Class: RSpec::ActiveRecord::Expectations::Matchers::QueryCountMatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ QueryCountMatcher

Returns a new instance of QueryCountMatcher.



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 6

def initialize
  @collector = Collector.new
  @message_builder = MessageBuilder.new(self)

  @match_method = nil
  @quantifier   = nil
  @query_type   = nil
end

Instance Attribute Details

#collector ⇒ Object (readonly)

Returns the value of attribute collector.



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 4

def collector
  @collector
end

#comparison ⇒ Object (readonly)

Returns the value of attribute comparison.



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 4

def comparison
  @comparison
end

#quantifier ⇒ Object (readonly)

Returns the value of attribute quantifier.



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 4

def quantifier
  @quantifier
end

#query_type ⇒ Object (readonly)

Returns the value of attribute query_type.



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 4

def query_type
  @query_type
end

Instance Method Details

#actual_count ⇒ Object

helper for message builder



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 98

def actual_count
  @collector.queries_of_type(@query_type)
end

#exactly(n) ⇒ Object 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 72

def exactly(n)
  @quantifier   = n
  @comparison   = :exactly
  @match_method = -> { actual_count == @quantifier }
  self
end

#failure_message ⇒ Object 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 15

def failure_message
  @message_builder.failure_message
end

#failure_message_when_negated ⇒ Object 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 19

def failure_message_when_negated
  @message_builder.failure_message_when_negated
end

#greater_than(n) ⇒ Object Also known as: more_than 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 56

def greater_than(n)
  @quantifier   = n
  @comparison   = :greater_than
  @match_method = -> { actual_count > @quantifier }
  self
end

#greater_than_or_equal_to(n) ⇒ Object Also known as: at_least 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 64

def greater_than_or_equal_to(n)
  @quantifier   = n
  @comparison   = :greater_than_or_equal_to
  @match_method = -> { actual_count >= @quantifier }
  self
end

#less_than(n) ⇒ Object Also known as: fewer_than

QUANTIFIERS



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 40

def less_than(n)
  @quantifier   = n
  @comparison   = :less_than
  @match_method = -> { actual_count < @quantifier }
  self
end

#less_than_or_equal_to(n) ⇒ Object Also known as: at_most 



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 48

def less_than_or_equal_to(n)
  @quantifier   = n
  @comparison   = :less_than_or_equal_to
  @match_method = -> { actual_count <= @quantifier }
  self
end

#matches?(block) ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 27

def matches?(block)
  raise NoComparisonError unless @match_method
  raise NoQueryTypeError unless @collector.valid_type?(@query_type)

  block.call
  result = @match_method.call
  @collector.finalize

  result
end

#supports_block_expectations? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rspec/activerecord/expectations/matchers/query_count_matcher.rb', line 23

def supports_block_expectations?
  true
end