diff --git a/tests/source/merge_imports.rs b/tests/source/merge_imports.rs
new file mode 100644
index 00000000000..8033e8d8061
--- /dev/null
+++ b/tests/source/merge_imports.rs
@@ -0,0 +1,26 @@
+// rustfmt-merge_imports: true
+// rustfmt-reorder_imports: true
+// rustfmt-reorder_imported_names: true
+
+use a::{c,d,b};
+use a::{d, e, b, a, f};
+use a::{f, g, c};
+
+#[doc(hidden)]
+use a::b;
+use a::c;
+use a::d;
+
+use a::{c, d, e};
+#[doc(hidden)]
+use a::b;
+use a::d;
+
+pub use foo::bar;
+use foo::{a, b, c};
+pub use foo::foobar;
+
+use a::{b::{c::*}};
+use a::{b::{c::{}}};
+use a::{b::{c::d}};
+use a::{b::{c::{xxx, yyy, zzz}}};
diff --git a/tests/target/merge_imports.rs b/tests/target/merge_imports.rs
new file mode 100644
index 00000000000..9ce6ef7ee7a
--- /dev/null
+++ b/tests/target/merge_imports.rs
@@ -0,0 +1,18 @@
+// rustfmt-merge_imports: true
+// rustfmt-reorder_imports: true
+// rustfmt-reorder_imported_names: true
+
+use a::{a, b, c, d, e, f, g};
+
+#[doc(hidden)]
+use a::b;
+use a::{c, d};
+
+#[doc(hidden)]
+use a::b;
+use a::{c, d, e};
+
+use foo::{a, b, c};
+pub use foo::{bar, foobar};
+
+use a::b::c::{d, xxx, yyy, zzz, *};