Module: Tst::Assertions

Included in:
Runner
Defined in:
lib/tst.rb

Overview

Assertions available in ‘tst` blocks.

Instance Method Summary collapse

Instance Method Details

#assert(value) ⇒ Object

Fails if ‘value` is `false` or `nil`. Succeeds otherwise.

Raises:



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# File 'lib/tst.rb', line 22

def assert(value)
  return if value
  raise Failure.new("Failure: Truthiness", "not false or nil", value)
end

#assert_equal(expected, actual) ⇒ Object

Fails unless it’s arguments are equal (with ‘==`).

Raises:



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# File 'lib/tst.rb', line 28

def assert_equal(expected, actual)
  return if expected == actual
  raise Failure.new("Equality Failure", expected, actual)
end

#assert_raises(expected = StandardError) ⇒ Object

Succeeds if it catches an error AND that error is a ‘kind_of?` the `expected` error. Fails otherwise.

Raises:



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# File 'lib/tst.rb', line 35

def assert_raises(expected=StandardError)
  begin
    yield
  rescue => actual
    return actual if actual.kind_of?(expected)
    raise Failure.new("Failure: Unexpected Exception", expected, actual)
  end
  raise Failure.new("Failure: No Exception", expected, "Nothing raised.")
end