python: Introduce unit tests.

Use pytest to run unit tests as part of the standard testsuite.

Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/python/ovs/tests/test_kv.py b/python/ovs/tests/test_kv.py
new file mode 100644
index 000000000..c5b66de88
--- /dev/null
+++ b/python/ovs/tests/test_kv.py
@@ -0,0 +1,76 @@
+import pytest
+
+from ovs.flow.kv import KVParser, KeyValue
+
+
+@pytest.mark.parametrize(
+    "input_data,expected",
+    [
+        (
+            (
+                "cookie=0x0, duration=147566.365s, table=0, n_packets=39, n_bytes=2574, idle_age=65534, hard_age=65534",  # noqa: E501
+                None,
+            ),
+            [
+                KeyValue("cookie", 0),
+                KeyValue("duration", "147566.365s"),
+                KeyValue("table", 0),
+                KeyValue("n_packets", 39),
+                KeyValue("n_bytes", 2574),
+                KeyValue("idle_age", 65534),
+                KeyValue("hard_age", 65534),
+            ],
+        ),
+        (
+            (
+                "load:0x4->NXM_NX_REG13[],load:0x9->NXM_NX_REG11[],load:0x8->NXM_NX_REG12[],load:0x1->OXM_OF_METADATA[],load:0x1->NXM_NX_REG14[],mod_dl_src:0a:58:a9:fe:00:02,resubmit(,8)",  # noqa: E501
+                None,
+            ),
+            [
+                KeyValue("load", "0x4->NXM_NX_REG13[]"),
+                KeyValue("load", "0x9->NXM_NX_REG11[]"),
+                KeyValue("load", "0x8->NXM_NX_REG12[]"),
+                KeyValue("load", "0x1->OXM_OF_METADATA[]"),
+                KeyValue("load", "0x1->NXM_NX_REG14[]"),
+                KeyValue("mod_dl_src", "0a:58:a9:fe:00:02"),
+                KeyValue("resubmit", ",8"),
+            ],
+        ),
+        (
+            ("l1(l2(l3(l4())))", None),
+            [KeyValue("l1", "l2(l3(l4()))")]
+        ),
+        (
+            ("l1(l2(l3(l4()))),foo:bar", None),
+            [KeyValue("l1", "l2(l3(l4()))"), KeyValue("foo", "bar")],
+        ),
+        (
+            ("enqueue:1:2,output=2", None),
+            [KeyValue("enqueue", "1:2"), KeyValue("output", 2)],
+        ),
+        (
+            ("value_to_reg(100)->someReg[10],foo:bar", None),
+            [
+                KeyValue("value_to_reg", "(100)->someReg[10]"),
+                KeyValue("foo", "bar"),
+            ],
+        ),
+    ],
+)
+def test_kv_parser(input_data, expected):
+    input_string = input_data[0]
+    decoders = input_data[1]
+    tparser = KVParser(input_string, decoders)
+    tparser.parse()
+    result = tparser.kv()
+    assert len(expected) == len(result)
+    for i in range(0, len(result)):
+        assert result[i].key == expected[i].key
+        assert result[i].value == expected[i].value
+        kpos = result[i].meta.kpos
+        kstr = result[i].meta.kstring
+        vpos = result[i].meta.vpos
+        vstr = result[i].meta.vstring
+        assert input_string[kpos : kpos + len(kstr)] == kstr
+        if vpos != -1:
+            assert input_string[vpos : vpos + len(vstr)] == vstr