make coverageall print the number of untested functions

[AlexGhitza]

The upcoming patch adds a line to the output of sage -coverageall, with the number of untested functions. It also fixes a plural. Here is an example of the new output:

[aghitza@cerelia sage-5.0.beta13]$ ./sage -coverageall devel/sage/sage/coding
ag_code.py: 100% (1 of 1)
binary_code.pyx: 91% (41 of 45)
code_bounds.py: 100% (17 of 17)
code_constructions.py: 96% (25 of 26)
decoder.py: 100% (3 of 3)
guava.py: 100% (3 of 3)
linear_code.py: 82% (52 of 63)
sd_codes.py: 20% (1 of 5)
source_coding/huffman.py: 100% (9 of 9)

Overall weighted coverage score:  88.1%
Total number of functions:  172
Number of untested functions:  20
We need    3 more function(s) to get to 90% coverage.
We need   11 more function(s) to get to 95% coverage.
We need   18 more function(s) to get to 99% coverage.

Apply

• trac_12896-coverageall.patch to the scripts repo

[AlexGhitza]

scripts repo

[aapitzsch]

With the exact number of untested functions we don't have to estimate scr by

scr = 0

i = y.rfind(':')
j = y.rfind('%')
scr += int(y[i+1:j]) * float(n)

and should use

scr = (total - untested) * 100

instead.

Also take note of #5859.