Remove expect crate

2 files changed, 0 insertions, 371 deletions

diff --git a/crates/expect/Cargo.toml b/crates/expect/Cargo.toml
deleted file mode 100644
index b54d3a60e..000000000
--- a/crates/expect/Cargo.toml
+++ /dev/null
@@ -1,15 +0,0 @@
-[package]
-name = "expect"
-version = "0.0.0"
-license = "MIT OR Apache-2.0"
-authors = ["rust-analyzer developers"]
-edition = "2018"
-
-[lib]
-doctest = false
-
-[dependencies]
-once_cell = "1"
-difference = "2"
-
-stdx = { path = "../stdx" }
diff --git a/crates/expect/src/lib.rs b/crates/expect/src/lib.rs
deleted file mode 100644
index bd83895f7..000000000
--- a/crates/expect/src/lib.rs
+++ /dev/null
@@ -1,356 +0,0 @@
-//! Snapshot testing library, see
-//! https://github.com/rust-analyzer/rust-analyzer/pull/5101
-use std::{
-    collections::HashMap,
-    env, fmt, fs, mem,
-    ops::Range,
-    panic,
-    path::{Path, PathBuf},
-    sync::Mutex,
-};
-
-use difference::Changeset;
-use once_cell::sync::Lazy;
-use stdx::{lines_with_ends, trim_indent};
-
-const HELP: &str = "
-You can update all `expect![[]]` tests by running:
-
-    env UPDATE_EXPECT=1 cargo test
-
-To update a single test, place the cursor on `expect` token and use `run` feature of rust-analyzer.
-";
-
-fn update_expect() -> bool {
-    env::var("UPDATE_EXPECT").is_ok()
-}
-
-/// expect![[r#"inline snapshot"#]]
-#[macro_export]
-macro_rules! expect {
-    [[$data:literal]] => {$crate::Expect {
-        position: $crate::Position {
-            file: file!(),
-            line: line!(),
-            column: column!(),
-        },
-        data: $data,
-    }};
-    [[]] => { $crate::expect![[""]] };
-}
-
-/// expect_file!["/crates/foo/test_data/bar.html"]
-#[macro_export]
-macro_rules! expect_file {
-    [$path:expr] => {$crate::ExpectFile {
-        path: std::path::PathBuf::from($path)
-    }};
-}
-
-#[derive(Debug)]
-pub struct Expect {
-    pub position: Position,
-    pub data: &'static str,
-}
-
-#[derive(Debug)]
-pub struct ExpectFile {
-    pub path: PathBuf,
-}
-
-#[derive(Debug)]
-pub struct Position {
-    pub file: &'static str,
-    pub line: u32,
-    pub column: u32,
-}
-
-impl fmt::Display for Position {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}:{}:{}", self.file, self.line, self.column)
-    }
-}
-
-impl Expect {
-    pub fn assert_eq(&self, actual: &str) {
-        let trimmed = self.trimmed();
-        if trimmed == actual {
-            return;
-        }
-        Runtime::fail_expect(self, &trimmed, actual);
-    }
-    pub fn assert_debug_eq(&self, actual: &impl fmt::Debug) {
-        let actual = format!("{:#?}\n", actual);
-        self.assert_eq(&actual)
-    }
-
-    fn trimmed(&self) -> String {
-        if !self.data.contains('\n') {
-            return self.data.to_string();
-        }
-        trim_indent(self.data)
-    }
-
-    fn locate(&self, file: &str) -> Location {
-        let mut target_line = None;
-        let mut line_start = 0;
-        for (i, line) in lines_with_ends(file).enumerate() {
-            if i == self.position.line as usize - 1 {
-                let pat = "expect![[";
-                let offset = line.find(pat).unwrap();
-                let literal_start = line_start + offset + pat.len();
-                let indent = line.chars().take_while(|&it| it == ' ').count();
-                target_line = Some((literal_start, indent));
-                break;
-            }
-            line_start += line.len();
-        }
-        let (literal_start, line_indent) = target_line.unwrap();
-        let literal_length =
-            file[literal_start..].find("]]").expect("Couldn't find matching `]]` for `expect![[`.");
-        let literal_range = literal_start..literal_start + literal_length;
-        Location { line_indent, literal_range }
-    }
-}
-
-impl ExpectFile {
-    pub fn assert_eq(&self, actual: &str) {
-        let expected = self.read();
-        if actual == expected {
-            return;
-        }
-        Runtime::fail_file(self, &expected, actual);
-    }
-    pub fn assert_debug_eq(&self, actual: &impl fmt::Debug) {
-        let actual = format!("{:#?}\n", actual);
-        self.assert_eq(&actual)
-    }
-    fn read(&self) -> String {
-        fs::read_to_string(self.abs_path()).unwrap_or_default().replace("\r\n", "\n")
-    }
-    fn write(&self, contents: &str) {
-        fs::write(self.abs_path(), contents).unwrap()
-    }
-    fn abs_path(&self) -> PathBuf {
-        WORKSPACE_ROOT.join(&self.path)
-    }
-}
-
-#[derive(Default)]
-struct Runtime {
-    help_printed: bool,
-    per_file: HashMap<&'static str, FileRuntime>,
-}
-static RT: Lazy<Mutex<Runtime>> = Lazy::new(Default::default);
-
-impl Runtime {
-    fn fail_expect(expect: &Expect, expected: &str, actual: &str) {
-        let mut rt = RT.lock().unwrap_or_else(|poisoned| poisoned.into_inner());
-        if update_expect() {
-            println!("\x1b[1m\x1b[92mupdating\x1b[0m: {}", expect.position);
-            rt.per_file
-                .entry(expect.position.file)
-                .or_insert_with(|| FileRuntime::new(expect))
-                .update(expect, actual);
-            return;
-        }
-        rt.panic(expect.position.to_string(), expected, actual);
-    }
-
-    fn fail_file(expect: &ExpectFile, expected: &str, actual: &str) {
-        let mut rt = RT.lock().unwrap_or_else(|poisoned| poisoned.into_inner());
-        if update_expect() {
-            println!("\x1b[1m\x1b[92mupdating\x1b[0m: {}", expect.path.display());
-            expect.write(actual);
-            return;
-        }
-        rt.panic(expect.path.display().to_string(), expected, actual);
-    }
-
-    fn panic(&mut self, position: String, expected: &str, actual: &str) {
-        let print_help = !mem::replace(&mut self.help_printed, true);
-        let help = if print_help { HELP } else { "" };
-
-        let diff = Changeset::new(actual, expected, "\n");
-
-        println!(
-            "\n
-\x1b[1m\x1b[91merror\x1b[97m: expect test failed\x1b[0m
-   \x1b[1m\x1b[34m-->\x1b[0m {}
-{}
-\x1b[1mExpect\x1b[0m:
-----
-{}
-----
-
-\x1b[1mActual\x1b[0m:
-----
-{}
-----
-
-\x1b[1mDiff\x1b[0m:
-----
-{}
-----
-",
-            position, help, expected, actual, diff
-        );
-        // Use resume_unwind instead of panic!() to prevent a backtrace, which is unnecessary noise.
-        panic::resume_unwind(Box::new(()));
-    }
-}
-
-struct FileRuntime {
-    path: PathBuf,
-    original_text: String,
-    patchwork: Patchwork,
-}
-
-impl FileRuntime {
-    fn new(expect: &Expect) -> FileRuntime {
-        let path = WORKSPACE_ROOT.join(expect.position.file);
-        let original_text = fs::read_to_string(&path).unwrap();
-        let patchwork = Patchwork::new(original_text.clone());
-        FileRuntime { path, original_text, patchwork }
-    }
-    fn update(&mut self, expect: &Expect, actual: &str) {
-        let loc = expect.locate(&self.original_text);
-        let patch = format_patch(loc.line_indent.clone(), actual);
-        self.patchwork.patch(loc.literal_range, &patch);
-        fs::write(&self.path, &self.patchwork.text).unwrap()
-    }
-}
-
-#[derive(Debug)]
-struct Location {
-    line_indent: usize,
-    literal_range: Range<usize>,
-}
-
-#[derive(Debug)]
-struct Patchwork {
-    text: String,
-    indels: Vec<(Range<usize>, usize)>,
-}
-
-impl Patchwork {
-    fn new(text: String) -> Patchwork {
-        Patchwork { text, indels: Vec::new() }
-    }
-    fn patch(&mut self, mut range: Range<usize>, patch: &str) {
-        self.indels.push((range.clone(), patch.len()));
-        self.indels.sort_by_key(|(delete, _insert)| delete.start);
-
-        let (delete, insert) = self
-            .indels
-            .iter()
-            .take_while(|(delete, _)| delete.start < range.start)
-            .map(|(delete, insert)| (delete.end - delete.start, insert))
-            .fold((0usize, 0usize), |(x1, y1), (x2, y2)| (x1 + x2, y1 + y2));
-
-        for pos in &mut [&mut range.start, &mut range.end] {
-            **pos -= delete;
-            **pos += insert;
-        }
-
-        self.text.replace_range(range, &patch);
-    }
-}
-
-fn format_patch(line_indent: usize, patch: &str) -> String {
-    let mut max_hashes = 0;
-    let mut cur_hashes = 0;
-    for byte in patch.bytes() {
-        if byte != b'#' {
-            cur_hashes = 0;
-            continue;
-        }
-        cur_hashes += 1;
-        max_hashes = max_hashes.max(cur_hashes);
-    }
-    let hashes = &"#".repeat(max_hashes + 1);
-    let indent = &" ".repeat(line_indent);
-    let is_multiline = patch.contains('\n');
-
-    let mut buf = String::new();
-    buf.push('r');
-    buf.push_str(hashes);
-    buf.push('"');
-    if is_multiline {
-        buf.push('\n');
-    }
-    let mut final_newline = false;
-    for line in lines_with_ends(patch) {
-        if is_multiline && !line.trim().is_empty() {
-            buf.push_str(indent);
-            buf.push_str("    ");
-        }
-        buf.push_str(line);
-        final_newline = line.ends_with('\n');
-    }
-    if final_newline {
-        buf.push_str(indent);
-    }
-    buf.push('"');
-    buf.push_str(hashes);
-    buf
-}
-
-static WORKSPACE_ROOT: Lazy<PathBuf> = Lazy::new(|| {
-    let my_manifest =
-        env::var("CARGO_MANIFEST_DIR").unwrap_or_else(|_| env!("CARGO_MANIFEST_DIR").to_owned());
-    // Heuristic, see https://github.com/rust-lang/cargo/issues/3946
-    Path::new(&my_manifest)
-        .ancestors()
-        .filter(|it| it.join("Cargo.toml").exists())
-        .last()
-        .unwrap()
-        .to_path_buf()
-});
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_format_patch() {
-        let patch = format_patch(0, "hello\nworld\n");
-        expect![[r##"
-            r#"
-                hello
-                world
-            "#"##]]
-        .assert_eq(&patch);
-
-        let patch = format_patch(4, "single line");
-        expect![[r##"r#"single line"#"##]].assert_eq(&patch);
-    }
-
-    #[test]
-    fn test_patchwork() {
-        let mut patchwork = Patchwork::new("one two three".to_string());
-        patchwork.patch(4..7, "zwei");
-        patchwork.patch(0..3, "один");
-        patchwork.patch(8..13, "3");
-        expect![[r#"
-            Patchwork {
-                text: "один zwei 3",
-                indels: [
-                    (
-                        0..3,
-                        8,
-                    ),
-                    (
-                        4..7,
-                        4,
-                    ),
-                    (
-                        8..13,
-                        1,
-                    ),
-                ],
-            }
-        "#]]
-        .assert_debug_eq(&patchwork);
-    }
-}