Class: Eg::Sqrt

Inherits:
Fit::ColumnFixture show all
Defined in:
lib/eg/sqrt.rb

Constant Summary

Constants inherited from Fit::Fixture

Fit::Fixture::GRAY, Fit::Fixture::GREEN, Fit::Fixture::RED, Fit::Fixture::YELLOW

Instance Attribute Summary collapse

Attributes inherited from Fit::Fixture

#args, #counts, #listener, #summary

Instance Method Summary collapse

Methods inherited from Fit::ColumnFixture

#check, #do_cell, #do_row, #do_rows, #execute, #reset

Methods inherited from Fit::Fixture

camel, #check, #do_cell, #do_cells, #do_row, #do_rows, #do_table, #do_tables, #error, escape, #exception, #find_class, #fixture_name, #get_args_for_table, #get_linked_fixture_with_args, gray, #ignore, #info, #initialize, #interpret_following_tables, #interpret_tables, label, metadata, #parse, #right, #total_errors, #totals, #wrong

Constructor Details

This class inherits a constructor from Fit::Fixture

Instance Attribute Details

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/eg/sqrt.rb', line 9

def value
  @value
end

Instance Method Details

#sqrt ⇒ Object 



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# File 'lib/eg/sqrt.rb', line 10

def sqrt
  # But Math.sqrt already raise an error if its parameter is less than zero...
  # and in fact this guard clause is present because the java.lang.Math method
  # for sqare radix would return NaN if its argument is negative.
  raise "negative sqrt" if @value < 0
  Math.sqrt @value
end