1
0
зеркало из https://github.com/glebtv/tui-textarea.git synced 2026-08-28 11:36:17 +03:00

chore(fuzz): upgrade targets, fix false positives, and add invariant assertions (#11)

- Fix insert_delete target using .unwrap() causing false-positive crashes
  on arbitrary::Error (input exhaustion)
- Fix fuzz Cargo.toml referencing wrong package name (tui-textarea vs
  tui-textarea-2)
- Add invariant assertions (cursor bounds, lines non-empty, selection
  validity) to all targets
- Add 4 new fuzz targets: undo_redo, selection, wrap_render, search
- Expand existing targets with full delete/insert variant coverage,
  input_without_shortcuts, set_yank_text, set_max_histories, and clear
- Add DummyBackend::resize() for variable-width wrap rendering tests
Этот коммит содержится в:
srothgan
2026-02-19 08:44:58 +01:00
коммит произвёл GitHub
родитель 19151a4076
Коммит f169a4b18c
9 изменённых файлов: 827 добавлений и 228 удалений

Просмотреть файл

@@ -123,6 +123,14 @@ impl Backend for DummyBackend {
}
}
impl DummyBackend {
#[inline]
pub fn resize(&mut self, width: u16, height: u16) {
self.width = width;
self.height = height;
}
}
#[inline]
pub fn dummy_terminal() -> Terminal<DummyBackend> {
Terminal::new(DummyBackend::default()).unwrap()

613
fuzz/Cargo.lock сгенерированный
Просмотреть файл

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"ratatui-widgets",
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"bitflags",
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"compact_str",
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"indoc",
"itertools",
"kasuari",
"lru",
"strum",
"thiserror",
"unicode-segmentation",
"unicode-truncate",
"unicode-width",
]
[[package]]
name = "ratatui-widgets"
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dependencies = [
"bitflags",
"hashbrown",
"indoc",
"instability",
"itertools",
"lru",
"paste",
"line-clipping",
"ratatui-core",
"strum",
"time",
"unicode-segmentation",
"unicode-truncate",
"unicode-width 0.2.0",
"unicode-width",
]
[[package]]
name = "redox_syscall"
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version = "0.5.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ed2bf2547551a7053d6fdfafda3f938979645c44812fbfcda098faae3f1a362d"
dependencies = [
"bitflags",
]
[[package]]
name = "regex"
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version = "1.12.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e10754a14b9137dd7b1e3e5b0493cc9171fdd105e0ab477f51b72e7f3ac0e276"
dependencies = [
"aho-corasick",
"memchr",
@@ -375,9 +537,9 @@ dependencies = [
[[package]]
name = "regex-automata"
version = "0.4.8"
version = "0.4.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6e1dd4122fc1595e8162618945476892eefca7b88c52820e74af6262213cae8f"
dependencies = [
"aho-corasick",
"memchr",
@@ -386,15 +548,24 @@ dependencies = [
[[package]]
name = "regex-syntax"
version = "0.8.5"
version = "0.8.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
checksum = "a96887878f22d7bad8a3b6dc5b7440e0ada9a245242924394987b21cf2210a4c"
[[package]]
name = "rustc_version"
version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
dependencies = [
"semver",
]
[[package]]
name = "rustix"
version = "0.38.37"
version = "1.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
checksum = "146c9e247ccc180c1f61615433868c99f3de3ae256a30a43b49f67c2d9171f34"
dependencies = [
"bitflags",
"errno",
@@ -405,15 +576,15 @@ dependencies = [
[[package]]
name = "rustversion"
version = "1.0.18"
version = "1.0.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
[[package]]
name = "ryu"
version = "1.0.18"
version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
checksum = "9774ba4a74de5f7b1c1451ed6cd5285a32eddb5cccb8cc655a4e50009e06477f"
[[package]]
name = "scopeguard"
@@ -421,6 +592,12 @@ version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
[[package]]
name = "semver"
version = "1.0.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d767eb0aabc880b29956c35734170f26ed551a859dbd361d140cdbeca61ab1e2"
[[package]]
name = "shlex"
version = "1.3.0"
@@ -429,9 +606,9 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
[[package]]
name = "signal-hook"
version = "0.3.17"
version = "0.3.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8621587d4798caf8eb44879d42e56b9a93ea5dcd315a6487c357130095b62801"
checksum = "d881a16cf4426aa584979d30bd82cb33429027e42122b169753d6ef1085ed6e2"
dependencies = [
"libc",
"signal-hook-registry",
@@ -439,9 +616,9 @@ dependencies = [
[[package]]
name = "signal-hook-mio"
version = "0.2.4"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34db1a06d485c9142248b7a054f034b349b212551f3dfd19c94d45a754a217cd"
checksum = "b75a19a7a740b25bc7944bdee6172368f988763b744e3d4dfe753f6b4ece40cc"
dependencies = [
"libc",
"mio",
@@ -450,18 +627,19 @@ dependencies = [
[[package]]
name = "signal-hook-registry"
version = "1.4.2"
version = "1.4.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
dependencies = [
"errno",
"libc",
]
[[package]]
name = "smallvec"
version = "1.13.2"
version = "1.15.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
[[package]]
name = "static_assertions"
@@ -470,32 +648,37 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]]
name = "strum"
version = "0.26.3"
name = "strsim"
version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
[[package]]
name = "strum"
version = "0.27.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "af23d6f6c1a224baef9d3f61e287d2761385a5b88fdab4eb4c6f11aeb54c4bcf"
dependencies = [
"strum_macros",
]
[[package]]
name = "strum_macros"
version = "0.26.4"
version = "0.27.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
checksum = "7695ce3845ea4b33927c055a39dc438a45b059f7c1b3d91d38d10355fb8cbca7"
dependencies = [
"heck",
"proc-macro2",
"quote",
"rustversion",
"syn",
]
[[package]]
name = "syn"
version = "2.0.82"
version = "2.0.116"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "83540f837a8afc019423a8edb95b52a8effe46957ee402287f4292fae35be021"
checksum = "3df424c70518695237746f84cede799c9c58fcb37450d7b23716568cc8bc69cb"
dependencies = [
"proc-macro2",
"quote",
@@ -503,14 +686,55 @@ dependencies = [
]
[[package]]
name = "tui-textarea"
version = "0.6.1"
name = "thiserror"
version = "2.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
dependencies = [
"thiserror-impl",
]
[[package]]
name = "thiserror-impl"
version = "2.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "time"
version = "0.3.47"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "743bd48c283afc0388f9b8827b976905fb217ad9e647fae3a379a9283c4def2c"
dependencies = [
"deranged",
"num-conv",
"powerfmt",
"time-core",
]
[[package]]
name = "time-core"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7694e1cfe791f8d31026952abf09c69ca6f6fa4e1a1229e18988f06a04a12dca"
[[package]]
name = "tui-textarea-2"
version = "0.9.1"
dependencies = [
"arbitrary",
"crossterm",
"ratatui",
"portable-atomic",
"ratatui-core",
"ratatui-widgets",
"regex",
"unicode-width 0.2.0",
"unicode-segmentation",
"unicode-width",
]
[[package]]
@@ -518,7 +742,7 @@ name = "tui-textarea-bench"
version = "0.0.0"
dependencies = [
"ratatui",
"tui-textarea",
"tui-textarea-2",
]
[[package]]
@@ -527,15 +751,15 @@ version = "0.0.0"
dependencies = [
"arbitrary",
"libfuzzer-sys",
"tui-textarea",
"tui-textarea-2",
"tui-textarea-bench",
]
[[package]]
name = "unicode-ident"
version = "1.0.13"
version = "1.0.24"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
[[package]]
name = "unicode-segmentation"
@@ -545,32 +769,35 @@ checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
[[package]]
name = "unicode-truncate"
version = "1.1.0"
version = "2.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b3644627a5af5fa321c95b9b235a72fd24cd29c648c2c379431e6628655627bf"
checksum = "16b380a1238663e5f8a691f9039c73e1cdae598a30e9855f541d29b08b53e9a5"
dependencies = [
"itertools",
"unicode-segmentation",
"unicode-width 0.1.14",
"unicode-width",
]
[[package]]
name = "unicode-width"
version = "0.1.14"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
[[package]]
name = "unicode-width"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
[[package]]
name = "wasi"
version = "0.11.0+wasi-snapshot-preview1"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
[[package]]
name = "wasip2"
version = "1.0.2+wasi-0.2.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9517f9239f02c069db75e65f174b3da828fe5f5b945c4dd26bd25d89c03ebcf5"
dependencies = [
"wit-bindgen",
]
[[package]]
name = "winapi"
@@ -594,75 +821,23 @@ version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
name = "windows-link"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
[[package]]
name = "windows-sys"
version = "0.52.0"
version = "0.61.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
dependencies = [
"windows-targets",
"windows-link",
]
[[package]]
name = "windows-targets"
version = "0.52.6"
name = "wit-bindgen"
version = "0.51.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
dependencies = [
"windows_aarch64_gnullvm",
"windows_aarch64_msvc",
"windows_i686_gnu",
"windows_i686_gnullvm",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
"windows_x86_64_msvc",
]
[[package]]
name = "windows_aarch64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "windows_i686_gnu"
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[[package]]
name = "windows_x86_64_gnu"
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[[package]]
name = "windows_x86_64_gnullvm"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
[[package]]
name = "windows_x86_64_msvc"
version = "0.52.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"

Просмотреть файл

@@ -11,7 +11,7 @@ cargo-fuzz = true
[dependencies]
libfuzzer-sys = "0.4"
arbitrary = { version = "1", features = ["derive"] }
tui-textarea = { path = "..", features = ["search", "arbitrary"] }
tui-textarea = { package = "tui-textarea-2", path = "..", features = ["search", "arbitrary"] }
tui-textarea-bench = { path = "../bench" }
# Prevent this from interfering with workspaces
@@ -29,3 +29,27 @@ name = "insert_delete"
path = "fuzz_targets/insert_delete.rs"
test = false
doc = false
[[bin]]
name = "undo_redo"
path = "fuzz_targets/undo_redo.rs"
test = false
doc = false
[[bin]]
name = "selection"
path = "fuzz_targets/selection.rs"
test = false
doc = false
[[bin]]
name = "wrap_render"
path = "fuzz_targets/wrap_render.rs"
test = false
doc = false
[[bin]]
name = "search"
path = "fuzz_targets/search.rs"
test = false
doc = false

Просмотреть файл

@@ -9,6 +9,7 @@ use tui_textarea_bench::{dummy_terminal, TerminalExt};
#[derive(Arbitrary)]
enum RandomInput {
Input(Input),
InputWithoutShortcuts(Input),
Cursor(CursorMove),
}
@@ -18,11 +19,30 @@ impl RandomInput {
Self::Input(input) => {
t.input(input);
}
Self::InputWithoutShortcuts(input) => {
t.input_without_shortcuts(input);
}
Self::Cursor(m) => t.move_cursor(m),
}
}
}
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut data = Unstructured::new(data);
@@ -32,6 +52,7 @@ fn fuzz(data: &[u8]) -> Result<()> {
let input = RandomInput::arbitrary(&mut data)?;
input.apply(&mut textarea);
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
Ok(())
}

Просмотреть файл

@@ -1,26 +1,93 @@
#![no_main]
use arbitrary::{Arbitrary as _, Result, Unstructured};
use arbitrary::{Arbitrary, Result, Unstructured};
use libfuzzer_sys::fuzz_target;
use tui_textarea::{CursorMove, TextArea};
use tui_textarea_bench::{dummy_terminal, TerminalExt};
#[derive(Arbitrary)]
enum Op {
Move(CursorMove),
InsertStr(String),
InsertChar(char),
InsertTab,
InsertNewline,
DeleteStr(usize),
DeleteChar,
DeleteNextChar,
DeleteWord,
DeleteNextWord,
DeleteLineByEnd,
DeleteLineByHead,
DeleteNewline,
Clear,
}
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut textarea = TextArea::default();
let mut data = Unstructured::new(data);
for i in 0..100 {
textarea.move_cursor(CursorMove::arbitrary(&mut data)?);
if i % 2 == 0 {
textarea.insert_str(String::arbitrary(&mut data)?);
} else {
textarea.delete_str(usize::arbitrary(&mut data)?);
for _ in 0..100 {
match Op::arbitrary(&mut data)? {
Op::Move(m) => textarea.move_cursor(m),
Op::InsertStr(s) => {
textarea.insert_str(s);
}
Op::InsertChar(c) => textarea.insert_char(c),
Op::InsertTab => {
textarea.insert_tab();
}
Op::InsertNewline => textarea.insert_newline(),
Op::DeleteStr(n) => {
textarea.delete_str(n);
}
Op::DeleteChar => {
textarea.delete_char();
}
Op::DeleteNextChar => {
textarea.delete_next_char();
}
Op::DeleteWord => {
textarea.delete_word();
}
Op::DeleteNextWord => {
textarea.delete_next_word();
}
Op::DeleteLineByEnd => {
textarea.delete_line_by_end();
}
Op::DeleteLineByHead => {
textarea.delete_line_by_head();
}
Op::DeleteNewline => {
textarea.delete_newline();
}
Op::Clear => {
textarea.clear();
}
}
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
Ok(())
}
fuzz_target!(|data: &[u8]| {
fuzz(data).unwrap();
let _ = fuzz(data);
});

67
fuzz/fuzz_targets/search.rs Обычный файл
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#![no_main]
use arbitrary::{Arbitrary, Result, Unstructured};
use libfuzzer_sys::fuzz_target;
use tui_textarea::{CursorMove, TextArea};
use tui_textarea_bench::{dummy_terminal, TerminalExt};
#[derive(Arbitrary)]
enum Op {
SetPattern(String),
SearchForward(bool),
SearchBack(bool),
Move(CursorMove),
InsertStr(String),
DeleteStr(usize),
}
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut data = Unstructured::new(data);
let text = <&str>::arbitrary(&mut data)?;
let mut textarea = TextArea::from(text.lines());
for _ in 0..100 {
match Op::arbitrary(&mut data)? {
Op::SetPattern(pat) => {
let _ = textarea.set_search_pattern(&pat);
}
Op::SearchForward(match_cursor) => {
textarea.search_forward(match_cursor);
}
Op::SearchBack(match_cursor) => {
textarea.search_back(match_cursor);
}
Op::Move(m) => textarea.move_cursor(m),
Op::InsertStr(s) => {
textarea.insert_str(s);
}
Op::DeleteStr(n) => {
textarea.delete_str(n);
}
}
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
Ok(())
}
fuzz_target!(|data: &[u8]| {
let _ = fuzz(data);
});

102
fuzz/fuzz_targets/selection.rs Обычный файл
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#![no_main]
use arbitrary::{Arbitrary, Result, Unstructured};
use libfuzzer_sys::fuzz_target;
use tui_textarea::{CursorMove, TextArea};
use tui_textarea_bench::{dummy_terminal, TerminalExt};
#[derive(Arbitrary)]
enum Op {
InsertStr(String),
DeleteStr(usize),
DeleteChar,
Move(CursorMove),
StartSelection,
CancelSelection,
SelectAll,
Copy,
Cut,
Paste,
SetYankText(String),
Undo,
Redo,
}
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
if let Some(((sr, sc), (er, ec))) = textarea.selection_range() {
assert!(sr < lines.len(), "selection start row {sr} out of bounds");
assert!(
sc <= lines[sr].chars().count(),
"selection start col {sc} out of bounds (line {sr} chars: {})",
lines[sr].chars().count(),
);
assert!(er < lines.len(), "selection end row {er} out of bounds");
assert!(
ec <= lines[er].chars().count(),
"selection end col {ec} out of bounds (line {er} chars: {})",
lines[er].chars().count(),
);
assert!(
(sr, sc) <= (er, ec),
"selection start ({sr},{sc}) > end ({er},{ec})",
);
}
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut data = Unstructured::new(data);
let text = <&str>::arbitrary(&mut data)?;
let mut textarea = TextArea::from(text.lines());
for _ in 0..100 {
match Op::arbitrary(&mut data)? {
Op::InsertStr(s) => {
textarea.insert_str(s);
}
Op::DeleteStr(n) => {
textarea.delete_str(n);
}
Op::DeleteChar => {
textarea.delete_char();
}
Op::Move(m) => textarea.move_cursor(m),
Op::StartSelection => textarea.start_selection(),
Op::CancelSelection => textarea.cancel_selection(),
Op::SelectAll => textarea.select_all(),
Op::Copy => textarea.copy(),
Op::Cut => {
textarea.cut();
}
Op::Paste => {
textarea.paste();
}
Op::SetYankText(s) => textarea.set_yank_text(s),
Op::Undo => {
textarea.undo();
}
Op::Redo => {
textarea.redo();
}
}
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
Ok(())
}
fuzz_target!(|data: &[u8]| {
let _ = fuzz(data);
});

80
fuzz/fuzz_targets/undo_redo.rs Обычный файл
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#![no_main]
use arbitrary::{Arbitrary, Result, Unstructured};
use libfuzzer_sys::fuzz_target;
use tui_textarea::{CursorMove, TextArea};
use tui_textarea_bench::{dummy_terminal, TerminalExt};
#[derive(Arbitrary)]
enum Op {
InsertStr(String),
InsertChar(char),
InsertNewline,
DeleteStr(usize),
DeleteChar,
DeleteNextChar,
Clear,
Move(CursorMove),
Undo,
Redo,
SetMaxHistories(u8),
}
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut data = Unstructured::new(data);
let text = <&str>::arbitrary(&mut data)?;
let mut textarea = TextArea::from(text.lines());
for _ in 0..100 {
match Op::arbitrary(&mut data)? {
Op::InsertStr(s) => {
textarea.insert_str(s);
}
Op::InsertChar(c) => textarea.insert_char(c),
Op::InsertNewline => textarea.insert_newline(),
Op::DeleteStr(n) => {
textarea.delete_str(n);
}
Op::DeleteChar => {
textarea.delete_char();
}
Op::DeleteNextChar => {
textarea.delete_next_char();
}
Op::Clear => {
textarea.clear();
}
Op::Move(m) => textarea.move_cursor(m),
Op::Undo => {
textarea.undo();
}
Op::Redo => {
textarea.redo();
}
Op::SetMaxHistories(n) => textarea.set_max_histories(n as usize),
}
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
Ok(())
}
fuzz_target!(|data: &[u8]| {
let _ = fuzz(data);
});

55
fuzz/fuzz_targets/wrap_render.rs Обычный файл
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#![no_main]
use arbitrary::{Arbitrary, Result, Unstructured};
use libfuzzer_sys::fuzz_target;
use tui_textarea::{CursorMove, TextArea, WrapMode};
use tui_textarea_bench::{dummy_terminal, TerminalExt};
fn assert_invariants(textarea: &TextArea<'_>) {
let lines = textarea.lines();
assert!(!lines.is_empty(), "lines must never be empty");
let (row, col) = textarea.cursor();
assert!(
row < lines.len(),
"cursor row {row} out of bounds (lines: {})",
lines.len()
);
assert!(
col <= lines[row].chars().count(),
"cursor col {col} out of bounds (line {row} chars: {})",
lines[row].chars().count(),
);
}
fn fuzz(data: &[u8]) -> Result<()> {
let mut term = dummy_terminal();
let mut data = Unstructured::new(data);
let text = <&str>::arbitrary(&mut data)?;
let wrap_mode = WrapMode::arbitrary(&mut data)?;
let width: u16 = *data.choose(&[1, 4, 10, 40, 80, 200])?;
term.backend_mut().resize(width, 12);
let mut textarea = TextArea::from(text.lines());
textarea.set_wrap_mode(wrap_mode);
for _ in 0..100 {
let m = CursorMove::arbitrary(&mut data)?;
textarea.move_cursor(m);
term.draw_textarea(&textarea);
assert_invariants(&textarea);
if bool::arbitrary(&mut data)? {
let s = <&str>::arbitrary(&mut data)?;
textarea.insert_str(s);
term.draw_textarea(&textarea);
assert_invariants(&textarea);
}
}
Ok(())
}
fuzz_target!(|data: &[u8]| {
let _ = fuzz(data);
});