annotate tests/test-evolve-cycles.t @ 4843:d6e2820dac1f stable

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.

Test that evolve related algorithms don't crash on obs markers cycles

Global setup
============

  $ . $TESTDIR/testlib/common.sh
  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > interactive = true
  > [phases]
  > publish=False
  > [extensions]
  > evolve =
  > EOF

Test with cycle
===============

Test setup
----------

  $ hg init $TESTTMP/cycle
  $ cd $TESTTMP/cycle
  $ mkcommit ROOT
  $ mkcommit A
  $ mkcommit B
  $ mkcommit C
  $ hg log -G
  @  changeset:   3:a8df460dbbfe
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     C
  |
  o  changeset:   2:c473644ee0e9
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     B
  |
  o  changeset:   1:2a34000d3544
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Create a cycle
  $ hg prune -s "desc(B)" "desc(A)"
  1 changesets pruned
  2 new orphan changesets
  $ hg prune -s "desc(C)" "desc(B)"
  1 changesets pruned
  $ hg prune -s "desc(A)" "desc(C)"
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  working directory is now at 2a34000d3544
  1 changesets pruned
  $ hg log --hidden -G
  x  changeset:   3:a8df460dbbfe
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 1:2a34000d3544
  |  summary:     C
  |
  x  changeset:   2:c473644ee0e9
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 3:a8df460dbbfe
  |  summary:     B
  |
  @  changeset:   1:2a34000d3544
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 2:c473644ee0e9
  |  summary:     A
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Actual test
-----------

Check that debugobshistory never crash on a cycle

  $ hg obslog "desc(A)" --hidden
  @  2a34000d3544 (1) A
  |    rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  a8df460dbbfe (3) C
  |    rewritten(description, parent, content) as 2a34000d3544 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  c473644ee0e9 (2) B
  |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |

  $ hg obslog "desc(B)" --hidden
  @  2a34000d3544 (1) A
  |    rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  a8df460dbbfe (3) C
  |    rewritten(description, parent, content) as 2a34000d3544 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  c473644ee0e9 (2) B
  |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |

  $ hg obslog "desc(C)" --hidden
  @  2a34000d3544 (1) A
  |    rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  a8df460dbbfe (3) C
  |    rewritten(description, parent, content) as 2a34000d3544 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  c473644ee0e9 (2) B
  |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |

Check that all option don't crash on a cycle either

  $ hg obslog "desc(C)" --hidden --all
  @  2a34000d3544 (1) A
  |    rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  a8df460dbbfe (3) C
  |    rewritten(description, parent, content) as 2a34000d3544 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  c473644ee0e9 (2) B
  |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |

Test with multiple cyles
========================

Test setup
----------

  $ hg init $TESTTMP/multiple-cycle
  $ cd $TESTTMP/multiple-cycle
  $ mkcommit ROOT
  $ mkcommit A
  $ mkcommit B
  $ mkcommit C
  $ mkcommit D
  $ mkcommit E
  $ mkcommit F
  $ hg log -G
  @  changeset:   6:d9f908fde1a1
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     F
  |
  o  changeset:   5:0da815c333f6
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     E
  |
  o  changeset:   4:868d2e0eb19c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     D
  |
  o  changeset:   3:a8df460dbbfe
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     C
  |
  o  changeset:   2:c473644ee0e9
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     B
  |
  o  changeset:   1:2a34000d3544
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Create a first cycle
  $ hg prune -s "desc(B)" "desc(A)"
  1 changesets pruned
  5 new orphan changesets
  $ hg prune -s "desc(C)" "desc(B)"
  1 changesets pruned
  $ hg prune --split -s "desc(A)" -s "desc(D)" "desc(C)"
  1 changesets pruned
And create a second one
  $ hg prune -s "desc(E)" "desc(D)"
  1 changesets pruned
  $ hg prune -s "desc(F)" "desc(E)"
  1 changesets pruned
  $ hg prune -s "desc(D)" "desc(F)"
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  working directory is now at 868d2e0eb19c
  1 changesets pruned
  $ hg log --hidden -G
  x  changeset:   6:d9f908fde1a1
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 4:868d2e0eb19c
  |  summary:     F
  |
  x  changeset:   5:0da815c333f6
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 6:d9f908fde1a1
  |  summary:     E
  |
  @  changeset:   4:868d2e0eb19c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 5:0da815c333f6
  |  summary:     D
  |
  x  changeset:   3:a8df460dbbfe
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    split using prune as 1:2a34000d3544, 4:868d2e0eb19c
  |  summary:     C
  |
  x  changeset:   2:c473644ee0e9
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 3:a8df460dbbfe
  |  summary:     B
  |
  x  changeset:   1:2a34000d3544
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    rewritten using prune as 2:c473644ee0e9
  |  summary:     A
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Actual test
-----------

Check that debugobshistory never crash on a cycle

  $ hg obslog "desc(D)" --hidden
  x  0da815c333f6 (5) E
  |    rewritten(description, parent, content) as d9f908fde1a1 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  @    868d2e0eb19c (4) D
  |\     rewritten(description, parent, content) as 0da815c333f6 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  | x  d9f908fde1a1 (6) F
  | |    rewritten(description, parent, content) as 868d2e0eb19c using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  +---x  2a34000d3544 (1) A
  | |      rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  x |  a8df460dbbfe (3) C
  | |    rewritten(description, parent, content) as 2a34000d3544, 868d2e0eb19c using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  x |  c473644ee0e9 (2) B
  | |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
Check that all option don't crash either on a cycle
  $ hg obslog --all --hidden "desc(F)"
  x  0da815c333f6 (5) E
  |    rewritten(description, parent, content) as d9f908fde1a1 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  @    868d2e0eb19c (4) D
  |\     rewritten(description, parent, content) as 0da815c333f6 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  | x  d9f908fde1a1 (6) F
  | |    rewritten(description, parent, content) as 868d2e0eb19c using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  +---x  2a34000d3544 (1) A
  | |      rewritten(description, parent, content) as c473644ee0e9 using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  x |  a8df460dbbfe (3) C
  | |    rewritten(description, parent, content) as 2a34000d3544, 868d2e0eb19c using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
  x |  c473644ee0e9 (2) B
  | |    rewritten(description, parent, content) as a8df460dbbfe using prune by test (Thu Jan 01 00:00:00 1970 +0000)
  | |
Check the json output is valid in this case

  $ hg obslog "desc(D)" --hidden --no-graph -Tjson | python -m json.tool
  [
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "0da815c333f6"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "868d2e0eb19c",
          "rev": 4,
          "shortdescription": "D"
      },
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "868d2e0eb19c"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "d9f908fde1a1",
          "rev": 6,
          "shortdescription": "F"
      },
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "d9f908fde1a1"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "0da815c333f6",
          "rev": 5,
          "shortdescription": "E"
      },
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "2a34000d3544",
                      "868d2e0eb19c"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "a8df460dbbfe",
          "rev": 3,
          "shortdescription": "C"
      },
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "a8df460dbbfe"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "c473644ee0e9",
          "rev": 2,
          "shortdescription": "B"
      },
      {
          "markers": [
              {
                  "date": [
                      *, (glob)
                      0
                  ],
                  "effect": [
                      "description",
                      "parent",
                      "content"
                  ],
                  "operation": "prune",
                  "succnodes": [
                      "c473644ee0e9"
                  ],
                  "user": "test",
                  "verb": "rewritten"
              }
          ],
          "node": "2a34000d3544",
          "rev": 1,
          "shortdescription": "A"
      }
  ]