Tablesorter Testing (WIP)

### This is a work-in-progress. It does not yet comprehensively test all sorting methods. The following are on the to do list:

- Core tests:
  - Test each option, event & callback
  - Sorting empty cells.
  - Sorting strings in numeric columns.
  - Internal rendering, caching & indexing utilities.
  - Update methods.
- All widgets.
- Pager plugin.
- Include natural sort unit tests?

test-head | xnum
--- | ---
test-foot | txt
ignored | x2
ignored | x3
ignored | x1
Info
ignored | x0
testB | x5
testC | x4
testA | x6

1 | 2 | 3 | 4
--- | --- | --- | ---
a | b | c | d
z | y | x | w

1 | 2 | 3 | 4
--- | --- | --- | ---
A43 | -35 | 01 | -.1
A255 | 33 | 02 | N/A #1
A33 | 2 | 03 | N/A #2
A1 | -5 | 04 | -8.4
A102 | NR | 05 | -2.2
A10 | -1 | 06 | 97.4
A02 | 1 | 07 | 23.6
A55 | 44 |  | 11.4
A87 | 04 | NR | 5.2
|  | NR |

1 | 2 | 3 | 4 | 5 | 6 | 7
--- | --- | --- | --- | --- | --- | ---
F01 | xF11 | xA21 | 01 | ZZS | WA | x
F01 | gF11 | gA21 | 02 | ZY | WB | x
F02 | zF12 | zA22 | 03 | ZZ | WA | x
F02 | bF12 | bA22 | 04 | ZZ | WB | x
F02 | dF12 | dA23 | 05 | ZY | WA | x
F02 | fF12 | fA23 | 06 | ZX | WB | x
F02 | hF12 | hA23 | 07 | ZX | WA | x
F02 | aF13 | aA23 | 08 | ZZ | WB | x
F03 | cF13 | cA24 | 09 | ZZ | WA | x
F03 | eF13 | eA24 | 10 | ZZ | WB | x

1

Index | Sort All Columns
--- | ---
Product ID | Numeric | Animals | Url
G1 | 6 | a9 | 155 | L | nytimes
G1 | 2 | z1 957 K mit
G3 | 0 | a13 | 17 K | google
G2 | 8 | z9 | 10 | G | facebook
G1 | 3 | z24 67 | B | whitehouse
G4 | 7 A10 | 87 | Z | google
G3 | 9 | z12 | 0 | K nasa