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Contents
require 'spec_helper'
describe User do
it "has a name method" do
# Note: Ruby has a way to ask a class if it has a certain method defined,
# like User.respond_to?(:name) returns true or false depending on whether the
# class has a method called "name" defined on it
# RSpec's way of asserting this is with "should respond_to(:method_name)"
# Question: How does ActiveRecord know there is a name method? There is no such
# method explicitly defined in the class (user.rb)
User.should respond_to(:name)
end
it "can set and read back name" do
u = User.new
u.name = 'Joe Smith'
u.name.should == 'Joe Smith'
end
it "requires a name" do
no_name_user = User.new # Note: no attributes set at all, i.e. name is nil
# Note: the errors array on a model object is populated when valid? is called
# RSpec's be_valid is a fancy way of saying valid?.should == true
# This will call valid, and populate the error array, so we can check
# what failure occurred
no_name_user.should_not be_valid
no_name_user.errors[:name].should == ["can't be blank"]
end
it "rejects names that are too long" do
long_name_user = User.new(:name => 'a' * 51)
long_name_user.should_not be_valid
long_name_user.errors[:name].should == ["is too long (maximum is 50 characters)"]
end
end
Version data entries
7 entries across 7 versions & 2 rubygems