| Module | RR::DoubleDefinitions::DoubleDefinition::DefinitionConstructionMethods |
| In: |
lib/rr/double_definitions/double_definition.rb
|
Double#after_call creates a callback that occurs after call is called. The passed in block receives the return value of the Double being called. An Expection will be raised if no block is passed in.
mock(subject).method_name {return_value}.after_call {|return_value|}
subject.method_name # return_value
This feature is built into proxies.
mock.proxy(User).find('1') {|user| mock(user).valid? {false}}
# File lib/rr/double_definitions/double_definition.rb, line 214
214: def after_call(&after_call_proc)
215: raise ArgumentError, "after_call expects a block" unless after_call_proc
216: @after_call_proc = after_call_proc
217: self
218: end
Double#implemented_by sets the implementation of the Double. This method takes a Proc or a Method. Passing in a Method allows the Double to accept blocks.
obj = Object.new
def obj.foobar
yield(1)
end
mock(obj).method_name.implemented_by(obj.method(:foobar))
# File lib/rr/double_definitions/double_definition.rb, line 264
264: def implemented_by(implementation)
265: @implementation = implementation
266: self
267: end
# File lib/rr/double_definitions/double_definition.rb, line 250
250: def implemented_by_original_method
251: implemented_by ORIGINAL_METHOD
252: self
253: end
Double#ordered sets the Double to have an ordered expectation.
Passing in a block sets the return value.
mock(subject).method_name.ordered {return_value}
# File lib/rr/double_definitions/double_definition.rb, line 175
175: def ordered(&return_value_block)
176: raise(
177: Errors::DoubleDefinitionError,
178: "Double Definitions must have a dedicated Double to be ordered. " <<
179: "For example, using instance_of does not allow ordered to be used. " <<
180: "proxy the class's #new method instead."
181: ) unless @double
182: @ordered = true
183: space.register_ordered_double(@double)
184: install_method_callback return_value_block
185: DoubleDefinitionCreateBlankSlate.new(double_definition_create)
186: end
Double#returns accepts an argument value or a block. It will raise an ArgumentError if both are passed in.
Passing in a block causes Double to return the return value of the passed in block.
Passing in an argument causes Double to return the argument.
# File lib/rr/double_definitions/double_definition.rb, line 236
236: def returns(*args, &implementation)
237: if !args.empty? && implementation
238: raise ArgumentError, "returns cannot accept both an argument and a block"
239: end
240: if implementation
241: install_method_callback implementation
242: else
243: install_method_callback(lambda do |*lambda_args|
244: args.first
245: end)
246: end
247: self
248: end
Double#verbose sets the Double to print out each method call it receives.
Passing in a block sets the return value
# File lib/rr/double_definitions/double_definition.rb, line 223
223: def verbose(&after_call_proc)
224: @verbose = true
225: @after_call_proc = after_call_proc
226: self
227: end
# File lib/rr/double_definitions/double_definition.rb, line 269
269: def verify_method_signature
270: @verify_method_signature = true
271: self
272: end
Double#yields sets the Double to invoke a passed in block when the Double is called. An Expection will be raised if no block is passed in when the Double is called.
Passing in a block sets the return value.
mock(subject).method_name.yields(yield_arg1, yield_arg2) {return_value}
subject.method_name {|yield_arg1, yield_arg2|}
# File lib/rr/double_definitions/double_definition.rb, line 198
198: def yields(*args, &return_value_block)
199: @yields_value = args
200: install_method_callback return_value_block
201: self
202: end