Merge pull request #2254 from chaoran:master

PiperOrigin-RevId: 248759825

Author: gennadiycivil

googletest/docs/advanced.md

@@ -1817,78 +1817,6 @@ For technical reasons, there are some caveats:
 1.  `statement` in `EXPECT_FATAL_FAILURE{_ON_ALL_THREADS}()()` cannot return a
     value.
 
-## Registering tests programmatically
-
-The `TEST` macros handle the vast majority of all use cases, but there are few
-were runtime registration logic is required. For those cases, the framework
-provides the `::testing::RegisterTest` that allows callers to register arbitrary
-tests dynamically.
-
-This is an advanced API only to be used when the `TEST` macros are insufficient.
-The macros should be preferred when possible, as they avoid most of the
-complexity of calling this function.
-
-It provides the following signature:
-
-```c++
-template <typename Factory>
-TestInfo* RegisterTest(const char* test_case_name, const char* test_name,
-                       const char* type_param, const char* value_param,
-                       const char* file, int line, Factory factory);
-```
-
-The `factory` argument is a factory callable (move-constructible) object or
-function pointer that creates a new instance of the Test object. It handles
-ownership to the caller. The signature of the callable is `Fixture*()`, where
-`Fixture` is the test fixture class for the test. All tests registered with the
-same `test_case_name` must return the same fixture type. This is checked at
-runtime.
-
-The framework will infer the fixture class from the factory and will call the
-`SetUpTestCase` and `TearDownTestCase` for it.
-
-Must be called before `RUN_ALL_TESTS()` is invoked, otherwise behavior is
-undefined.
-
-Use case example:
-
-```c++
-class MyFixture : public ::testing::Test {
- public:
-  // All of these optional, just like in regular macro usage.
-  static void SetUpTestCase() { ... }
-  static void TearDownTestCase() { ... }
-  void SetUp() override { ... }
-  void TearDown() override { ... }
-};
-
-class MyTest : public MyFixture {
- public:
-  explicit MyTest(int data) : data_(data) {}
-  void TestBody() override { ... }
-
- private:
-  int data_;
-};
-
-void RegisterMyTests(const std::vector<int>& values) {
-  for (int v : values) {
-    ::testing::RegisterTest(
-        "MyFixture", ("Test" + std::to_string(v)).c_str(), nullptr,
-        std::to_string(v).c_str(),
-        __FILE__, __LINE__,
-        // Important to use the fixture type as the return type here.
-        [=]() -> MyFixture* { return new MyTest(v); });
-  }
-}
-...
-int main(int argc, char** argv) {
-  std::vector<int> values_to_test = LoadValuesFromConfig();
-  RegisterMyTests(values_to_test);
-  ...
-  return RUN_ALL_TESTS();
-}
-```
 
 ## Getting the Current Test's Name
 

googletest/include/gtest/gtest-printers.h

@@ -151,9 +151,10 @@ class TypeWithoutFormatter {
  public:
   // This default version is called when kTypeKind is kOtherType.
   static void PrintValue(const T& value, ::std::ostream* os) {
-    PrintBytesInObjectTo(static_cast<const unsigned char*>(
-                             reinterpret_cast<const void*>(&value)),
-                         sizeof(value), os);
+    PrintBytesInObjectTo(
+        static_cast<const unsigned char*>(
+            reinterpret_cast<const void*>(std::addressof(value))),
+        sizeof(value), os);
   }
 };
 

googletest/test/googletest-printers-test.cc

@@ -1556,6 +1556,65 @@ TEST(PrintOneofTest, Basic) {
       PrintToString(Type(NonPrintable{})));
 }
 #endif  // GTEST_HAS_ABSL
+namespace {
+class string_ref;
+
+/**
+ * This is a synthetic pointer to a fixed size string.
+ */
+class string_ptr {
+ public:
+  string_ptr(const char* data, size_t size) : data_(data), size_(size) {}
+
+  string_ptr& operator++() noexcept {
+    data_ += size_;
+    return *this;
+  }
+
+  string_ref operator*() const noexcept;
+
+ private:
+  const char* data_;
+  size_t size_;
+};
+
+/**
+ * This is a synthetic reference of a fixed size string.
+ */
+class string_ref {
+ public:
+  string_ref(const char* data, size_t size) : data_(data), size_(size) {}
+
+  string_ptr operator&() const noexcept { return {data_, size_}; }  // NOLINT
+
+  bool operator==(const char* s) const noexcept {
+    if (size_ > 0 && data_[size_ - 1] != 0) {
+      return std::string(data_, size_) == std::string(s);
+    } else {
+      return std::string(data_) == std::string(s);
+    }
+  }
+
+ private:
+  const char* data_;
+  size_t size_;
+};
+
+string_ref string_ptr::operator*() const noexcept { return {data_, size_}; }
+
+TEST(string_ref, compare) {
+  const char* s = "alex\0davidjohn\0";
+  string_ptr ptr(s, 5);
+  EXPECT_EQ(*ptr, "alex");
+  EXPECT_TRUE(*ptr == "alex");
+  ++ptr;
+  EXPECT_EQ(*ptr, "david");
+  EXPECT_TRUE(*ptr == "david");
+  ++ptr;
+  EXPECT_EQ(*ptr, "john");
+}
+
+}  // namespace
 
 }  // namespace gtest_printers_test
 }  // namespace testing