[Planner Dev] Cost computation - some test cases

[Xavier Ordoquy <xordoquy wanadoo fr>]

Here are some cost computation sample. I'll try to make them test cases
when the Python binding will be available.

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Test case 1

Resource R1: cost is 12.5 (100 per day)
Tasks T1: work is one day, R1 assigned 100%

T1:
Duration should be one day
Cost should be 100

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Test case 2

Resource R1: cost is 12.5 (100 per day)
Tasks T1: work is one day, R1 assigned 50%

T1:
Duration should be 2 days
Cost should be 100

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Test case 3

Resource R1: cost is 12.5 (100 per day)
Tasks T1: work is two day, R1 assigned 200%

T1:
Duration should be 1 days
Cost should be 200

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Test case 4

Resource R1: cost is 12.5 (100 per day)
Resource R2: cost is 12.5 (100 per day)
Tasks T1: work is two day, R1 and R2 assigned 100%

T1:
Duration should be 1 days
Cost should be 200

=================================================================
Test case 5

Resource R1: cost is 12.5 (100 per day)
Resource R2: cost is 12.5 (100 per day)
Tasks T1: work is 3 day, R1 assigned 100%, R2 assigned 50%

T1:
Duration should be 2 days
Cost should be 300

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Test case 6

Resource R1: cost is 12.5 (100 per day)
Resource R2: cost is 25 (100 per day)
Tasks T1: work is 3 day, R1 assigned 100%, R2 assigned 50%

T1:
Duration should be 2 days
Cost should be 400