am/model testing

app/models/customer.rb

@@ -1,3 +1,7 @@
 class Customer < ApplicationRecord
   validates :name, presence: true
+  validates :registered_at, presence: true
+  validates :postal_code, presence: true
+  validates :phone, presence: true
+  validates :movies_checked_out_count, presence: true
 end

test/models/customer_test.rb

@@ -1,46 +1,70 @@
 require "test_helper"
 
 describe Customer do
+  describe "validations" do
   # let(:customer) { Customer.new }
 
-  it "you can create a customer" do
-    customer = Customer.new
-    customer.valid?.must_equal true
-  end
+    it "you can create a customer" do
+      customer = customers(:bare_minimum)
+      customer.valid?.must_equal true
+    end
 
-  it "won't create customer without name" do
-    customer = customers(:bare_minimum)
-    customer.name = ""
+    it "won't create customer without name" do
+      customer = customers(:bare_minimum)
+      customer.name = ""
 
-    customer.valid?.must_equal false
-    customer.errors.messages.must_include :name
-  end
+      customer.valid?.must_equal false
+      customer.errors.messages.must_include :name
+    end
+
+    it "won't create customer without registered_at" do
+      customer = customers(:bare_minimum)
+      customer.registered_at = ""
+
+      customer.valid?.must_equal false
+      customer.errors.messages.must_include :registered_at
+    end
+
+    it "won't create customer without postal_code" do
+      customer = customers(:bare_minimum)
+      customer.postal_code = ""
+
+      customer.valid?.must_equal false
+      customer.errors.messages.must_include :postal_code
+    end
+
+    it "won't create customer without phone" do
+      customer = customers(:bare_minimum)
+      customer.phone = ""
 
-  # it "won't create customer without registered_at" do
-  #
-  # end
-  #
-  # it "won't create customer without postal_code" do
-  #
-  # end
-  #
-  # it "won't create customer without phone" do
-  #
-  # end
-  #
-  # it "won't create customer without movies_checked_out_count" do
-  #
-  # end
-  #
-  # it "creates customer without address" do
-  #
-  # end
-  #
-  # it "creates customer without city" do
-  #
-  # end
-  #
-  # it "creates customer without state" do
-  #
-  # end
+      customer.valid?.must_equal false
+      customer.errors.messages.must_include :phone
+    end
+
+    it "won't create customer without movies_checked_out_count" do
+      customer = customers(:bare_minimum)
+      customer.movies_checked_out_count = nil
+
+      customer.valid?.must_equal false
+      customer.errors.messages.must_include :movies_checked_out_count
+    end
+
+    it "creates customer without address" do
+      customer = customers("has_all")
+      customer.address = ""
+      customer.valid?.must_equal true
+    end
+
+    it "creates customer without city" do
+      customer = customers("has_all")
+      customer.city = ""
+      customer.valid?.must_equal true
+    end
+
+    it "creates customer without state" do
+      customer = customers("has_all")
+      customer.state = ""
+      customer.valid?.must_equal true
+    end
+  end
 end