style: rename crates to kebab case

crates/hir-def/src/macro_expansion_tests/proc_macros.rs

@@ -0,0 +1,94 @@
+//! Tests for user-defined procedural macros.
+//!
+//! Note `//- proc_macros: identity` fixture metas in tests -- we don't use real
+//! proc-macros here, as that would be slow. Instead, we use several hard-coded
+//! in-memory macros.
+use expect_test::expect;
+
+use crate::macro_expansion_tests::check;
+
+#[test]
+fn attribute_macro_attr_censoring() {
+    cov_mark::check!(attribute_macro_attr_censoring);
+    check(
+        r#"
+//- proc_macros: identity
+#[attr1] #[proc_macros::identity] #[attr2]
+struct S;
+"#,
+        expect![[r##"
+#[attr1] #[proc_macros::identity] #[attr2]
+struct S;
+
+#[attr1]
+#[attr2] struct S;"##]],
+    );
+}
+
+#[test]
+fn derive_censoring() {
+    cov_mark::check!(derive_censoring);
+    check(
+        r#"
+//- proc_macros: derive_identity
+//- minicore:derive
+#[attr1]
+#[derive(Foo)]
+#[derive(proc_macros::DeriveIdentity)]
+#[derive(Bar)]
+#[attr2]
+struct S;
+"#,
+        expect![[r##"
+#[attr1]
+#[derive(Foo)]
+#[derive(proc_macros::DeriveIdentity)]
+#[derive(Bar)]
+#[attr2]
+struct S;
+
+#[attr1]
+#[derive(Bar)]
+#[attr2] struct S;"##]],
+    );
+}
+
+#[test]
+fn attribute_macro_syntax_completion_1() {
+    // this is just the case where the input is actually valid
+    check(
+        r#"
+//- proc_macros: identity_when_valid
+#[proc_macros::identity_when_valid]
+fn foo() { bar.baz(); blub }
+"#,
+        expect![[r##"
+#[proc_macros::identity_when_valid]
+fn foo() { bar.baz(); blub }
+
+fn foo() {
+    bar.baz();
+    blub
+}"##]],
+    );
+}
+
+#[test]
+fn attribute_macro_syntax_completion_2() {
+    // common case of dot completion while typing
+    check(
+        r#"
+//- proc_macros: identity_when_valid
+#[proc_macros::identity_when_valid]
+fn foo() { bar.; blub }
+"#,
+        expect![[r##"
+#[proc_macros::identity_when_valid]
+fn foo() { bar.; blub }
+
+fn foo() {
+    bar. ;
+    blub
+}"##]],
+    );
+}