Bug introduced in 10.0 and fixed in 10.1.0
I am having a severe slowdown problem with Mathematica 10 new Testing Notebook feature (File -> New -> Testing Notebook).
Please try this simple test:
Now introduce some newlines and try again:
The second test is much slower. Now the real problem is that the slowdown increases very very fast if you add more elements to the test. These are my results:
1 -> 0.4 sec 2 -> 0.4 sec 3 -> 0.4 sec 4 -> 0.4 sec 5 -> 0.4 sec 6 -> 0.4 sec 7 -> 0.8 sec 8 -> 3.7 sec (shown above) 9 -> 22 sec 10 -> 190 sec 11 -> I don’t want to try
For long commands, the tests are much more readable by introducing some line breaks. This is why this problem matters to me.
Can you reproduce this? I am using Mathematica 10.0.2 and Windows 7.