tests/py: Support testing JSON input and output as well

This extends nft-test.py by optional JSON testing capabilities,
activated via '-j'/'--enable-json' parameter).

JSON testing happens for all rules which are supposed to work: After a
rule has been added and the existing tests (payload, ruleset listing
output) have been performed, basically the same test is done again using
a recorded JSON equivalent and (if necessary) a recorded listing output.

The code tries to ease new test case creation overhead by
auto-generating JSON equivalent input via listing the (non-JSON) rule in
JSON format. Also, differing netlink debug and listing output are stored
in *.got files to assist in analyzing/fixing failing test cases.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 86 insertions, 0 deletions

diff --git a/tests/py/any/queue.t.json b/tests/py/any/queue.t.json
new file mode 100644
index 00000000..48e86727
--- /dev/null
+++ b/tests/py/any/queue.t.json
@@ -0,0 +1,86 @@
+# queue
+[
+    {
+        "queue": null
+    }
+]
+
+# queue num 2
+[
+    {
+        "queue": {
+            "num": 2
+        }
+    }
+]
+
+# queue num 65535
+[
+    {
+        "queue": {
+            "num": 65535
+        }
+    }
+]
+
+# queue num 2-3
+[
+    {
+        "queue": {
+            "num": {
+                "range": [ 2, 3 ]
+            }
+        }
+    }
+]
+
+# queue num 1-65535
+[
+    {
+        "queue": {
+            "num": {
+                "range": [ 1, 65535 ]
+            }
+        }
+    }
+]
+
+# queue num 4-5 fanout bypass
+[
+    {
+        "queue": {
+            "flags": [
+                "bypass",
+                "fanout"
+            ],
+            "num": {
+                "range": [ 4, 5 ]
+            }
+        }
+    }
+]
+
+# queue num 4-5 fanout
+[
+    {
+        "queue": {
+            "flags": "fanout",
+            "num": {
+                "range": [ 4, 5 ]
+            }
+        }
+    }
+]
+
+# queue num 4-5 bypass
+[
+    {
+        "queue": {
+            "flags": "bypass",
+            "num": {
+                "range": [ 4, 5 ]
+            }
+        }
+    }
+]
+