From 207bd9457ab9029b172cfe64773e27c3bec23d10 Mon Sep 17 00:00:00 2001
From: Artur Beljajev <artur.beljajev@internet.ee>
Date: Mon, 25 Feb 2019 22:11:56 +0200
Subject: [PATCH] Add learning tests for `countries` gem

---
 test/learning/countries_test.rb | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 test/learning/countries_test.rb

diff --git a/test/learning/countries_test.rb b/test/learning/countries_test.rb
new file mode 100644
index 000000000..dda55c6a4
--- /dev/null
+++ b/test/learning/countries_test.rb
@@ -0,0 +1,23 @@
+require 'test_helper'
+
+class CountriesLearningTest < ActiveSupport::TestCase
+  def test_returns_all_countries
+    assert_respond_to Country.all, :sort_by
+  end
+
+  def test_returns_country_name
+    assert_equal 'United States of America', Country.new('US').name
+  end
+
+  def test_returns_country_alpha2_code
+    assert_equal 'US', Country.new('US').alpha2
+  end
+
+  def test_returns_country_alpha3_code
+    assert_equal 'USA', Country.new('US').alpha3
+  end
+
+  def test_validates_code_when_creating_an_instance_of_country
+    assert_not Country.new('invalid')
+  end
+end
\ No newline at end of file