Add two tests that document portability issues of run-records

- IO specifications are stored in platform-native conventions
- IO specifications are reported as-is

combined with the absence of any platform type record, this makes
run-records non-portable across unix/windows scopes.

Ping datalad/datalad#7512

datalad_next/patches/tests/test_run.py

@@ -1,5 +1,8 @@
+from pathlib import Path
 import pytest
 
+from datalad.local.rerun import get_run_info
+
 from datalad_next.exceptions import IncompleteResultsError
 from datalad_next.tests.utils import (
     SkipTest,
@@ -23,3 +26,79 @@ def test_substitution_config_default(existing_dataset):
     # make sure we could actually detect breakage with the check above
     with pytest.raises(IncompleteResultsError):
         ds.run('{python} -c "breakage"', result_renderer='disabled')
+
+
+def test_runrecord_portable_paths(existing_dataset):
+    ds = existing_dataset
+    dsrepo = ds.repo
+    infile = ds.pathobj / 'inputs' / 'testfile.txt'
+    outfile = ds.pathobj / 'outputs' / 'testfile.txt'
+    infile.parent.mkdir()
+    outfile.parent.mkdir()
+    infile.touch()
+    ds.save()
+    assert not outfile.exists()
+    # script copies any 'inputs' to the outputs dir
+    res = ds.run(
+        '{python} -c "'
+        'from shutil import copyfile;'
+        'from pathlib import Path;'
+        r'[copyfile(f, Path.cwd() / \'outputs\' / Path(f).name)'
+        r'  for f in \"{inputs}\".split()]'
+        '"',
+        result_renderer='disabled',
+        # we need to pass relative paths ourselves
+        # https://github.com/datalad/datalad/issues/7516
+        inputs=[str(infile.relative_to(ds.pathobj))],
+        outputs=[str(outfile.relative_to(ds.pathobj))],
+    )
+    # verify basic outcome
+    assert_result_count(res, 1, action='run', status='ok')
+    assert outfile.exists()
+
+    # branch we expect the runrecord on
+    branch = dsrepo.get_corresponding_branch() or dsrepo.get_active_branch()
+    cmsg = dsrepo.format_commit('%B', branch)
+
+    # the IOspecs are stored in POSIX conventions
+    assert r'"inputs/testfile.txt"' in cmsg
+    assert r'"outputs/testfile.txt"' in cmsg
+
+    # get_run_info() reports in platform conventions
+    msg, run_info = get_run_info(ds, cmsg)
+    assert run_info
+    for k in ('inputs', 'outputs'):
+        specs = run_info.get(k)
+        assert len(specs) > 0
+        for p in specs:
+            assert (ds.pathobj / p).exists()
+
+
+def test_runrecord_oldnative_paths(existing_dataset):
+    ds = existing_dataset
+
+    cmsg = (
+        '[DATALAD RUNCMD] /home/mih/env/datalad-dev/bin/python -c ...\n\n'
+        '=== Do not change lines below ===\n'
+        '{\n'
+        ' "chain": [],\n'
+        ' "cmd": "{python} -c \\"from shutil import copyfile;from pathlib import Path;[copyfile(f, Path.cwd() / \\\\\\"outputs\\\\\\" / Path(f).name)  for f in \\\\\\"{inputs}\\\\\\".split()]\\"",\n'
+        # use the ID of the test dataset to ensure proper association
+        f' "dsid": "{ds.id}",\n'
+        ' "exit": 0,\n'
+        ' "extra_inputs": [],\n'
+        ' "inputs": [\n'
+        # make windows path, used to be stored in escaped form
+        r'   "inputs\\testfile.txt"' '\n'
+        ' ],\n'
+        ' "outputs": [\n'
+        # make windows path, used to be stored in escaped form
+        r'   "outputs\\testfile.txt"' '\n'
+        ' ],\n'
+        ' "pwd": "."\n'
+        '}\n'
+        '^^^ Do not change lines above ^^^\n'
+    )
+    msg, run_info = get_run_info(ds, cmsg)
+    assert run_info['inputs'][0] == str(Path('inputs', 'testfile.txt'))
+    assert run_info['outputs'][0] == str(Path('outputs', 'testfile.txt'))