vendor/plugins/rspec/rspec/spec/spec/matchers/description_generation_spec.rb

   1 require File.dirname(__FILE__) + '/../../spec_helper.rb'
   2
   3 describe "Matchers should be able to generate their own descriptions" do
   4   before(:each) do
   5     Spec::Matchers.clear_generated_description
   6   end
   7
   8   after(:each) do
   9     Spec::Matchers.clear_generated_description
  10   end
  11
  12   it "should == expected" do
  13     "this".should == "this"
  14     Spec::Matchers.generated_description.should == "should == \"this\""
  15   end
  16
  17   it "should not == expected" do
  18     "this".should_not == "that"
  19     Spec::Matchers.generated_description.should == "should not == \"that\""
  20   end
  21
  22   it "should be empty (arbitrary predicate)" do
  23     [].should be_empty
  24     Spec::Matchers.generated_description.should == "should be empty"
  25   end
  26
  27   it "should not be empty (arbitrary predicate)" do
  28     [1].should_not be_empty
  29     Spec::Matchers.generated_description.should == "should not be empty"
  30   end
  31
  32   it "should be true" do
  33     true.should be_true
  34     Spec::Matchers.generated_description.should == "should be true"
  35   end
  36
  37   it "should be false" do
  38     false.should be_false
  39     Spec::Matchers.generated_description.should == "should be false"
  40   end
  41
  42   it "should be nil" do
  43     nil.should be_nil
  44     Spec::Matchers.generated_description.should == "should be nil"
  45   end
  46
  47   it "should be > n" do
  48     5.should be > 3
  49     Spec::Matchers.generated_description.should == "should be > 3"
  50   end
  51
  52   it "should be predicate arg1, arg2 and arg3" do
  53     5.0.should be_between(0,10)
  54     Spec::Matchers.generated_description.should == "should be between 0 and 10"
  55   end
  56
  57   it "should be_few_words predicate should be transformed to 'be few words'" do
  58     5.should be_kind_of(Fixnum)
  59     Spec::Matchers.generated_description.should == "should be kind of Fixnum"
  60   end
  61
  62   it "should preserve a proper prefix for be predicate" do
  63     5.should be_a_kind_of(Fixnum)
  64     Spec::Matchers.generated_description.should == "should be a kind of Fixnum"
  65     5.should be_an_instance_of(Fixnum)
  66     Spec::Matchers.generated_description.should == "should be an instance of Fixnum"
  67   end
  68
  69   it "should equal" do
  70     expected = "expected"
  71     expected.should equal(expected)
  72     Spec::Matchers.generated_description.should == "should equal \"expected\""
  73   end
  74
  75   it "should_not equal" do
  76     5.should_not equal(37)
  77     Spec::Matchers.generated_description.should == "should not equal 37"
  78   end
  79
  80   it "should eql" do
  81     "string".should eql("string")
  82     Spec::Matchers.generated_description.should == "should eql \"string\""
  83   end
  84
  85   it "should not eql" do
  86     "a".should_not eql(:a)
  87     Spec::Matchers.generated_description.should == "should not eql :a"
  88   end
  89
  90   it "should have_key" do
  91     {:a => "a"}.should have_key(:a)
  92     Spec::Matchers.generated_description.should == "should have key :a"
  93   end
  94
  95   it "should have n items" do
  96     team.should have(3).players
  97     Spec::Matchers.generated_description.should == "should have 3 players"
  98   end
  99
 100   it "should have at least n items" do
 101     team.should have_at_least(2).players
 102     Spec::Matchers.generated_description.should == "should have at least 2 players"
 103   end
 104
 105   it "should have at most n items" do
 106     team.should have_at_most(4).players
 107     Spec::Matchers.generated_description.should == "should have at most 4 players"
 108   end
 109
 110   it "should include" do
 111     [1,2,3].should include(3)
 112     Spec::Matchers.generated_description.should == "should include 3"
 113   end
 114
 115   it "should match" do
 116     "this string".should match(/this string/)
 117     Spec::Matchers.generated_description.should == "should match /this string/"
 118   end
 119
 120   it "should raise_error" do
 121     lambda { raise }.should raise_error
 122     Spec::Matchers.generated_description.should == "should raise Exception"
 123   end
 124
 125   it "should raise_error with type" do
 126     lambda { raise }.should raise_error(RuntimeError)
 127     Spec::Matchers.generated_description.should == "should raise RuntimeError"
 128   end
 129
 130   it "should raise_error with type and message" do
 131     lambda { raise "there was an error" }.should raise_error(RuntimeError, "there was an error")
 132     Spec::Matchers.generated_description.should == "should raise RuntimeError with \"there was an error\""
 133   end
 134
 135   it "should respond_to" do
 136     [].should respond_to(:insert)
 137     Spec::Matchers.generated_description.should == "should respond to #insert"
 138   end
 139
 140   it "should throw symbol" do
 141     lambda { throw :what_a_mess }.should throw_symbol
 142     Spec::Matchers.generated_description.should == "should throw a Symbol"
 143   end
 144
 145   it "should throw symbol (with named symbol)" do
 146     lambda { throw :what_a_mess }.should throw_symbol(:what_a_mess)
 147     Spec::Matchers.generated_description.should == "should throw :what_a_mess"
 148   end
 149
 150   def team
 151     Class.new do
 152       def players
 153         [1,2,3]
 154       end
 155     end.new
 156   end
 157 end