class RSpec::Expectations::BlockExpectationTarget
@private Validates the provided matcher to ensure it supports block expectations, in order to avoid user confusion when they use a block thinking the expectation will be on the return value of the block rather than the block itself.
Public Instance Methods
not_to(matcher, message=nil, &block)
click to toggle source
Calls superclass method
RSpec::Expectations::ExpectationTarget#not_to
# File lib/rspec/expectations/expectation_target.rb, line 90 def not_to(matcher, message=nil, &block) enforce_block_expectation(matcher) super end
Also aliased as: to_not
to(matcher, message=nil, &block)
click to toggle source
Calls superclass method
RSpec::Expectations::ExpectationTarget#to
# File lib/rspec/expectations/expectation_target.rb, line 85 def to(matcher, message=nil, &block) enforce_block_expectation(matcher) super end
Private Instance Methods
description_of(matcher)
click to toggle source
# File lib/rspec/expectations/expectation_target.rb, line 112 def description_of(matcher) matcher.description rescue NoMethodError matcher.inspect end
enforce_block_expectation(matcher)
click to toggle source
# File lib/rspec/expectations/expectation_target.rb, line 98 def enforce_block_expectation(matcher) return if supports_block_expectations?(matcher) raise ExpectationNotMetError, "You must pass an argument rather than " "a block to use the provided matcher (#{description_of matcher}), or " "the matcher must implement `supports_block_expectations?`." end
supports_block_expectations?(matcher)
click to toggle source
# File lib/rspec/expectations/expectation_target.rb, line 106 def supports_block_expectations?(matcher) matcher.supports_block_expectations? rescue NoMethodError false end