view tests/test-grep.t @ 35190:bd8875b6473c

run-tests: mechanism to report exceptions during test execution

Sometimes when running tests you introduce a ton of exceptions.
The most extreme example of this is running Mercurial with Python 3,
which currently spews thousands of exceptions when running the test
harness.

This commit adds an opt-in feature to run-tests.py to aggregate
exceptions encountered by `hg` when running tests.

When --exceptions is used, the test harness enables the
"logexceptions" extension in the test environment. This extension
wraps the Mercurial function to handle exceptions and writes
information about the exception to a random filename in a directory
defined by the test harness via an environment variable. At the
end of the test harness, these files are parsed, aggregated, and
a list of all unique Mercurial frames triggering exceptions is
printed in order of frequency.

This feature is intended to aid Python 3 development. I've only
really tested it on Python 3. There is no shortage of improvements
that could be made. e.g. we could write a separate file containing
the exception report - maybe even an HTML report. We also don't
capture which tests demonstrate the exceptions, so there's no turnkey
way to test whether a code change made an exception disappear.
Perfect is the enemy of good. I think the current patch is useful
enough to land. Whoever uses it can send patches to imprve its
usefulness.

Differential Revision: https://phab.mercurial-scm.org/D1477

  $ hg init t
  $ cd t
  $ echo import > port
  $ hg add port
  $ hg commit -m 0 -u spam -d '0 0'
  $ echo export >> port
  $ hg commit -m 1 -u eggs -d '1 0'
  $ echo export > port
  $ echo vaportight >> port
  $ echo 'import/export' >> port
  $ hg commit -m 2 -u spam -d '2 0'
  $ echo 'import/export' >> port
  $ hg commit -m 3 -u eggs -d '3 0'
  $ head -n 3 port > port1
  $ mv port1 port
  $ hg commit -m 4 -u spam -d '4 0'

pattern error

  $ hg grep '**test**'
  grep: invalid match pattern: nothing to repeat
  [1]

simple

  $ hg grep '.*'
  port:4:export
  port:4:vaportight
  port:4:import/export
  $ hg grep port port
  port:4:export
  port:4:vaportight
  port:4:import/export

simple with color

  $ hg --config extensions.color= grep --config color.mode=ansi \
  >     --color=always port port
  \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mex\x1b[0;31;1mport\x1b[0m (esc)
  \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mva\x1b[0;31;1mport\x1b[0might (esc)
  \x1b[0;35mport\x1b[0m\x1b[0;36m:\x1b[0m\x1b[0;32m4\x1b[0m\x1b[0;36m:\x1b[0mim\x1b[0;31;1mport\x1b[0m/ex\x1b[0;31;1mport\x1b[0m (esc)

simple templated

  $ hg grep port \
  > -T '{file}:{rev}:{node|short}:{texts % "{if(matched, text|upper, text)}"}\n'
  port:4:914fa752cdea:exPORT
  port:4:914fa752cdea:vaPORTight
  port:4:914fa752cdea:imPORT/exPORT

simple JSON (no "change" field)

  $ hg grep -Tjson port
  [
   {
    "date": [4.0, 0],
    "file": "port",
    "line_number": 1,
    "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c",
    "rev": 4,
    "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "date": [4.0, 0],
    "file": "port",
    "line_number": 2,
    "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c",
    "rev": 4,
    "texts": [{"matched": false, "text": "va"}, {"matched": true, "text": "port"}, {"matched": false, "text": "ight"}],
    "user": "spam"
   },
   {
    "date": [4.0, 0],
    "file": "port",
    "line_number": 3,
    "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c",
    "rev": 4,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   }
  ]

simple JSON without matching lines

  $ hg grep -Tjson -l port
  [
   {
    "date": [4.0, 0],
    "file": "port",
    "line_number": 1,
    "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c",
    "rev": 4,
    "user": "spam"
   }
  ]

all

  $ hg grep --traceback --all -nu port port
  port:4:4:-:spam:import/export
  port:3:4:+:eggs:import/export
  port:2:1:-:spam:import
  port:2:2:-:spam:export
  port:2:1:+:spam:export
  port:2:2:+:spam:vaportight
  port:2:3:+:spam:import/export
  port:1:2:+:eggs:export
  port:0:1:+:spam:import

all JSON

  $ hg grep --all -Tjson port port
  [
   {
    "change": "-",
    "date": [4.0, 0],
    "file": "port",
    "line_number": 4,
    "node": "914fa752cdea87777ac1a8d5c858b0c736218f6c",
    "rev": 4,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "change": "+",
    "date": [3.0, 0],
    "file": "port",
    "line_number": 4,
    "node": "95040cfd017d658c536071c6290230a613c4c2a6",
    "rev": 3,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}],
    "user": "eggs"
   },
   {
    "change": "-",
    "date": [2.0, 0],
    "file": "port",
    "line_number": 1,
    "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47",
    "rev": 2,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "change": "-",
    "date": [2.0, 0],
    "file": "port",
    "line_number": 2,
    "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47",
    "rev": 2,
    "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "change": "+",
    "date": [2.0, 0],
    "file": "port",
    "line_number": 1,
    "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47",
    "rev": 2,
    "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "change": "+",
    "date": [2.0, 0],
    "file": "port",
    "line_number": 2,
    "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47",
    "rev": 2,
    "texts": [{"matched": false, "text": "va"}, {"matched": true, "text": "port"}, {"matched": false, "text": "ight"}],
    "user": "spam"
   },
   {
    "change": "+",
    "date": [2.0, 0],
    "file": "port",
    "line_number": 3,
    "node": "3b325e3481a1f07435d81dfdbfa434d9a0245b47",
    "rev": 2,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}, {"matched": false, "text": "/ex"}, {"matched": true, "text": "port"}],
    "user": "spam"
   },
   {
    "change": "+",
    "date": [1.0, 0],
    "file": "port",
    "line_number": 2,
    "node": "8b20f75c158513ff5ac80bd0e5219bfb6f0eb587",
    "rev": 1,
    "texts": [{"matched": false, "text": "ex"}, {"matched": true, "text": "port"}],
    "user": "eggs"
   },
   {
    "change": "+",
    "date": [0.0, 0],
    "file": "port",
    "line_number": 1,
    "node": "f31323c9217050ba245ee8b537c713ec2e8ab226",
    "rev": 0,
    "texts": [{"matched": false, "text": "im"}, {"matched": true, "text": "port"}],
    "user": "spam"
   }
  ]

other

  $ hg grep -l port port
  port:4
  $ hg grep import port
  port:4:import/export

  $ hg cp port port2
  $ hg commit -m 4 -u spam -d '5 0'

follow

  $ hg grep --traceback -f 'import\n\Z' port2
  port:0:import
  
  $ echo deport >> port2
  $ hg commit -m 5 -u eggs -d '6 0'
  $ hg grep -f --all -nu port port2
  port2:6:4:+:eggs:deport
  port:4:4:-:spam:import/export
  port:3:4:+:eggs:import/export
  port:2:1:-:spam:import
  port:2:2:-:spam:export
  port:2:1:+:spam:export
  port:2:2:+:spam:vaportight
  port:2:3:+:spam:import/export
  port:1:2:+:eggs:export
  port:0:1:+:spam:import

  $ hg up -q null
  $ hg grep -f port
  [1]

  $ cd ..
  $ hg init t2
  $ cd t2
  $ hg grep foobar foo
  [1]
  $ hg grep foobar
  [1]
  $ echo blue >> color
  $ echo black >> color
  $ hg add color
  $ hg ci -m 0
  $ echo orange >> color
  $ hg ci -m 1
  $ echo black > color
  $ hg ci -m 2
  $ echo orange >> color
  $ echo blue >> color
  $ hg ci -m 3
  $ hg grep orange
  color:3:orange
  $ hg grep --all orange
  color:3:+:orange
  color:2:-:orange
  color:1:+:orange

test substring match: '^' should only match at the beginning

  $ hg grep '^.' --config extensions.color= --color debug
  [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|b]lack
  [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|o]range
  [grep.filename|color][grep.sep|:][grep.rev|3][grep.sep|:][grep.match|b]lue

match in last "line" without newline

  $ $PYTHON -c 'fp = open("noeol", "wb"); fp.write("no infinite loop"); fp.close();'
  $ hg ci -Amnoeol
  adding noeol
  $ hg grep loop
  noeol:4:no infinite loop

  $ cd ..

Issue685: traceback in grep -r after rename

Got a traceback when using grep on a single
revision with renamed files.

  $ hg init issue685
  $ cd issue685
  $ echo octarine > color
  $ hg ci -Amcolor
  adding color
  $ hg rename color colour
  $ hg ci -Am rename
  $ hg grep octarine
  colour:1:octarine
  color:0:octarine

Used to crash here

  $ hg grep -r 1 octarine
  colour:1:octarine
  $ cd ..


Issue337: test that grep follows parent-child relationships instead
of just using revision numbers.

  $ hg init issue337
  $ cd issue337

  $ echo white > color
  $ hg commit -A -m "0 white"
  adding color

  $ echo red > color
  $ hg commit -A -m "1 red"

  $ hg update 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo black > color
  $ hg commit -A -m "2 black"
  created new head

  $ hg update --clean 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo blue > color
  $ hg commit -A -m "3 blue"

  $ hg grep --all red
  color:3:-:red
  color:1:+:red

  $ cd ..

  $ hg init a
  $ cd a
  $ cp "$TESTDIR/binfile.bin" .
  $ hg add binfile.bin
  $ hg ci -m 'add binfile.bin'
  $ hg grep "MaCam" --all
  binfile.bin:0:+: Binary file matches

  $ cd ..