try to fix windows ci

Author: wgtmac

src/iceberg/name_mapping.h

@@ -76,6 +76,12 @@ class ICEBERG_EXPORT MappedFields {
 
   friend bool operator==(const MappedFields& lhs, const MappedFields& rhs);
 
+  MappedFields(const MappedFields& other) = delete;
+  MappedFields& operator=(const MappedFields& other) = delete;
+
+  MappedFields(MappedFields&& other) noexcept = default;
+  MappedFields& operator=(MappedFields&& other) noexcept = default;
+
  private:
   explicit MappedFields(std::vector<MappedField> fields);
 

src/iceberg/util/checked_cast_internal.h

@@ -176,16 +176,30 @@ TEST_F(NameMappingTest, MappedFieldsAccess) {
 }
 
 TEST_F(NameMappingTest, ToString) {
-  auto mapping = MakeNameMapping();
-  auto expected = R"([
-  ([bar, foo] -> 1)
-  ([baz] -> 2)
-  ([qux] -> 3, [([hello] -> 4), ([world] -> 5)])
+  {
+    std::vector<MappedField> fields;
+    fields.emplace_back(MappedField{.names = {"foo"}, .field_id = 1});
+
+    std::vector<MappedField> nested_fields;
+    nested_fields.emplace_back(MappedField{.names = {"hello"}, .field_id = 3});
+    nested_fields.emplace_back(MappedField{.names = {"world"}, .field_id = 4});
+    auto nested_mapping = MappedFields::Make(std::move(nested_fields));
+    fields.emplace_back(MappedField{
+        .names = {"bar"}, .field_id = 2, .nested_mapping = std::move(nested_mapping)});
+
+    auto mapping = NameMapping::Make(std::move(fields));
+
+    auto expected = R"([
+  ([foo] -> 1)
+  ([bar] -> 2, [([hello] -> 3), ([world] -> 4)])
 ])";
-  EXPECT_EQ(ToString(*mapping), expected);
+    EXPECT_EQ(ToString(*mapping), expected);
+  }
 
-  auto empty_mapping = NameMapping::MakeEmpty();
-  EXPECT_EQ(ToString(*empty_mapping), "[]");
+  {
+    auto empty_mapping = NameMapping::MakeEmpty();
+    EXPECT_EQ(ToString(*empty_mapping), "[]");
+  }
 }
 
 }  // namespace iceberg