Re: [PATCH] Add tests for rev-list --graph with options that simplify history

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Adam Simpkins <simpkins@xxxxxxxxxxxx> writes:

> These tests help make sure graph_is_interesting() is doing the right
> thing.
>
> Signed-off-by: Adam Simpkins <simpkins@xxxxxxxxxxxx>
> ---
>  t/t6016-rev-list-graph-simplify-history.sh |  276 ++++++++++++++++++++++++++++
>  1 files changed, 276 insertions(+), 0 deletions(-)
>  create mode 100755 t/t6016-rev-list-graph-simplify-history.sh
>
> diff --git a/t/t6016-rev-list-graph-simplify-history.sh b/t/t6016-rev-list-graph-simplify-history.sh
> new file mode 100755
> index 0000000..5ac8fc9
> --- /dev/null
> +++ b/t/t6016-rev-list-graph-simplify-history.sh
> @@ -0,0 +1,276 @@
> +#!/bin/sh
> +
> +# There's more than one "correct" way to represent the history graphically.
> +# These tests depend on the current behavior of the graphing code.  If the
> +# graphing code is ever changed to draw the output differently, these tests
> +# cases will need to be updated to know about the new layout.

An ideal solution to such a problem would be not to write the tests that
way to require _the exact layout_ of the output.

What was the bug you were trying to fix?  Was it that in a simplified
history some arcs are not connected whey they should be?

Can you test that without relying on other aspect (say, commits are marked
with '*' right now but a patch might change it to '^' for some commits) of
the output?

I am just wondering how feasible it is the problem you are trying to
solve, not demanding you to solve it.
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