Class: Simmer::Specification::Assert::Assertions::Table

Inherits:
Object
  • Object
show all
Includes:
Logic
Defined in:
lib/simmer/specification/assert/assertions/table.rb

Overview

Describes an expected state of a database table.

Defined Under Namespace

Modules: Logic

Constant Summary collapse

LOGIC_METHODS = 
{
  EQUALS => ->(actual_record_set, record_set) { actual_record_set == record_set },
  INCLUDES => lambda { |actual_record_set, record_set|
    (actual_record_set & record_set) == record_set
  }
}.freeze

Constants included from Logic

Logic::EQUALS, Logic::INCLUDES

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(logic: EQUALS, name:, records: []) ⇒ Table

Returns a new instance of Table.



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# File 'lib/simmer/specification/assert/assertions/table.rb', line 35

def initialize(logic: EQUALS, name:, records: [])
  @logic      = Logic.const_get(logic.to_s.upcase.to_sym)
  @name       = name.to_s
  @record_set = Util::RecordSet.new(records)

  freeze
end

Instance Attribute Details

#logic ⇒ Object (readonly)

Returns the value of attribute logic.



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# File 'lib/simmer/specification/assert/assertions/table.rb', line 33

def logic
  @logic
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/simmer/specification/assert/assertions/table.rb', line 33

def name
  @name
end

#record_set ⇒ Object (readonly)

Returns the value of attribute record_set.



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# File 'lib/simmer/specification/assert/assertions/table.rb', line 33

def record_set
  @record_set
end

Instance Method Details

#assert(database, _output) ⇒ Object 



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# File 'lib/simmer/specification/assert/assertions/table.rb', line 43

def assert(database, _output)
  keys                = record_set.keys
  actual_records      = database.records(name, keys)
  actual_record_set   = Util::RecordSet.new(actual_records)

  return nil if LOGIC_METHODS[logic].call(actual_record_set, record_set)

  BadTableAssertion.new(name, record_set, actual_record_set)
end