added RSpec and RSpec on Rails

[rails.git] / vendor / gems / rspec-1.1.2 / lib / spec / mocks / argument_expectation.rb

diff --git a/vendor/gems/rspec-1.1.2/lib/spec/mocks/argument_expectation.rb b/vendor/gems/rspec-1.1.2/lib/spec/mocks/argument_expectation.rb
new file mode 100644 (file)
index 0000000..34a1d4d
--- /dev/null
+++ b/vendor/gems/rspec-1.1.2/lib/spec/mocks/argument_expectation.rb
@@ -0,0 +1,183 @@
+module Spec
+  module Mocks
+  
+    class MatcherConstraint
+      def initialize(matcher)
+        @matcher = matcher
+      end
+      
+      def matches?(value)
+        @matcher.matches?(value)
+      end
+    end
+      
+    class LiteralArgConstraint
+      def initialize(literal)
+        @literal_value = literal
+      end
+      
+      def matches?(value)
+        @literal_value == value
+      end
+    end
+    
+    class RegexpArgConstraint
+      def initialize(regexp)
+        @regexp = regexp
+      end
+      
+      def matches?(value)
+        return value =~ @regexp unless value.is_a?(Regexp)
+        value == @regexp
+      end
+    end
+    
+    class AnyArgConstraint
+      def initialize(ignore)
+      end
+      
+      def ==(other)
+        true
+      end
+      
+      # TODO - need this?
+      def matches?(value)
+        true
+      end
+    end
+    
+    class AnyArgsConstraint
+      def description
+        "any args"
+      end
+    end
+    
+    class NoArgsConstraint
+      def description
+        "no args"
+      end
+      
+      def ==(args)
+        args == []
+      end
+    end
+    
+    class NumericArgConstraint
+      def initialize(ignore)
+      end
+      
+      def matches?(value)
+        value.is_a?(Numeric)
+      end
+    end
+    
+    class BooleanArgConstraint
+      def initialize(ignore)
+      end
+      
+      def ==(value)
+        matches?(value)
+      end
+      
+      def matches?(value)
+        return true if value.is_a?(TrueClass)
+        return true if value.is_a?(FalseClass)
+        false
+      end
+    end
+    
+    class StringArgConstraint
+      def initialize(ignore)
+      end
+      
+      def matches?(value)
+        value.is_a?(String)
+      end
+    end
+    
+    class DuckTypeArgConstraint
+      def initialize(*methods_to_respond_to)
+        @methods_to_respond_to = methods_to_respond_to
+      end
+  
+      def matches?(value)
+        @methods_to_respond_to.all? { |sym| value.respond_to?(sym) }
+      end
+      
+      def description
+        "duck_type"
+      end
+    end
+
+    class ArgumentExpectation
+      attr_reader :args
+      @@constraint_classes = Hash.new { |hash, key| LiteralArgConstraint}
+      @@constraint_classes[:anything] = AnyArgConstraint
+      @@constraint_classes[:numeric] = NumericArgConstraint
+      @@constraint_classes[:boolean] = BooleanArgConstraint
+      @@constraint_classes[:string] = StringArgConstraint
+      
+      def initialize(args)
+        @args = args
+        if [:any_args] == args
+          @expected_params = nil
+          warn_deprecated(:any_args.inspect, "any_args()")
+        elsif args.length == 1 && args[0].is_a?(AnyArgsConstraint) then @expected_params = nil
+        elsif [:no_args] == args
+          @expected_params = []
+          warn_deprecated(:no_args.inspect, "no_args()")
+        elsif args.length == 1 && args[0].is_a?(NoArgsConstraint) then @expected_params = []
+        else @expected_params = process_arg_constraints(args)
+        end
+      end
+      
+      def process_arg_constraints(constraints)
+        constraints.collect do |constraint| 
+          convert_constraint(constraint)
+        end
+      end
+      
+      def warn_deprecated(deprecated_method, instead)
+        Kernel.warn "The #{deprecated_method} constraint is deprecated. Use #{instead} instead."
+      end
+      
+      def convert_constraint(constraint)
+        if [:anything, :numeric, :boolean, :string].include?(constraint)
+          case constraint
+          when :anything
+            instead = "anything()"
+          when :boolean
+            instead = "boolean()"
+          when :numeric
+            instead = "an_instance_of(Numeric)"
+          when :string
+            instead = "an_instance_of(String)"
+          end
+          warn_deprecated(constraint.inspect, instead)
+          return @@constraint_classes[constraint].new(constraint)
+        end
+        return MatcherConstraint.new(constraint) if is_matcher?(constraint)
+        return RegexpArgConstraint.new(constraint) if constraint.is_a?(Regexp)
+        return LiteralArgConstraint.new(constraint)
+      end
+      
+      def is_matcher?(obj)
+        return obj.respond_to?(:matches?) && obj.respond_to?(:description)
+      end
+      
+      def check_args(args)
+        return true if @expected_params.nil?
+        return true if @expected_params == args
+        return constraints_match?(args)
+      end
+      
+      def constraints_match?(args)
+        return false if args.length != @expected_params.length
+        @expected_params.each_index { |i| return false unless @expected_params[i].matches?(args[i]) }
+        return true
+      end
+  
+    end
+    
+  end
+end