1 files changed, 12 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/target/configs/indent_style/block_trailing_comma_call/one.rs b/src/tools/rustfmt/tests/target/configs/indent_style/block_trailing_comma_call/one.rs
new file mode 100644
index 000000000..6b9489bef
--- /dev/null
+++ b/src/tools/rustfmt/tests/target/configs/indent_style/block_trailing_comma_call/one.rs
@@ -0,0 +1,12 @@
+// rustfmt-version: One
+// rustfmt-error_on_line_overflow: false
+// rustfmt-indent_style: Block
+
+// rustfmt should not add trailing comma when rewriting macro. See #1528.
+fn a() {
+    panic!("this is a long string that goes past the maximum line length causing rustfmt to insert a comma here:");
+    foo(
+        a,
+        oooptoptoptoptptooptoptoptoptptooptoptoptoptptoptoptoptoptpt(),
+    );
+}