tests/float/float_parse: Allow test to run on 32-bit archs.

Printing of uPy floats can differ by the floating-point precision on
different architectures (eg 64-bit vs 32-bit x86), so it's not possible to
using printing of floats in some parts of this test.  Instead we can just
check for equivalence with what is known to be the correct answer.

tests/float/float_parse.py

@@ -17,8 +17,8 @@ print(float('.' + '9' * 70 + 'e-50') == float('1e-50'))
 
 # tiny fraction with large exponent
 print(float('.' + '0' * 60 + '1e10') == float('1e-51'))
-print(float('.' + '0' * 60 + '9e25'))
-print(float('.' + '0' * 60 + '9e40'))
+print(float('.' + '0' * 60 + '9e25') == float('9e-36'))
+print(float('.' + '0' * 60 + '9e40') == float('9e-21'))
 
 # ensure that accuracy is retained when value is close to a subnormal
 print(float('1.00000000000000000000e-37'))

tests/run-tests

@@ -324,7 +324,6 @@ def run_tests(pyb, tests, args, base_path="."):
             skip_tests.add('basics/subclass_native_init.py')# native subclassing corner cases not support
             skip_tests.add('misc/rge_sm.py')                # too large
             skip_tests.add('micropython/opt_level.py')      # don't assume line numbers are stored
-            skip_tests.add('float/float_parse.py')          # minor parsing artifacts with 32-bit floats
 
     # Some tests are known to fail on 64-bit machines
     if pyb is None and platform.architecture()[0] == '64bit':