vendor/gems/rspec-1.1.2/spec/spec/mocks/multiple_return_value_spec.rb

   1 require File.dirname(__FILE__) + '/../../spec_helper'
   2
   3 module Spec
   4   module Mocks
   5     describe "a Mock expectation with multiple return values and no specified count" do
   6       before(:each) do
   7         @mock = Mock.new("mock")
   8         @return_values = ["1",2,Object.new]
   9         @mock.should_receive(:message).and_return(@return_values[0],@return_values[1],@return_values[2])
  10       end
  11
  12       it "should return values in order to consecutive calls" do
  13         @mock.message.should == @return_values[0]
  14         @mock.message.should == @return_values[1]
  15         @mock.message.should == @return_values[2]
  16         @mock.rspec_verify
  17       end
  18
  19       it "should complain when there are too few calls" do
  20         third = Object.new
  21         @mock.message.should == @return_values[0]
  22         @mock.message.should == @return_values[1]
  23         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it twice")
  24       end
  25
  26       it "should complain when there are too many calls" do
  27         third = Object.new
  28         @mock.message.should == @return_values[0]
  29         @mock.message.should == @return_values[1]
  30         @mock.message.should == @return_values[2]
  31         @mock.message.should == @return_values[2]
  32         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it 4 times")
  33       end
  34     end
  35
  36     describe "a Mock expectation with multiple return values with a specified count equal to the number of values" do
  37       before(:each) do
  38         @mock = Mock.new("mock")
  39         @return_values = ["1",2,Object.new]
  40         @mock.should_receive(:message).exactly(3).times.and_return(@return_values[0],@return_values[1],@return_values[2])
  41       end
  42
  43       it "should return values in order to consecutive calls" do
  44         @mock.message.should == @return_values[0]
  45         @mock.message.should == @return_values[1]
  46         @mock.message.should == @return_values[2]
  47         @mock.rspec_verify
  48       end
  49
  50       it "should complain when there are too few calls" do
  51         third = Object.new
  52         @mock.message.should == @return_values[0]
  53         @mock.message.should == @return_values[1]
  54         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it twice")
  55       end
  56
  57       it "should complain when there are too many calls" do
  58         third = Object.new
  59         @mock.message.should == @return_values[0]
  60         @mock.message.should == @return_values[1]
  61         @mock.message.should == @return_values[2]
  62         @mock.message.should == @return_values[2]
  63         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it 4 times")
  64       end
  65     end
  66
  67     describe "a Mock expectation with multiple return values specifying at_least less than the number of values" do
  68       before(:each) do
  69         @mock = Mock.new("mock")
  70         @mock.should_receive(:message).at_least(:twice).with(no_args).and_return(11, 22)
  71       end
  72
  73       it "should use last return value for subsequent calls" do
  74         @mock.message.should equal(11)
  75         @mock.message.should equal(22)
  76         @mock.message.should equal(22)
  77         @mock.rspec_verify
  78       end
  79
  80       it "should fail when called less than the specified number" do
  81         @mock.message.should equal(11)
  82         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (no args) twice, but received it once")
  83       end
  84     end
  85     describe "a Mock expectation with multiple return values with a specified count larger than the number of values" do
  86       before(:each) do
  87         @mock = Mock.new("mock")
  88         @mock.should_receive(:message).exactly(3).times.and_return(11, 22)
  89       end
  90
  91       it "should use last return value for subsequent calls" do
  92         @mock.message.should equal(11)
  93         @mock.message.should equal(22)
  94         @mock.message.should equal(22)
  95         @mock.rspec_verify
  96       end
  97
  98       it "should fail when called less than the specified number" do
  99         @mock.message.should equal(11)
 100         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it once")
 101       end
 102
 103       it "should fail when called greater than the specified number" do
 104         @mock.message.should equal(11)
 105         @mock.message.should equal(22)
 106         @mock.message.should equal(22)
 107         @mock.message.should equal(22)
 108         lambda { @mock.rspec_verify }.should raise_error(MockExpectationError, "Mock 'mock' expected :message with (any args) 3 times, but received it 4 times")
 109       end
 110     end
 111   end
 112 end
 113