Forum fuzzy testing

Cargo.toml

@@ -7,6 +7,7 @@ members = [
 	"runtime-modules/common",
 	"runtime-modules/content-working-group",
 	"runtime-modules/forum",
+	"runtime-modules/forum/fuzzer",
 	"runtime-modules/governance",
 	"runtime-modules/hiring",
 	"runtime-modules/membership",

node/src/forum_config/from_serialized.rs

@@ -47,11 +47,7 @@ pub fn create() -> ForumConfig {
         // TODO: get rid of mocks and setup valid values
         category_by_moderator: Vec::new(),
         reaction_by_post: Vec::new(),
-        poll_desc_constraint: new_validation(10, 90),
         poll_items_constraint: new_validation(1, 10),
-        user_name_constraint: new_validation(10, 90),
-        user_self_introduction_constraint: new_validation(10, 90),
-        post_footer_constraint: new_validation(10, 90),
         data_migration_done: true,
     }
 }

runtime-modules/forum/Cargo.toml

@@ -16,6 +16,11 @@ system = { package = 'srml-system', default-features = false, git = 'https://git
 balances = { package = 'srml-balances', default-features = false, git = 'https://github.com/paritytech/substrate.git', rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'}
 codec = { package = 'parity-scale-codec', version = '1.0.0', default-features = false, features = ['derive'] }
 
+arbitrary = { version = "0.3.0", optional = true, features = ["derive"] }
+
+[dependencies.substrate-forum-module-reflection]
+path = "./reflection"
+
 [dependencies.timestamp]
 default_features = false
 git = 'https://github.com/paritytech/substrate.git'
@@ -28,6 +33,12 @@ git = 'https://github.com/paritytech/substrate.git'
 package = 'sr-io'
 rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'
 
+[dependencies.primitives]
+package = 'substrate-primitives'
+git = 'https://github.com/paritytech/substrate.git'
+rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'
+#optional = true
+
 # [dependencies.old-forum]
 # default_features = false
 # git = 'https://github.com/juniuszhou/substrate-forum-module'
@@ -36,7 +47,6 @@ rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'
 
 [dev-dependencies]
 # runtime-io = { package = 'sr-io', default-features = false, git = 'https://github.com/paritytech/substrate.git', rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'}
-primitives = { package = 'substrate-primitives', git = 'https://github.com/paritytech/substrate.git', rev = 'c37bb08535c49a12320af7facfd555ce05cce2e8'}
 
 [features]
 default = ['std']
@@ -53,3 +63,5 @@ std = [
 	'timestamp/std',
 	# 'old-forum/std',
 ]
+fuzzing = []
+#fuzzing = ["primitives"]

runtime-modules/forum/README.md

@@ -0,0 +1,18 @@
+## Fuzzing
+
+### Install dependencies
+```
+# needed by honggfuzz
+sudo apt install build-essential binutils-dev libunwind-dev libblocksruntime-dev liblzma-dev
+```
+
+### Run
+Variant I - honggfuzz
+```
+HFUZZ_RUN_ARGS="-N 8 --exit_upon_crash --keep_output" cargo hfuzz run test_fuzzing
+```
+
+Variant II - libfuzzer
+```
+cargo fuzz run fuzz_target_1 -- -max_len=256 -runs=10
+```

runtime-modules/forum/fuzz/.gitignore

@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts