Module: RSpec::Matchers::BuiltIn::BaseMatcher::DefaultFailureMessages

### Home Classes Methods

### In Files

- lib/rspec/matchers/built_in/base_matcher.rb

### Methods

- ::has_default_failure_messages?
- #failure_message
- #failure_message_when_negated

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No matching classes.

# RSpec::Matchers::BuiltIn::BaseMatcher::DefaultFailureMessages

@api private Provides default implementations of failure messages, based on the `description`.

### Public Class Methods

has_default_failure_messages?(matcher) click to toggle source

@private

    # File lib/rspec/matchers/built_in/base_matcher.rb, line 169
    def self.has_default_failure_messages?(matcher)
      matcher.method(:failure_message).owner == self &&
      matcher.method(:failure_message_when_negated).owner == self
    rescue NameError
      false
    end

### Public Instance Methods

failure_message() click to toggle source

@api private Provides a good generic failure message. Based on `description`. When subclassing, if you are not satisfied with this failure message you often only need to override `description`. @return [String]

    # File lib/rspec/matchers/built_in/base_matcher.rb, line 155
    def failure_message
      "expected #{description_of @actual} to #{description}"
    end

failure_message_when_negated() click to toggle source

@api private Provides a good generic negative failure message. Based on `description`. When subclassing, if you are not satisfied with this failure message you often only need to override `description`. @return [String]

    # File lib/rspec/matchers/built_in/base_matcher.rb, line 164
    def failure_message_when_negated
      "expected #{description_of @actual} not to #{description}"
    end

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