2.13.1: generate fixture/meta in conda tests (#1143)

* 2.13.1: generate fixture/meta in conda tests

Following the pattern from #824, this generates the
fixture test if it does not exist so that tests will
pass on conda-forge.

see: conda-forge/zarr-feedstock#65

* Fix rst link

* Fix rst link again

* Add pragma: no cover

Author: joshmoore

docs/release.rst

@@ -10,16 +10,24 @@ Release notes
 
     Unreleased
     ----------
+..
+    # .. warning::
+    #    Pre-release! Use :command:`pip install --pre zarr` to evaluate this release.
+
+.. _release_2.13.1:
+
+2.13.1
+------
+
+* Fix test failure on conda-forge builds.
+  By :user:`Josh Moore <joshmoore>`; see
+  `zarr-feedstock#65 <https://github.com/conda-forge/zarr-feedstock/pull/65>`_.
 
 .. _release_2.13.0:
 
 2.13.0
 ------
 
-..
-    # .. warning::
-    #    Pre-release! Use :command:`pip install --pre zarr` to evaluate this release.
-
 Major changes
 ~~~~~~~~~~~~~
 

fixture/meta/.zarray

@@ -20,4 +20,4 @@
         2
     ],
     "zarr_format": 2
-}
+}

zarr/tests/test_storage.py

@@ -2563,5 +2563,11 @@ def test_normalize_store_arg(tmpdir):
 
 def test_meta_prefix_6853():
 
+    meta = pathlib.Path(zarr.__file__).resolve().parent.parent / "fixture" / "meta"
+    if not meta.exists():   # pragma: no cover
+        s = DirectoryStore(str(meta), dimension_separator=".")
+        a = zarr.open(store=s, mode="w", shape=(2, 2), dtype="<i8")
+        a[:] = [[1, 2], [3, 4]]
+
     fixture = group(store=DirectoryStore('fixture'))
     assert list(fixture.arrays())