fuzzing tests

2026-08-28 11:36:17 +03:00 · 2022-06-17 12:51:22 +09:00
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--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,26 @@
+[package]
+name = "tui-textarea-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2021"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+arbitrary = "1"
+
+[dependencies.tui-textarea]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "edit"
+path = "fuzz_targets/edit.rs"
+test = false
+doc = false
--- a/fuzz/fuzz_targets/edit.rs
+++ b/fuzz/fuzz_targets/edit.rs
@@ -0,0 +1,54 @@
+#![no_main]
+
+use arbitrary::{Arbitrary, Result, Unstructured};
+use libfuzzer_sys::fuzz_target;
+use std::iter;
+use std::str;
+use tui_textarea::{Input, Key, TextArea};
+
+fn arbitrary_input(u: &mut Unstructured) -> Result<Input> {
+    let i = u8::arbitrary(u)? % 15;
+    let key = match i {
+        1 => Key::Backspace,
+        2 => Key::Enter,
+        3 => Key::Left,
+        4 => Key::Right,
+        5 => Key::Up,
+        6 => Key::Down,
+        7 => Key::Tab,
+        8 => Key::Delete,
+        9 => Key::Home,
+        10 => Key::End,
+        11 => Key::PageUp,
+        12 => Key::PageDown,
+        13 => Key::Esc,
+        14 => Key::Null,
+        _ => match char::arbitrary(u)? {
+            '\n' | '\r' => Key::Enter,
+            c => Key::Char(c),
+        },
+    };
+    Ok(Input {
+        key,
+        ctrl: bool::arbitrary(u)?,
+        alt: bool::arbitrary(u)?,
+    })
+}
+
+fn fuzz(data: &[u8]) -> Result<()> {
+    let mut u = Unstructured::new(data);
+    let inputs: Vec<_> = iter::repeat_with(|| arbitrary_input(&mut u))
+        .take(10)
+        .collect::<Result<_>>()?;
+    let text = <&str>::arbitrary(&mut u)?;
+    let mut textarea = TextArea::from(text.lines());
+    for input in inputs {
+        textarea.input(input);
+    }
+    let _ = textarea.widget();
+    Ok(())
+}
+
+fuzz_target!(|data: &[u8]| {
+    let _ = fuzz(data);
+});