# Assert logs are equal.
	fun assert_equals do
		var diff = actual.diff(expected)

		assert equals: diff.length <= 0 else
			sys.stderr.write("\n")
			sys.stderr.write("# {actual.term_deletion}< Actual{actual.term_default}\n")
			sys.stderr.write("# {actual.term_insertion}> Expected{actual.term_default}\n")
			sys.stderr.write(diff)
			sys.stderr.write("\n")
		end
	end