_tries?).to be false
+    end
+  end
+
+end