Display skipped tests count

[franciszekjob]

Closes #3548

Stack

• Display skipped tests count #4150 ⬅️
• Partitioning docs #4110
• Add partitioning messages #4112
• Partitioning logic #4109
• Add partition config #4108
• Refactor tests filtering #4107
• Add --partition flag #4106

Introduced changes

Display number of skipped tests due to partitioning

Checklist

• Linked relevant issue
• Updated relevant documentation
• Added relevant tests
• Performed self-review of the code
• Added changes to CHANGELOG.md

[ddoktorski]

• I'm not sure if distinction between filtered out and skipped makes sense to me in this context
• It's definitely unintuitive in the code that skipped is used for partition, but not for the --skip flag

[franciszekjob]

• I'm not sure if distinction between filtered out and skipped makes sense to me in this context
• It's definitely unintuitive in the code that skipped is used for partition, but not for the --skip flag

We could add an explicit status "excluded"/"excluded from partition" - should be clearer. Wdyt @ddoktorski ?

[ddoktorski]

We could add an explicit status "excluded"/"excluded from partition" - should be clearer.

Can we include this information directly in the partition message instead? Something like:

Finished partition run: 1/3, executed 5 out of total 14 test.

[franciszekjob]

We could add an explicit status "excluded"/"excluded from partition" - should be clearer.

Can we include this information directly in the partition message instead? Something like:

Finished partition run: 1/3, executed 5 out of total 14 test.

Ok, makes sens. Slight adjustment:

Finished partition run: 1/3, included 5 out of total 14 tests