1 files changed, 46 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/configs/merge_derives/true.rs b/src/tools/rustfmt/tests/source/configs/merge_derives/true.rs
new file mode 100644
index 000000000..18b8443f0
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/configs/merge_derives/true.rs
@@ -0,0 +1,46 @@
+// rustfmt-merge_derives: true
+// Merge multiple derives to a single one.
+
+#[bar]
+#[derive(Eq, PartialEq)]
+#[foo]
+#[derive(Debug)]
+#[foobar]
+#[derive(Copy, Clone)]
+pub enum Foo {}
+
+#[derive(Eq, PartialEq)]
+#[derive(Debug)]
+#[foobar]
+#[derive(Copy, Clone)]
+pub enum Bar {}
+
+#[derive(Eq, PartialEq)]
+#[derive(Debug)]
+#[derive(Copy, Clone)]
+pub enum FooBar {}
+
+mod foo {
+#[bar]
+#[derive(Eq, PartialEq)]
+#[foo]
+#[derive(Debug)]
+#[foobar]
+#[derive(Copy, Clone)]
+pub enum Foo {}
+}
+
+mod bar {
+#[derive(Eq, PartialEq)]
+#[derive(Debug)]
+#[foobar]
+#[derive(Copy, Clone)]
+pub enum Bar {}
+}
+
+mod foobar {
+#[derive(Eq, PartialEq)]
+#[derive(Debug)]
+#[derive(Copy, Clone)]
+pub enum FooBar {}
+}