--- /dev/null
+require File.dirname(__FILE__) + '/../../spec_helper.rb'
+
+module HaveSpecHelper
+ def create_collection_owner_with(n)
+ owner = Spec::Expectations::Helper::CollectionOwner.new
+ (1..n).each do |n|
+ owner.add_to_collection_with_length_method(n)
+ owner.add_to_collection_with_size_method(n)
+ end
+ owner
+ end
+end
+
+describe "should have(n).items" do
+ include HaveSpecHelper
+
+ it "should pass if target has a collection of items with n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have(3).items_in_collection_with_length_method
+ owner.should have(3).items_in_collection_with_size_method
+ end
+
+ it "should convert :no to 0" do
+ owner = create_collection_owner_with(0)
+ owner.should have(:no).items_in_collection_with_length_method
+ owner.should have(:no).items_in_collection_with_size_method
+ end
+
+ it "should fail if target has a collection of items with < n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have(4).items_in_collection_with_length_method
+ }.should fail_with("expected 4 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have(4).items_in_collection_with_size_method
+ }.should fail_with("expected 4 items_in_collection_with_size_method, got 3")
+ end
+
+ it "should fail if target has a collection of items with > n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have(2).items_in_collection_with_length_method
+ }.should fail_with("expected 2 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have(2).items_in_collection_with_size_method
+ }.should fail_with("expected 2 items_in_collection_with_size_method, got 3")
+ end
+end
+
+describe 'should have(1).item when Inflector is defined' do
+ include HaveSpecHelper
+
+ before do
+ unless Object.const_defined?(:Inflector)
+ class Inflector
+ def self.pluralize(string)
+ string.to_s + 's'
+ end
+ end
+ end
+ end
+
+ it 'should pluralize the collection name' do
+ owner = create_collection_owner_with(1)
+ owner.should have(1).item
+ end
+end
+
+describe "should have(n).items where result responds to items but returns something other than a collection" do
+ it "should provide a meaningful error" do
+ owner = Class.new do
+ def items
+ Object.new
+ end
+ end.new
+ lambda do
+ owner.should have(3).items
+ end.should raise_error("expected items to be a collection but it does not respond to #length or #size")
+ end
+end
+
+describe "should_not have(n).items" do
+ include HaveSpecHelper
+
+ it "should pass if target has a collection of items with < n members" do
+ owner = create_collection_owner_with(3)
+ owner.should_not have(4).items_in_collection_with_length_method
+ owner.should_not have(4).items_in_collection_with_size_method
+ end
+
+ it "should pass if target has a collection of items with > n members" do
+ owner = create_collection_owner_with(3)
+ owner.should_not have(2).items_in_collection_with_length_method
+ owner.should_not have(2).items_in_collection_with_size_method
+ end
+
+ it "should fail if target has a collection of items with n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should_not have(3).items_in_collection_with_length_method
+ }.should fail_with("expected target not to have 3 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should_not have(3).items_in_collection_with_size_method
+ }.should fail_with("expected target not to have 3 items_in_collection_with_size_method, got 3")
+ end
+end
+
+describe "should have_exactly(n).items" do
+ include HaveSpecHelper
+
+ it "should pass if target has a collection of items with n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have_exactly(3).items_in_collection_with_length_method
+ owner.should have_exactly(3).items_in_collection_with_size_method
+ end
+
+ it "should convert :no to 0" do
+ owner = create_collection_owner_with(0)
+ owner.should have_exactly(:no).items_in_collection_with_length_method
+ owner.should have_exactly(:no).items_in_collection_with_size_method
+ end
+
+ it "should fail if target has a collection of items with < n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have_exactly(4).items_in_collection_with_length_method
+ }.should fail_with("expected 4 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have_exactly(4).items_in_collection_with_size_method
+ }.should fail_with("expected 4 items_in_collection_with_size_method, got 3")
+ end
+
+ it "should fail if target has a collection of items with > n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have_exactly(2).items_in_collection_with_length_method
+ }.should fail_with("expected 2 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have_exactly(2).items_in_collection_with_size_method
+ }.should fail_with("expected 2 items_in_collection_with_size_method, got 3")
+ end
+end
+
+describe "should have_at_least(n).items" do
+ include HaveSpecHelper
+
+ it "should pass if target has a collection of items with n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have_at_least(3).items_in_collection_with_length_method
+ owner.should have_at_least(3).items_in_collection_with_size_method
+ end
+
+ it "should pass if target has a collection of items with > n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have_at_least(2).items_in_collection_with_length_method
+ owner.should have_at_least(2).items_in_collection_with_size_method
+ end
+
+ it "should fail if target has a collection of items with < n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have_at_least(4).items_in_collection_with_length_method
+ }.should fail_with("expected at least 4 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have_at_least(4).items_in_collection_with_size_method
+ }.should fail_with("expected at least 4 items_in_collection_with_size_method, got 3")
+ end
+
+ it "should provide educational negative failure messages" do
+ #given
+ owner = create_collection_owner_with(3)
+ length_matcher = have_at_least(3).items_in_collection_with_length_method
+ size_matcher = have_at_least(3).items_in_collection_with_size_method
+
+ #when
+ length_matcher.matches?(owner)
+ size_matcher.matches?(owner)
+
+ #then
+ length_matcher.negative_failure_message.should == <<-EOF
+Isn't life confusing enough?
+Instead of having to figure out the meaning of this:
+ should_not have_at_least(3).items_in_collection_with_length_method
+We recommend that you use this instead:
+ should have_at_most(2).items_in_collection_with_length_method
+EOF
+
+ size_matcher.negative_failure_message.should == <<-EOF
+Isn't life confusing enough?
+Instead of having to figure out the meaning of this:
+ should_not have_at_least(3).items_in_collection_with_size_method
+We recommend that you use this instead:
+ should have_at_most(2).items_in_collection_with_size_method
+EOF
+ end
+end
+
+describe "should have_at_most(n).items" do
+ include HaveSpecHelper
+
+ it "should pass if target has a collection of items with n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have_at_most(3).items_in_collection_with_length_method
+ owner.should have_at_most(3).items_in_collection_with_size_method
+ end
+
+ it "should fail if target has a collection of items with > n members" do
+ owner = create_collection_owner_with(3)
+ lambda {
+ owner.should have_at_most(2).items_in_collection_with_length_method
+ }.should fail_with("expected at most 2 items_in_collection_with_length_method, got 3")
+ lambda {
+ owner.should have_at_most(2).items_in_collection_with_size_method
+ }.should fail_with("expected at most 2 items_in_collection_with_size_method, got 3")
+ end
+
+ it "should pass if target has a collection of items with < n members" do
+ owner = create_collection_owner_with(3)
+ owner.should have_at_most(4).items_in_collection_with_length_method
+ owner.should have_at_most(4).items_in_collection_with_size_method
+ end
+
+ it "should provide educational negative failure messages" do
+ #given
+ owner = create_collection_owner_with(3)
+ length_matcher = have_at_most(3).items_in_collection_with_length_method
+ size_matcher = have_at_most(3).items_in_collection_with_size_method
+
+ #when
+ length_matcher.matches?(owner)
+ size_matcher.matches?(owner)
+
+ #then
+ length_matcher.negative_failure_message.should == <<-EOF
+Isn't life confusing enough?
+Instead of having to figure out the meaning of this:
+ should_not have_at_most(3).items_in_collection_with_length_method
+We recommend that you use this instead:
+ should have_at_least(4).items_in_collection_with_length_method
+EOF
+
+ size_matcher.negative_failure_message.should == <<-EOF
+Isn't life confusing enough?
+Instead of having to figure out the meaning of this:
+ should_not have_at_most(3).items_in_collection_with_size_method
+We recommend that you use this instead:
+ should have_at_least(4).items_in_collection_with_size_method
+EOF
+ end
+end
+
+describe "have(n).items(args, block)" do
+ it "should pass args to target" do
+ target = mock("target")
+ target.should_receive(:items).with("arg1","arg2").and_return([1,2,3])
+ target.should have(3).items("arg1","arg2")
+ end
+
+ it "should pass block to target" do
+ target = mock("target")
+ block = lambda { 5 }
+ target.should_receive(:items).with("arg1","arg2", block).and_return([1,2,3])
+ target.should have(3).items("arg1","arg2", block)
+ end
+end
+
+describe "have(n).items where target IS a collection" do
+ it "should reference the number of items IN the collection" do
+ [1,2,3].should have(3).items
+ end
+
+ it "should fail when the number of items IN the collection is not as expected" do
+ lambda { [1,2,3].should have(7).items }.should fail_with("expected 7 items, got 3")
+ end
+end
+
+describe "have(n).characters where target IS a String" do
+ it "should pass if the length is correct" do
+ "this string".should have(11).characters
+ end
+
+ it "should fail if the length is incorrect" do
+ lambda { "this string".should have(12).characters }.should fail_with("expected 12 characters, got 11")
+ end
+end
+
+describe "have(n).things on an object which is not a collection nor contains one" do
+ it "should fail" do
+ lambda { Object.new.should have(2).things }.should raise_error(NoMethodError, /undefined method `things' for #<Object:/)
+ end
+end
projects / rails.git / blobdiff