llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-tools-extra

Author: Baranov Victor (vbvictor)

<details>
<summary>Changes</summary>

In new tests we should encourage to use these "source of truth" files if 
possible.

---

Patch is 33.76 KiB, truncated to 20.00 KiB below, full version: 
https://github.com/llvm/llvm-project/pull/183963.diff


29 Files Affected:

- (renamed) 
clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/initializer_list 
(+13-11) 
- (added) clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/memory 
(+11) 
- (modified) clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string 
(+2-3) 
- (added) clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/vector 
(+91) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/boost/Inputs/use-ranges/fake_std.h 
(+3-21) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges-pipe.cpp (+2-2) 
- (modified) clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges.cpp 
(+2-2) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/bugprone/argument-comment.cpp (+2-6) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/bugprone/dangling-handle.cpp (+5-18) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
 (+2-10) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/bugprone/unused-return-value.cpp 
(+2-9) 
- (modified) clang-tools-extra/test/clang-tidy/checkers/llvm/use-ranges.cpp 
(+2-14) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/use-ranges/fake_std.h
 (+2-21) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-default-init.cpp
 (+2-2) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique.cpp (+2-2) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/replace-random-shuffle.cpp 
(+2-8) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/return-braced-init-list.cpp
 (+2-42) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/shrink-to-fit.cpp (+2-5) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/use-emplace-ignore-implicit-constructors.cpp
 (+3-26) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/use-ranges-pipe.cpp (+2-2) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/use-ranges.cpp (+2-2) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/use-trailing-return-type-transform-lambdas-cxx14.cpp
 (+2-4) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/modernize/use-trailing-return-type-transform-lambdas.cpp
 (+4-6) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/performance/inefficient-vector-operation.cpp
 (+3-43) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/readability/container-data-pointer.cpp
 (+1-13) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/readability/isolate-declaration-cxx17.cpp
 (+2-10) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/readability/qualified-auto-cxx20.cpp 
(+2-14) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/readability/qualified-auto.cpp 
(+3-14) 
- (modified) 
clang-tools-extra/test/clang-tidy/checkers/readability/redundant-smartptr-get.cpp
 (+2-18) 


``````````diff
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/smart-ptr/initializer_list.h
 b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/initializer_list
similarity index 67%
rename from 
clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/smart-ptr/initializer_list.h
rename to 
clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/initializer_list
index 28592cf8f70b1..bccea047d3e63 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/smart-ptr/initializer_list.h
+++ b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/initializer_list
@@ -1,32 +1,34 @@
+#ifndef _INITIALIZER_LIST_
+#define _INITIALIZER_LIST_
+
+// For size_t
+#include "string.h"
+#include "memory"
+
 namespace std {
-typedef decltype(sizeof(int)) size_t;
 
-template <class _E> class initializer_list {
+template <class _E>
+class initializer_list {
   const _E *__begin_;
   size_t __size_;
 
-  initializer_list(const _E *__b, size_t __s) : __begin_(__b), __size_(__s) {}
+  initializer_list(const _E *__b, size_t __s)
+      : __begin_(__b), __size_(__s) {}
 
 public:
   typedef _E value_type;
   typedef const _E &reference;
   typedef const _E &const_reference;
   typedef size_t size_type;
-
   typedef const _E *iterator;
   typedef const _E *const_iterator;
 
   initializer_list() : __begin_(nullptr), __size_(0) {}
-
   size_t size() const { return __size_; }
   const _E *begin() const { return __begin_; }
   const _E *end() const { return __begin_ + __size_; }
 };
 
-template <class _E>
-class vector {
- public:
-  vector(initializer_list<_E> init);
-  ~vector();
-};
 } // namespace std
+
+#endif // _INITIALIZER_LIST_
diff --git a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/memory 
b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/memory
new file mode 100644
index 0000000000000..2ec18dbec18f4
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/memory
@@ -0,0 +1,11 @@
+#ifndef _MEMORY_
+#define _MEMORY_
+
+namespace std {
+
+template <typename T>
+class allocator {};
+
+} // namespace std
+
+#endif // _MEMORY_
diff --git a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string 
b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string
index 7de709d07f2df..fc197d0afa714 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string
+++ b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/string
@@ -2,14 +2,13 @@
 #define _STRING_
 
 // For size_t
-#include <string.h>
+#include "string.h"
+#include "memory"
 
 typedef unsigned __INT16_TYPE__ char16;
 typedef unsigned __INT32_TYPE__ char32;
 
 namespace std {
-template <typename T>
-class allocator {};
 
 template <typename T>
 class char_traits {};
diff --git a/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/vector 
b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/vector
new file mode 100644
index 0000000000000..32eebb9387172
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/vector
@@ -0,0 +1,91 @@
+#ifndef _VECTOR_
+#define _VECTOR_
+
+#include "initializer_list"
+#include "memory"
+
+namespace std {
+
+template <typename T, typename A = allocator<T>>
+class vector {
+public:
+  typedef T value_type;
+  typedef size_t size_type;
+  typedef T *iterator;
+  typedef const T *const_iterator;
+  typedef T *reverse_iterator;
+  typedef const T *const_reverse_iterator;
+
+  vector();
+  vector(size_type count);
+  vector(size_type count, const T &value, const A &alloc = A());
+  vector(initializer_list<T>, const A &alloc = A());
+  vector(const vector &other);
+  vector(vector &&other);
+  ~vector();
+
+  vector &operator=(const vector &other);
+  vector &operator=(vector &&other);
+  vector &operator=(initializer_list<T>);
+
+  void push_back(const T &value);
+  void push_back(T &&value);
+
+  template <typename... Args>
+  void emplace_back(Args &&...args);
+
+  template <typename... Args>
+  iterator emplace(const_iterator pos, Args &&...args);
+
+  T &operator[](size_type pos);
+  const T &operator[](size_type pos) const;
+
+  T &front();
+  T &back();
+  T *data();
+  const T *data() const;
+
+  iterator begin();
+  iterator end();
+  const_iterator begin() const;
+  const_iterator end() const;
+  const_iterator cbegin() const;
+  const_iterator cend() const;
+
+  reverse_iterator rbegin();
+  reverse_iterator rend();
+  const_reverse_iterator rbegin() const;
+  const_reverse_iterator rend() const;
+  const_reverse_iterator crbegin() const;
+  const_reverse_iterator crend() const;
+
+  bool empty() const;
+  size_type size() const;
+
+  void clear();
+  void reserve(size_type new_cap);
+  void resize(size_type count);
+  void resize(size_type count, const T &value);
+
+  void assign(size_type count, const T &value);
+
+  iterator insert(const_iterator pos, const T &value);
+  iterator insert(const_iterator pos, T &&value);
+  iterator insert(const_iterator pos, size_type count, const T &value);
+
+  iterator erase(const_iterator pos);
+  iterator erase(const_iterator first, const_iterator last);
+
+  void swap(vector &other);
+  void shrink_to_fit();
+};
+
+template <typename T, typename A>
+bool operator==(const vector<T, A> &, const vector<T, A> &);
+
+template <typename T, typename A>
+bool operator!=(const vector<T, A> &, const vector<T, A> &);
+
+} // namespace std
+
+#endif // _VECTOR_
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/boost/Inputs/use-ranges/fake_std.h 
b/clang-tools-extra/test/clang-tidy/checkers/boost/Inputs/use-ranges/fake_std.h
index 7c3e39d6000d2..26842c4dbddcb 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/boost/Inputs/use-ranges/fake_std.h
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/boost/Inputs/use-ranges/fake_std.h
@@ -1,27 +1,9 @@
 #ifndef USE_RANGES_FAKE_STD_H
 #define USE_RANGES_FAKE_STD_H
-namespace std {
 
-template <typename T> class vector {
-public:
-  using iterator = T *;
-  using const_iterator = const T *;
-  using reverse_iterator = T*;
-  using reverse_const_iterator = const T*;
-
-  constexpr const_iterator begin() const;
-  constexpr const_iterator end() const;
-  constexpr const_iterator cbegin() const;
-  constexpr const_iterator cend() const;
-  constexpr iterator begin();
-  constexpr iterator end();
-  constexpr reverse_const_iterator rbegin() const;
-  constexpr reverse_const_iterator rend() const;
-  constexpr reverse_const_iterator crbegin() const;
-  constexpr reverse_const_iterator crend() const;
-  constexpr reverse_iterator rbegin();
-  constexpr reverse_iterator rend();
-};
+#include <vector>
+
+namespace std {
 
 template <typename Container> constexpr auto begin(const Container &Cont) {
   return Cont.begin();
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges-pipe.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges-pipe.cpp
index c0ce374840098..2b32429a77a60 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges-pipe.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges-pipe.cpp
@@ -1,7 +1,7 @@
 // RUN: %check_clang_tidy -std=c++14 %s boost-use-ranges %t 
-check-suffixes=,PIPE \
 // RUN:   -config="{CheckOptions: { \
-// RUN:     boost-use-ranges.UseReversePipe: true }}" -- -I 
%S/Inputs/use-ranges/
-// RUN: %check_clang_tidy -std=c++14 %s boost-use-ranges %t 
-check-suffixes=,NOPIPE  -- -I %S/Inputs/use-ranges/
+// RUN:     boost-use-ranges.UseReversePipe: true }}" -- -isystem 
%clang_tidy_headers -I %S/Inputs/use-ranges/
+// RUN: %check_clang_tidy -std=c++14 %s boost-use-ranges %t 
-check-suffixes=,NOPIPE  -- -isystem %clang_tidy_headers -I 
%S/Inputs/use-ranges/
 
 // CHECK-FIXES: #include <boost/algorithm/cxx11/is_sorted.hpp>
 // CHECK-FIXES: #include <boost/range/adaptor/reversed.hpp>
diff --git a/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges.cpp
index 06e70267da83a..a11915e26269f 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/boost/use-ranges.cpp
@@ -1,5 +1,5 @@
-// RUN: %check_clang_tidy -std=c++14 %s boost-use-ranges %t  -- -- -I 
%S/Inputs/use-ranges/
-// RUN: %check_clang_tidy -std=c++17 %s boost-use-ranges %t 
-check-suffixes=,CPP17 -- -I %S/Inputs/use-ranges/
+// RUN: %check_clang_tidy -std=c++14 %s boost-use-ranges %t  -- -- -isystem 
%clang_tidy_headers -I %S/Inputs/use-ranges/
+// RUN: %check_clang_tidy -std=c++17 %s boost-use-ranges %t 
-check-suffixes=,CPP17 -- -isystem %clang_tidy_headers -I %S/Inputs/use-ranges/
 
 // CHECK-FIXES: #include <boost/range/algorithm/find.hpp>
 // CHECK-FIXES: #include <boost/range/algorithm/reverse.hpp>
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/argument-comment.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/argument-comment.cpp
index 28b19ccdcf450..5576bc5541d60 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/bugprone/argument-comment.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/bugprone/argument-comment.cpp
@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy %s bugprone-argument-comment %t -- -- -I 
%S/Inputs/argument-comment
+// RUN: %check_clang_tidy %s bugprone-argument-comment %t -- -- -I 
%S/Inputs/argument-comment -isystem %clang_tidy_headers
 
 // FIXME: clang-tidy should provide a -verify mode to make writing these checks
 // easier and more accurate.
@@ -117,12 +117,8 @@ void g() { f6(/*xxy=*/0, 0); }
 }
 
 
+#include <vector>
 namespace std {
-template <typename T>
-class vector {
-public:
-  void assign(int __n, const T &__val);
-};
 template<typename T>
 void swap(T& __a, T& __b);
 } // namespace std
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/dangling-handle.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/dangling-handle.cpp
index 96c812617038a..eb044544d025e 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/bugprone/dangling-handle.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/bugprone/dangling-handle.cpp
@@ -1,31 +1,18 @@
 // RUN: %check_clang_tidy -std=c++11,c++14 -check-suffix=,CXX14 %s 
bugprone-dangling-handle %t -- \
 // RUN:   -config="{CheckOptions: \
 // RUN:             {bugprone-dangling-handle.HandleClasses: \
-// RUN:               'std::basic_string_view; ::llvm::StringRef;'}}"
+// RUN:               'std::basic_string_view; ::llvm::StringRef;'}}" \
+// RUN:   -- -isystem %clang_tidy_headers
 
 // RUN: %check_clang_tidy -std=c++17-or-later -check-suffix=,CXX17 %s 
bugprone-dangling-handle %t -- \
 // RUN:   -config="{CheckOptions: \
 // RUN:             {bugprone-dangling-handle.HandleClasses: \
-// RUN:               'std::basic_string_view; ::llvm::StringRef;'}}"
+// RUN:               'std::basic_string_view; ::llvm::StringRef;'}}" \
+// RUN:   -- -isystem %clang_tidy_headers
+#include <vector>
 
 namespace std {
 
-template <typename T>
-class vector {
- public:
-  using const_iterator = const T*;
-  using iterator = T*;
-  using size_type = int;
-
-  void assign(size_type count, const T& value);
-  iterator insert(const_iterator pos, const T& value);
-  iterator insert(const_iterator pos, T&& value);
-  iterator insert(const_iterator pos, size_type count, const T& value);
-  void push_back(const T&);
-  void push_back(T&&);
-  void resize(size_type count, const T& value);
-};
-
 template <typename, typename>
 class pair {};
 
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
index 984156c028c00..4831374bda6db 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/unchecked-optional-access.cpp
@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy %s bugprone-unchecked-optional-access %t -- -- -I 
%S/Inputs/unchecked-optional-access
+// RUN: %check_clang_tidy %s bugprone-unchecked-optional-access %t -- -- -I 
%S/Inputs/unchecked-optional-access -isystem %clang_tidy_headers
 
 #include "absl/types/optional.h"
 #include "folly/types/Optional.h"
@@ -351,15 +351,7 @@ void std_forward_rvalue_ref_safe(absl::optional<int>&& 
opt) {
   std::forward<absl::optional<int>>(opt).value();
 }
 
-namespace std {
-
-template <typename T> class vector {
-public:
-  T &operator[](unsigned long index);
-  bool empty();
-};
-
-} // namespace std
+#include <vector>
 
 struct S {
   absl::optional<float> x;
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/unused-return-value.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/unused-return-value.cpp
index e784c9b85172c..938f12a582fbe 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone/unused-return-value.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone/unused-return-value.cpp
@@ -1,5 +1,6 @@
 // RUN: %check_clang_tidy %s bugprone-unused-return-value %t -- \
-// RUN:   --config="{CheckOptions: 
{bugprone-unused-return-value.AllowCastToVoid: true}}" -- -fexceptions
+// RUN:   --config="{CheckOptions: 
{bugprone-unused-return-value.AllowCastToVoid: true}}" -- -fexceptions -isystem 
%clang_tidy_headers
+#include <vector>
 
 namespace std {
 
@@ -41,9 +42,6 @@ struct unique_ptr {
 template <typename T>
 struct char_traits;
 
-template <typename T>
-struct allocator;
-
 template <typename CharT,
           typename Traits = char_traits<CharT>,
           typename Allocator = allocator<CharT>>
@@ -53,11 +51,6 @@ struct basic_string {
 
 typedef basic_string<char> string;
 
-template <typename T, typename Allocator = std::allocator<T>>
-struct vector {
-  bool empty() const noexcept;
-};
-
 class error_code {
 };
 
diff --git a/clang-tools-extra/test/clang-tidy/checkers/llvm/use-ranges.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/llvm/use-ranges.cpp
index 415593ae16a53..7be84f59b5a8c 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/llvm/use-ranges.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/llvm/use-ranges.cpp
@@ -1,23 +1,11 @@
-// RUN: %check_clang_tidy %s llvm-use-ranges %t
+// RUN: %check_clang_tidy %s llvm-use-ranges %t -- -- -isystem 
%clang_tidy_headers
+#include <vector>
 
 // Test that the header is included
 // CHECK-FIXES: #include "llvm/ADT/STLExtras.h"
 
 namespace std {
 
-template <typename T> class vector {
-public:
-  using iterator = T *;
-  using const_iterator = const T *;
-
-  iterator begin();
-  iterator end();
-  const_iterator begin() const;
-  const_iterator end() const;
-  const_iterator cbegin() const;
-  const_iterator cend() const;
-};
-
 template <typename T> T* begin(T (&arr)[5]);
 template <typename T> T* end(T (&arr)[5]);
 
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/use-ranges/fake_std.h
 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/use-ranges/fake_std.h
index 69ac9954f4afa..f417dd32d8946 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/use-ranges/fake_std.h
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/use-ranges/fake_std.h
@@ -1,28 +1,9 @@
 #ifndef USE_RANGES_FAKE_STD_H
 #define USE_RANGES_FAKE_STD_H
 
-namespace std {
+#include <vector>
 
-template <typename T> class vector {
-public:
-  using iterator = T *;
-  using const_iterator = const T *;
-  using reverse_iterator = T *;
-  using reverse_const_iterator = const T *;
-
-  constexpr const_iterator begin() const;
-  constexpr const_iterator end() const;
-  constexpr const_iterator cbegin() const;
-  constexpr const_iterator cend() const;
-  constexpr iterator begin();
-  constexpr iterator end();
-  constexpr reverse_const_iterator rbegin() const;
-  constexpr reverse_const_iterator rend() const;
-  constexpr reverse_const_iterator crbegin() const;
-  constexpr reverse_const_iterator crend() const;
-  constexpr reverse_iterator rbegin();
-  constexpr reverse_iterator rend();
-};
+namespace std {
 
 template <typename Container> constexpr auto begin(const Container &Cont) {
   return Cont.begin();
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-default-init.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-default-init.cpp
index 7b96d014c4ed3..4556cdf445d29 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-default-init.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique-default-init.cpp
@@ -3,10 +3,10 @@
 // RUN:             {modernize-make-unique.IgnoreDefaultInitialization: \
 // RUN:              'false'}} \
 // RUN:             }" \
-// RUN:   -- -I %S/Inputs/smart-ptr
+// RUN:   -- -I %S/Inputs/smart-ptr -isystem %clang_tidy_headers
 
-#include "initializer_list.h"
 #include "unique_ptr.h"
+#include <vector>
 // CHECK-FIXES: #include <memory>
 
 void basic() {
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique.cpp
index bcdf4fb4e3756..45d9d15315e95 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/modernize/make-unique.cpp
@@ -1,7 +1,7 @@
-// RUN: %check_clang_tidy -std=c++14-or-later %s modernize-make-unique %t -- 
-- -I %S/Inputs/smart-ptr
+// RUN: %check_clang_tidy -std=c++14-or-later %s modernize-make-unique %t -- 
-- -I %S/Inputs/smart-ptr -isystem %clang_tidy_headers
 
 #include "unique_ptr.h"
-#include "initializer_list.h"
+#include <vector>
 // CHECK-FIXES: #include <memory>
 
 struct Base {
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/replace-random-shuffle.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/replace-random-shuffle.cpp
index f96a60b377873..5a9c8560da8ce 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/replace-random-shuffle.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/replace-random-shuffle.cpp
@@ -1,4 +1,5 @@
-// RUN: %check_clang_tidy %s modernize-replace-random-shuffle %t
+// RUN: %check_clang_tidy %s modernize-replace-random-shuffle %t -- -- 
-isystem %clang_tidy_headers
+#include <vector>
 
 //CHECK-FIXES: #include <random>
 
@@ -8,13 +9,6 @@ template <typename T> struct vec_iterator {
   vec_iterator operator++(int);
 };
 
-template <typename T> struct vector {
-  typedef vec_iterator<T> iterator;
-
-  iterator begin();
-  iterator end();
-};
-
 template <typename FwIt>
 void random_shuffle(FwIt begin, FwIt end);
 
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/return-braced-init-list.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/return-braced-init-list.cpp
index ae33d25d49152..42c01202055aa 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/return-braced-init-list.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/return-braced-init-list.cpp
@@ -1,45 +1,5 @@
-// RUN: %check_clang_tidy -std=c++11-or-later %s 
modernize-return-braced-init-list %t
-
-namespace std {
-typedef decltype(sizeof(int)) size_t;
-
-// libc++'s implementation
-template <class _E>
-class initializer_list {
-  const _E *__begin_;
-  size_t __size_;
-
-  initializer_list(const _E *__b, size_t __s)
-      : __begin_(__b),
-        __size_(__s) {}
-
-public:
-  typedef _E value_type;
-  typedef const _E &reference;
-  typedef const _E &const_reference;
-  typedef size_t size_type;
-
-  typedef const _E *iterator;
-  typedef const _E *const_iterator;
-
-  initializer_list() : __begin_(nullptr), __size_(0) {}
-
-  size_t size() const { return __size_; }
-  const _E *begin() const { return __begin_; }
-  const _E *end() const { return __begin_ + __size_; }
-};
-
-template <typename T>
-struct allocator {};
-
-template <typename T, typename Allocator = ::std::allocator<T>>
-class vector {
-public:
-  vector(T);
-  vector(size_t, T, const Allocator &alloc = Allocator());
-  vector(std::initializer_list<T>);
-};
-} // namespace std
+// RUN: %check_clang_tidy -std=c++11-or-later %s 
modernize-return-braced-init-list %t -- -- -isystem %clang_tidy_headers
+#include <vector>
 
 class Bar {};
 
diff --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize/shrink-to-fit.cpp 
b/clang-tools-extra/test/clang-tidy/checkers/modernize/shrink-to-fit.cpp
index a3754e6822ac8..fc27719bab12b 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/modernize/shrink-to-fit.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/modernize/shrink-to-fit.cpp
@@ -1,8 +1,5 @@
-// RUN: %check...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/183963
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