MRG: Fix skipmer test test_manysketch_skipm2n3 now that sourmash is…

… updated (#568)

* fix skipmer test

* upd comment

* black

* break test again

* do heinous dev stuff

* fix fix comment

src/python/tests/test_sketch.py

@@ -1476,19 +1476,39 @@ def test_manysketch_skipm2n3(runtmp, capfd):
     sigs = list(idx.signatures())
     print(sigs)
 
-    assert len(sigs) == 3  # 3 dna, 3 skipmer. But sourmash can only read the DNA sigs!!
+    # add in a version check so this works under latest release AND latest
+    # dev.
+    ver = sourmash.version("sourmash")
+    major, minor, micro = map(int, ver.split(".")[:3])
+    assert major == 4
+    assert minor >= 8
+    if "dev" in ver:
+        assert len(sigs) == 6  # 3 dna, 3 skipmer.
+    else:
+        assert len(sigs) == 3  # 3 dna, 3 skipmer but not recognized yet.
+
     # check moltypes, etc!
     dna_md5sums = {
         "short": "1474578c5c46dd09da4c2df29cf86621",
         "short2": "4efeebd26644278e36b9553e018a851a",
         "short3": "f85747ac4f473c4a71c1740d009f512b",
     }
+    skip_md5sums = {
+        "short2": "ec6305f5d82e51659f3914d47fcc32ee",
+        "short": "0486fcae73545363da9cd5bfcf18d322",
+        "short3": "890557b39ae66d3177035296818de7c6",
+    }
     for sig in sigs:
         if sig.minhash.is_dna:
             assert sig.minhash.ksize == 21
             assert sig.minhash.scaled == 1
             print("DNA: ", sig.name, sig.md5sum())
             assert sig.md5sum() == dna_md5sums[sig.name]
+        elif sig.minhash.moltype == "skipm2n3":
+            print(sig.minhash.ksize, sig.minhash.scaled, sig.name, sig.md5sum())
+            assert sig.minhash.ksize == 31
+            assert sig.minhash.scaled == 30
+            assert sig.md5sum() == skip_md5sums[sig.name]
 
     # read the file with python and check sigs
     import zipfile, gzip, json