This unit testing framework aims to be nicer and more flexible than existing unit testing frameworks for Fortran.

$ gem install funit

$ ./configure && make && make install

$ fu init

• creates test/ structure with fixtures/, example test suite, config file, etc.

Tests are written with special syntax around Fortran code implementing each test. The special syntax also specifies dependencies which need to be built, setup and teardown routines, etc.

test_suite suite-name
  dep "../file1.F90"
  dep "../file2.F90"
  mod a_module

  tolerance 0.00001

  setup
    ! fortran code to run before each test
  end setup

  teardown
    ! fortran code to run after each test
  end teardown

  test case1
    ...
  end test case1

  test case2
    ...
  end test case2
end test_suite

Note: dependencies must be quoted and unlike Fortran, the strings must not be continued with an ampersand (&).

• assert_true(expression[, msg])
• assert_false(expression[, msg])
• assert_equal(a, b[, msg])
• assert_not_equal(a, b[, msg])
• assert_equal_with(a, b[, tol][, msg])
• assert_array_equal(a, b[, msg])
• assert_array_equal_with(a, b[, tol][, msg])
• flunk(msg)

The array assertions should be given array variable names rather than complex expressions because their arguments are evaluated several times.

$ fu test/test_XXX.fun

Building suite-name...
Running suite-name
  test test-name        PASSED
  test name2            PASSED
  test third            FAILED

Finished in 2.3 seconds
3 tests in 1 suite, 1 failures