kou commented on code in PR #40075:
URL: https://github.com/apache/arrow/pull/40075#discussion_r1491599653


##########
cpp/src/arrow/filesystem/azurefs.cc:
##########
@@ -2544,7 +2635,28 @@ Status AzureFileSystem::DeleteRootDirContents() {
 
 Status AzureFileSystem::DeleteFile(const std::string& path) {
   ARROW_ASSIGN_OR_RAISE(auto location, AzureLocation::FromString(path));
-  return impl_->DeleteFile(location);
+  if (location.container.empty()) {
+    return Status::Invalid("DeleteFile requires a non-empty path.");
+  }
+  if (internal::HasTrailingSlash(location.path) || location.path.empty()) {
+    // Container paths (locations w/o path) or paths ending with a slash are 
not file
+    // paths.
+    return NotAFile(location);
+  }

Review Comment:
   Hmm. It seems that both of `ValidateFileLocation()` and here check 
`location.container.empty()`, `location.path.empty()` and `HasTrailingSlash()`.



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