[libcxx-commits] [libcxx] [libc++][test] Fix and refactor exception tests for std::vector (PR #117641)

[Peng Liu via libcxx-commits]

================
@@ -192,51 +115,52 @@ int main(int, char**) {
 
   try { // Throw in vector(InputIterator, InputIterator, const allocator_type&) from allocator
     int a[] = {1, 2};
-    Allocator<int> alloc(false);
+    throwing_allocator<int> alloc(false, true); // throw on copy only
     AllocVec vec(forward_iterator<int*>(a), forward_iterator<int*>(a + 2), alloc);
   } catch (int) {
     // FIXME: never called.
   }
   check_new_delete_called();
 
   try { // Throw in vector(const vector&) from type
-    std::vector<ThrowingT> vec;
-    int throw_after = 0;
+    std::vector<throwing_t> vec;
+    int throw_after = 1;
     vec.emplace_back(throw_after);
     auto vec2 = vec;
   } catch (int) {
   }
   check_new_delete_called();
 
   try { // Throw in vector(const vector&, const allocator_type&) from type
-    std::vector<ThrowingT> vec;
+    std::vector<throwing_t> vec;
     int throw_after = 1;
     vec.emplace_back(throw_after);
-    std::vector<ThrowingT> vec2(vec, std::allocator<int>());
+    std::vector<throwing_t> vec2(vec, std::allocator<int>());
   } catch (int) {
   }
   check_new_delete_called();
 
-  try { // Throw in vector(vector&&, const allocator_type&) from type
-    std::vector<ThrowingT, Allocator<ThrowingT> > vec(Allocator<ThrowingT>(false));
-    int throw_after = 1;
-    vec.emplace_back(throw_after);
-    std::vector<ThrowingT, Allocator<ThrowingT> > vec2(std::move(vec), Allocator<ThrowingT>(false));
+  try { // Throw in vector(vector&&, const allocator_type&) from type during element-wise move
+    std::vector<throwing_t, test_allocator<throwing_t> > vec(test_allocator<throwing_t>(1));
+    int throw_after = 10;
+    throwing_t v(throw_after);
+    vec.insert(vec.end(), 6, v);
+    std::vector<throwing_t, test_allocator<throwing_t> > vec2(std::move(vec), test_allocator<throwing_t>(2));
   } catch (int) {
----------------
winner245 wrote:

This test did not throw.

https://github.com/llvm/llvm-project/pull/117641