tests: add normalize_doc_attributes config tests (rust-lang#3630)

Author: calebcartwright

tests/source/configs/normalize_doc_attributes/false.rs

@@ -0,0 +1,13 @@
+// rustfmt-normalize_doc_attributes: false
+// Normalize doc attributes
+
+#![doc = " Example documentation"]
+
+#[doc = " Example item documentation"]
+pub enum Foo {}
+
+#[doc = "        Lots of space"]
+pub enum Bar {}
+
+#[doc = "no leading space"]
+pub mod FooBar {}

tests/source/configs/normalize_doc_attributes/true.rs

@@ -0,0 +1,13 @@
+// rustfmt-normalize_doc_attributes: true
+// Normalize doc attributes
+
+#![doc = " Example documentation"]
+
+#[doc = " Example item documentation"]
+pub enum Foo {}
+
+#[doc = "        Lots of space"]
+pub enum Bar {}
+
+#[doc = "no leading space"]
+pub mod FooBar {}

tests/target/configs/normalize_doc_attributes/false.rs

@@ -0,0 +1,13 @@
+// rustfmt-normalize_doc_attributes: false
+// Normalize doc attributes
+
+#![doc = " Example documentation"]
+
+#[doc = " Example item documentation"]
+pub enum Foo {}
+
+#[doc = "        Lots of space"]
+pub enum Bar {}
+
+#[doc = "no leading space"]
+pub mod FooBar {}

tests/target/configs/normalize_doc_attributes/true.rs

@@ -0,0 +1,13 @@
+// rustfmt-normalize_doc_attributes: true
+// Normalize doc attributes
+
+//! Example documentation
+
+/// Example item documentation
+pub enum Foo {}
+
+///        Lots of space
+pub enum Bar {}
+
+///no leading space
+pub mod FooBar {}