tests: add some more actions to test-issue-6028, describe what's being done This patch does two things: it explains what's happening in the test file so it's easier to understand, and also it adds checks that make sure something like swapping merge parents is not accidentally breaking anything. The primary reason to touch this test file was that it was broken by a change in core's merge.graft() that erroneously swapped merge parents. Since only evolve uses merge.graft() for merge commits and there aren't any tests in core for it, let's test it here. Plus, this test case is pretty simple and these additional checks don't make it too complicated.

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#!/bin/sh

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. $TESTDIR/testlib/pythonpath.sh

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# This file holds logic that is used in many tests.

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# It can be called in a test like this:

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#  $ . "$TESTDIR/testlib/topic_setup.sh"

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# Enable obsolete markers and enable extensions

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cat >> $HGRCPATH << EOF

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[experimental]

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evolution=createmarkers,exchange

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[extensions]

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rebase=

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topic=

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EOF