1 files changed, 1410 insertions, 0 deletions

diff --git a/crates/ide_assists/src/tests/generated.rs b/crates/ide_assists/src/tests/generated.rs
new file mode 100644
index 000000000..4f007aa48
--- /dev/null
+++ b/crates/ide_assists/src/tests/generated.rs
@@ -0,0 +1,1410 @@
+//! Generated file, do not edit by hand, see `xtask/src/codegen`
+
+use super::check_doc_test;
+
+#[test]
+fn doctest_add_explicit_type() {
+    check_doc_test(
+        "add_explicit_type",
+        r#####"
+fn main() {
+    let x$0 = 92;
+}
+"#####,
+        r#####"
+fn main() {
+    let x: i32 = 92;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_add_hash() {
+    check_doc_test(
+        "add_hash",
+        r#####"
+fn main() {
+    r#"Hello,$0 World!"#;
+}
+"#####,
+        r#####"
+fn main() {
+    r##"Hello, World!"##;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_add_impl_default_members() {
+    check_doc_test(
+        "add_impl_default_members",
+        r#####"
+trait Trait {
+    type X;
+    fn foo(&self);
+    fn bar(&self) {}
+}
+
+impl Trait for () {
+    type X = ();
+    fn foo(&self) {}$0
+
+}
+"#####,
+        r#####"
+trait Trait {
+    type X;
+    fn foo(&self);
+    fn bar(&self) {}
+}
+
+impl Trait for () {
+    type X = ();
+    fn foo(&self) {}
+
+    $0fn bar(&self) {}
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_add_impl_missing_members() {
+    check_doc_test(
+        "add_impl_missing_members",
+        r#####"
+trait Trait<T> {
+    type X;
+    fn foo(&self) -> T;
+    fn bar(&self) {}
+}
+
+impl Trait<u32> for () {$0
+
+}
+"#####,
+        r#####"
+trait Trait<T> {
+    type X;
+    fn foo(&self) -> T;
+    fn bar(&self) {}
+}
+
+impl Trait<u32> for () {
+    $0type X;
+
+    fn foo(&self) -> u32 {
+        todo!()
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_add_lifetime_to_type() {
+    check_doc_test(
+        "add_lifetime_to_type",
+        r#####"
+struct Point {
+    x: &$0u32,
+    y: u32,
+}
+"#####,
+        r#####"
+struct Point<'a> {
+    x: &'a u32,
+    y: u32,
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_add_turbo_fish() {
+    check_doc_test(
+        "add_turbo_fish",
+        r#####"
+fn make<T>() -> T { todo!() }
+fn main() {
+    let x = make$0();
+}
+"#####,
+        r#####"
+fn make<T>() -> T { todo!() }
+fn main() {
+    let x = make::<${0:_}>();
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_apply_demorgan() {
+    check_doc_test(
+        "apply_demorgan",
+        r#####"
+fn main() {
+    if x != 4 ||$0 y < 3.14 {}
+}
+"#####,
+        r#####"
+fn main() {
+    if !(x == 4 && !(y < 3.14)) {}
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_auto_import() {
+    check_doc_test(
+        "auto_import",
+        r#####"
+fn main() {
+    let map = HashMap$0::new();
+}
+pub mod std { pub mod collections { pub struct HashMap { } } }
+"#####,
+        r#####"
+use std::collections::HashMap;
+
+fn main() {
+    let map = HashMap::new();
+}
+pub mod std { pub mod collections { pub struct HashMap { } } }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_change_visibility() {
+    check_doc_test(
+        "change_visibility",
+        r#####"
+$0fn frobnicate() {}
+"#####,
+        r#####"
+pub(crate) fn frobnicate() {}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_convert_integer_literal() {
+    check_doc_test(
+        "convert_integer_literal",
+        r#####"
+const _: i32 = 10$0;
+"#####,
+        r#####"
+const _: i32 = 0b1010;
+"#####,
+    )
+}
+
+#[test]
+fn doctest_convert_to_guarded_return() {
+    check_doc_test(
+        "convert_to_guarded_return",
+        r#####"
+fn main() {
+    $0if cond {
+        foo();
+        bar();
+    }
+}
+"#####,
+        r#####"
+fn main() {
+    if !cond {
+        return;
+    }
+    foo();
+    bar();
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_expand_glob_import() {
+    check_doc_test(
+        "expand_glob_import",
+        r#####"
+mod foo {
+    pub struct Bar;
+    pub struct Baz;
+}
+
+use foo::*$0;
+
+fn qux(bar: Bar, baz: Baz) {}
+"#####,
+        r#####"
+mod foo {
+    pub struct Bar;
+    pub struct Baz;
+}
+
+use foo::{Baz, Bar};
+
+fn qux(bar: Bar, baz: Baz) {}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_extract_function() {
+    check_doc_test(
+        "extract_function",
+        r#####"
+fn main() {
+    let n = 1;
+    $0let m = n + 2;
+    let k = m + n;$0
+    let g = 3;
+}
+"#####,
+        r#####"
+fn main() {
+    let n = 1;
+    fun_name(n);
+    let g = 3;
+}
+
+fn $0fun_name(n: i32) {
+    let m = n + 2;
+    let k = m + n;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_extract_struct_from_enum_variant() {
+    check_doc_test(
+        "extract_struct_from_enum_variant",
+        r#####"
+enum A { $0One(u32, u32) }
+"#####,
+        r#####"
+struct One(pub u32, pub u32);
+
+enum A { One(One) }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_extract_variable() {
+    check_doc_test(
+        "extract_variable",
+        r#####"
+fn main() {
+    $0(1 + 2)$0 * 4;
+}
+"#####,
+        r#####"
+fn main() {
+    let $0var_name = (1 + 2);
+    var_name * 4;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_fill_match_arms() {
+    check_doc_test(
+        "fill_match_arms",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        $0
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        $0Action::Move { distance } => {}
+        Action::Stop => {}
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_fix_visibility() {
+    check_doc_test(
+        "fix_visibility",
+        r#####"
+mod m {
+    fn frobnicate() {}
+}
+fn main() {
+    m::frobnicate$0() {}
+}
+"#####,
+        r#####"
+mod m {
+    $0pub(crate) fn frobnicate() {}
+}
+fn main() {
+    m::frobnicate() {}
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_flip_binexpr() {
+    check_doc_test(
+        "flip_binexpr",
+        r#####"
+fn main() {
+    let _ = 90 +$0 2;
+}
+"#####,
+        r#####"
+fn main() {
+    let _ = 2 + 90;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_flip_comma() {
+    check_doc_test(
+        "flip_comma",
+        r#####"
+fn main() {
+    ((1, 2),$0 (3, 4));
+}
+"#####,
+        r#####"
+fn main() {
+    ((3, 4), (1, 2));
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_flip_trait_bound() {
+    check_doc_test(
+        "flip_trait_bound",
+        r#####"
+fn foo<T: Clone +$0 Copy>() { }
+"#####,
+        r#####"
+fn foo<T: Copy + Clone>() { }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_default_from_enum_variant() {
+    check_doc_test(
+        "generate_default_from_enum_variant",
+        r#####"
+enum Version {
+ Undefined,
+ Minor$0,
+ Major,
+}
+"#####,
+        r#####"
+enum Version {
+ Undefined,
+ Minor,
+ Major,
+}
+
+impl Default for Version {
+    fn default() -> Self {
+        Self::Minor
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_derive() {
+    check_doc_test(
+        "generate_derive",
+        r#####"
+struct Point {
+    x: u32,
+    y: u32,$0
+}
+"#####,
+        r#####"
+#[derive($0)]
+struct Point {
+    x: u32,
+    y: u32,
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_enum_as_method() {
+    check_doc_test(
+        "generate_enum_as_method",
+        r#####"
+enum Value {
+ Number(i32),
+ Text(String)$0,
+}
+"#####,
+        r#####"
+enum Value {
+ Number(i32),
+ Text(String),
+}
+
+impl Value {
+    fn as_text(&self) -> Option<&String> {
+        if let Self::Text(v) = self {
+            Some(v)
+        } else {
+            None
+        }
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_enum_is_method() {
+    check_doc_test(
+        "generate_enum_is_method",
+        r#####"
+enum Version {
+ Undefined,
+ Minor$0,
+ Major,
+}
+"#####,
+        r#####"
+enum Version {
+ Undefined,
+ Minor,
+ Major,
+}
+
+impl Version {
+    /// Returns `true` if the version is [`Minor`].
+    fn is_minor(&self) -> bool {
+        matches!(self, Self::Minor)
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_enum_try_into_method() {
+    check_doc_test(
+        "generate_enum_try_into_method",
+        r#####"
+enum Value {
+ Number(i32),
+ Text(String)$0,
+}
+"#####,
+        r#####"
+enum Value {
+ Number(i32),
+ Text(String),
+}
+
+impl Value {
+    fn try_into_text(self) -> Result<String, Self> {
+        if let Self::Text(v) = self {
+            Ok(v)
+        } else {
+            Err(self)
+        }
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_from_impl_for_enum() {
+    check_doc_test(
+        "generate_from_impl_for_enum",
+        r#####"
+enum A { $0One(u32) }
+"#####,
+        r#####"
+enum A { One(u32) }
+
+impl From<u32> for A {
+    fn from(v: u32) -> Self {
+        Self::One(v)
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_function() {
+    check_doc_test(
+        "generate_function",
+        r#####"
+struct Baz;
+fn baz() -> Baz { Baz }
+fn foo() {
+    bar$0("", baz());
+}
+
+"#####,
+        r#####"
+struct Baz;
+fn baz() -> Baz { Baz }
+fn foo() {
+    bar("", baz());
+}
+
+fn bar(arg: &str, baz: Baz) ${0:-> ()} {
+    todo!()
+}
+
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_getter() {
+    check_doc_test(
+        "generate_getter",
+        r#####"
+struct Person {
+    nam$0e: String,
+}
+"#####,
+        r#####"
+struct Person {
+    name: String,
+}
+
+impl Person {
+    /// Get a reference to the person's name.
+    fn name(&self) -> &String {
+        &self.name
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_getter_mut() {
+    check_doc_test(
+        "generate_getter_mut",
+        r#####"
+struct Person {
+    nam$0e: String,
+}
+"#####,
+        r#####"
+struct Person {
+    name: String,
+}
+
+impl Person {
+    /// Get a mutable reference to the person's name.
+    fn name_mut(&mut self) -> &mut String {
+        &mut self.name
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_impl() {
+    check_doc_test(
+        "generate_impl",
+        r#####"
+struct Ctx<T: Clone> {
+    data: T,$0
+}
+"#####,
+        r#####"
+struct Ctx<T: Clone> {
+    data: T,
+}
+
+impl<T: Clone> Ctx<T> {
+    $0
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_new() {
+    check_doc_test(
+        "generate_new",
+        r#####"
+struct Ctx<T: Clone> {
+     data: T,$0
+}
+"#####,
+        r#####"
+struct Ctx<T: Clone> {
+     data: T,
+}
+
+impl<T: Clone> Ctx<T> {
+    fn $0new(data: T) -> Self { Self { data } }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_generate_setter() {
+    check_doc_test(
+        "generate_setter",
+        r#####"
+struct Person {
+    nam$0e: String,
+}
+"#####,
+        r#####"
+struct Person {
+    name: String,
+}
+
+impl Person {
+    /// Set the person's name.
+    fn set_name(&mut self, name: String) {
+        self.name = name;
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_infer_function_return_type() {
+    check_doc_test(
+        "infer_function_return_type",
+        r#####"
+fn foo() { 4$02i32 }
+"#####,
+        r#####"
+fn foo() -> i32 { 42i32 }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_inline_function() {
+    check_doc_test(
+        "inline_function",
+        r#####"
+fn add(a: u32, b: u32) -> u32 { a + b }
+fn main() {
+    let x = add$0(1, 2);
+}
+"#####,
+        r#####"
+fn add(a: u32, b: u32) -> u32 { a + b }
+fn main() {
+    let x = {
+        let a = 1;
+        let b = 2;
+        a + b
+    };
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_inline_local_variable() {
+    check_doc_test(
+        "inline_local_variable",
+        r#####"
+fn main() {
+    let x$0 = 1 + 2;
+    x * 4;
+}
+"#####,
+        r#####"
+fn main() {
+    (1 + 2) * 4;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_introduce_named_lifetime() {
+    check_doc_test(
+        "introduce_named_lifetime",
+        r#####"
+impl Cursor<'_$0> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+"#####,
+        r#####"
+impl<'a> Cursor<'a> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_invert_if() {
+    check_doc_test(
+        "invert_if",
+        r#####"
+fn main() {
+    if$0 !y { A } else { B }
+}
+"#####,
+        r#####"
+fn main() {
+    if y { B } else { A }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_make_raw_string() {
+    check_doc_test(
+        "make_raw_string",
+        r#####"
+fn main() {
+    "Hello,$0 World!";
+}
+"#####,
+        r#####"
+fn main() {
+    r#"Hello, World!"#;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_make_usual_string() {
+    check_doc_test(
+        "make_usual_string",
+        r#####"
+fn main() {
+    r#"Hello,$0 "World!""#;
+}
+"#####,
+        r#####"
+fn main() {
+    "Hello, \"World!\"";
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_merge_imports() {
+    check_doc_test(
+        "merge_imports",
+        r#####"
+use std::$0fmt::Formatter;
+use std::io;
+"#####,
+        r#####"
+use std::{fmt::Formatter, io};
+"#####,
+    )
+}
+
+#[test]
+fn doctest_merge_match_arms() {
+    check_doc_test(
+        "merge_match_arms",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        $0Action::Move(..) => foo(),
+        Action::Stop => foo(),
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move(..) | Action::Stop => foo(),
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_move_arm_cond_to_match_guard() {
+    check_doc_test(
+        "move_arm_cond_to_match_guard",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } => $0if distance > 10 { foo() },
+        _ => (),
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } if distance > 10 => foo(),
+        _ => (),
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_move_bounds_to_where_clause() {
+    check_doc_test(
+        "move_bounds_to_where_clause",
+        r#####"
+fn apply<T, U, $0F: FnOnce(T) -> U>(f: F, x: T) -> U {
+    f(x)
+}
+"#####,
+        r#####"
+fn apply<T, U, F>(f: F, x: T) -> U where F: FnOnce(T) -> U {
+    f(x)
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_move_guard_to_arm_body() {
+    check_doc_test(
+        "move_guard_to_arm_body",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } $0if distance > 10 => foo(),
+        _ => (),
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } => if distance > 10 {
+            foo()
+        },
+        _ => (),
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_move_module_to_file() {
+    check_doc_test(
+        "move_module_to_file",
+        r#####"
+mod $0foo {
+    fn t() {}
+}
+"#####,
+        r#####"
+mod foo;
+"#####,
+    )
+}
+
+#[test]
+fn doctest_pull_assignment_up() {
+    check_doc_test(
+        "pull_assignment_up",
+        r#####"
+fn main() {
+    let mut foo = 6;
+
+    if true {
+        $0foo = 5;
+    } else {
+        foo = 4;
+    }
+}
+"#####,
+        r#####"
+fn main() {
+    let mut foo = 6;
+
+    foo = if true {
+        5
+    } else {
+        4
+    };
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_qualify_path() {
+    check_doc_test(
+        "qualify_path",
+        r#####"
+fn main() {
+    let map = HashMap$0::new();
+}
+pub mod std { pub mod collections { pub struct HashMap { } } }
+"#####,
+        r#####"
+fn main() {
+    let map = std::collections::HashMap::new();
+}
+pub mod std { pub mod collections { pub struct HashMap { } } }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_remove_dbg() {
+    check_doc_test(
+        "remove_dbg",
+        r#####"
+fn main() {
+    $0dbg!(92);
+}
+"#####,
+        r#####"
+fn main() {
+    92;
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_remove_hash() {
+    check_doc_test(
+        "remove_hash",
+        r#####"
+fn main() {
+    r#"Hello,$0 World!"#;
+}
+"#####,
+        r#####"
+fn main() {
+    r"Hello, World!";
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_remove_mut() {
+    check_doc_test(
+        "remove_mut",
+        r#####"
+impl Walrus {
+    fn feed(&mut$0 self, amount: u32) {}
+}
+"#####,
+        r#####"
+impl Walrus {
+    fn feed(&self, amount: u32) {}
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_remove_unused_param() {
+    check_doc_test(
+        "remove_unused_param",
+        r#####"
+fn frobnicate(x: i32$0) {}
+
+fn main() {
+    frobnicate(92);
+}
+"#####,
+        r#####"
+fn frobnicate() {}
+
+fn main() {
+    frobnicate();
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_reorder_fields() {
+    check_doc_test(
+        "reorder_fields",
+        r#####"
+struct Foo {foo: i32, bar: i32};
+const test: Foo = $0Foo {bar: 0, foo: 1}
+"#####,
+        r#####"
+struct Foo {foo: i32, bar: i32};
+const test: Foo = Foo {foo: 1, bar: 0}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_reorder_impl() {
+    check_doc_test(
+        "reorder_impl",
+        r#####"
+trait Foo {
+    fn a() {}
+    fn b() {}
+    fn c() {}
+}
+
+struct Bar;
+$0impl Foo for Bar {
+    fn b() {}
+    fn c() {}
+    fn a() {}
+}
+"#####,
+        r#####"
+trait Foo {
+    fn a() {}
+    fn b() {}
+    fn c() {}
+}
+
+struct Bar;
+impl Foo for Bar {
+    fn a() {}
+    fn b() {}
+    fn c() {}
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_derive_with_manual_impl() {
+    check_doc_test(
+        "replace_derive_with_manual_impl",
+        r#####"
+trait Debug { fn fmt(&self, f: &mut Formatter) -> Result<()>; }
+#[derive(Deb$0ug, Display)]
+struct S;
+"#####,
+        r#####"
+trait Debug { fn fmt(&self, f: &mut Formatter) -> Result<()>; }
+#[derive(Display)]
+struct S;
+
+impl Debug for S {
+    fn fmt(&self, f: &mut Formatter) -> Result<()> {
+        ${0:todo!()}
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_for_loop_with_for_each() {
+    check_doc_test(
+        "replace_for_loop_with_for_each",
+        r#####"
+fn main() {
+    let x = vec![1, 2, 3];
+    for$0 v in x {
+        let y = v * 2;
+    }
+}
+"#####,
+        r#####"
+fn main() {
+    let x = vec![1, 2, 3];
+    x.into_iter().for_each(|v| {
+        let y = v * 2;
+    });
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_if_let_with_match() {
+    check_doc_test(
+        "replace_if_let_with_match",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    $0if let Action::Move { distance } = action {
+        foo(distance)
+    } else {
+        bar()
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    match action {
+        Action::Move { distance } => foo(distance),
+        _ => bar(),
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_impl_trait_with_generic() {
+    check_doc_test(
+        "replace_impl_trait_with_generic",
+        r#####"
+fn foo(bar: $0impl Bar) {}
+"#####,
+        r#####"
+fn foo<B: Bar>(bar: B) {}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_let_with_if_let() {
+    check_doc_test(
+        "replace_let_with_if_let",
+        r#####"
+enum Option<T> { Some(T), None }
+
+fn main(action: Action) {
+    $0let x = compute();
+}
+
+fn compute() -> Option<i32> { None }
+"#####,
+        r#####"
+enum Option<T> { Some(T), None }
+
+fn main(action: Action) {
+    if let Some(x) = compute() {
+    }
+}
+
+fn compute() -> Option<i32> { None }
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_match_with_if_let() {
+    check_doc_test(
+        "replace_match_with_if_let",
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    $0match action {
+        Action::Move { distance } => foo(distance),
+        _ => bar(),
+    }
+}
+"#####,
+        r#####"
+enum Action { Move { distance: u32 }, Stop }
+
+fn handle(action: Action) {
+    if let Action::Move { distance } = action {
+        foo(distance)
+    } else {
+        bar()
+    }
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_qualified_name_with_use() {
+    check_doc_test(
+        "replace_qualified_name_with_use",
+        r#####"
+fn process(map: std::collections::$0HashMap<String, String>) {}
+"#####,
+        r#####"
+use std::collections::HashMap;
+
+fn process(map: HashMap<String, String>) {}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_string_with_char() {
+    check_doc_test(
+        "replace_string_with_char",
+        r#####"
+fn main() {
+    find("{$0");
+}
+"#####,
+        r#####"
+fn main() {
+    find('{');
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_replace_unwrap_with_match() {
+    check_doc_test(
+        "replace_unwrap_with_match",
+        r#####"
+enum Result<T, E> { Ok(T), Err(E) }
+fn main() {
+    let x: Result<i32, i32> = Result::Ok(92);
+    let y = x.$0unwrap();
+}
+"#####,
+        r#####"
+enum Result<T, E> { Ok(T), Err(E) }
+fn main() {
+    let x: Result<i32, i32> = Result::Ok(92);
+    let y = match x {
+        Ok(a) => a,
+        $0_ => unreachable!(),
+    };
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_split_import() {
+    check_doc_test(
+        "split_import",
+        r#####"
+use std::$0collections::HashMap;
+"#####,
+        r#####"
+use std::{collections::HashMap};
+"#####,
+    )
+}
+
+#[test]
+fn doctest_toggle_ignore() {
+    check_doc_test(
+        "toggle_ignore",
+        r#####"
+$0#[test]
+fn arithmetics {
+    assert_eq!(2 + 2, 5);
+}
+"#####,
+        r#####"
+#[test]
+#[ignore]
+fn arithmetics {
+    assert_eq!(2 + 2, 5);
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_unmerge_use() {
+    check_doc_test(
+        "unmerge_use",
+        r#####"
+use std::fmt::{Debug, Display$0};
+"#####,
+        r#####"
+use std::fmt::{Debug};
+use std::fmt::Display;
+"#####,
+    )
+}
+
+#[test]
+fn doctest_unwrap_block() {
+    check_doc_test(
+        "unwrap_block",
+        r#####"
+fn foo() {
+    if true {$0
+        println!("foo");
+    }
+}
+"#####,
+        r#####"
+fn foo() {
+    println!("foo");
+}
+"#####,
+    )
+}
+
+#[test]
+fn doctest_wrap_return_type_in_result() {
+    check_doc_test(
+        "wrap_return_type_in_result",
+        r#####"
+fn foo() -> i32$0 { 42i32 }
+"#####,
+        r#####"
+fn foo() -> Result<i32, ${0:_}> { Ok(42i32) }
+"#####,
+    )
+}