Add simple fuzzing test

cc #26

Cargo.toml

@@ -7,6 +7,7 @@ members = [
   "integration-tests"
 ]
 exclude = [
+  "fuzzing-tests",
   "benches"
 ]
 

fuzzing-tests/.gitignore

@@ -0,0 +1 @@
+/out/

fuzzing-tests/Cargo.lock

@@ -0,0 +1,190 @@
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+# It is not intended for manual editing.
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+ "cc",
+ "clap",
+ "libc",
+ "rustc_version",
+ "xdg",
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+ "atty",
+ "bitflags",
+ "strsim",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
+]
+
+[[package]]
+name = "fuzzing-tests"
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+ "afl",
+ "sailfish",
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+ "version_check",
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+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
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fuzzing-tests/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "fuzzing-tests"
+version = "0.1.3"
+authors = ["Ryohei Machida <orcinus4627@gmail.com>"]
+edition = "2018"
+publish = false
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+afl = "0.8.0"
+sailfish = { path = "../sailfish" }

fuzzing-tests/in/escape1

@@ -0,0 +1 @@
+<a href="http://example.com/">

fuzzing-tests/in/escape2

@@ -0,0 +1,5 @@
+for row in &table {
+    for col in row {
+        println!("{}", *col);
+    }
+}

fuzzing-tests/src/main.rs

@@ -0,0 +1,15 @@
+#[macro_use]
+extern crate afl;
+
+use sailfish::runtime as sf;
+use sf::Render;
+
+fn main() {
+    fuzz!(|data: &[u8]| {
+        // HTML escaping
+        if let Ok(feed) = std::str::from_utf8(data) {
+            let mut buf = sf::Buffer::new();
+            let _ = feed.render_escaped(&mut buf);
+        }
+    });
+}