Add cross-crate C-like variant test

Author: GuillaumeGomez

tests/rustdoc/auxiliary/enum-variant.rs

@@ -0,0 +1,24 @@
+#![crate_name = "bar"]
+
+pub enum E {
+    A = 12,
+    B,
+    C = 1245,
+}
+
+pub enum F {
+    A,
+    B,
+}
+
+#[repr(u32)]
+pub enum G {
+    A = 12,
+    B,
+    C(u32),
+}
+
+pub enum H {
+    A,
+    C(u32),
+}

tests/rustdoc/enum-variant-value.rs

@@ -1,8 +1,12 @@
 // This test ensures that the variant value is displayed with underscores but without
 // a type name at the end.
 
+// aux-build:enum-variant.rs
+
 #![crate_name = "foo"]
 
+extern crate bar;
+
 // In this case, since all variants are C-like variants and at least one of them
 // has its value set, we display values for all of them.
 
@@ -60,3 +64,35 @@ pub enum D {
     A,
     C(u32),
 }
+
+// @has 'foo/enum.E.html'
+// @has - '//*[@class="rust item-decl"]/code' 'A = 12,'
+// @has - '//*[@class="rust item-decl"]/code' 'B = 13,'
+// @has - '//*[@class="rust item-decl"]/code' 'C = 1_245,'
+// @matches - '//*[@id="variant.A"]/h3' '^A = 12$'
+// @matches - '//*[@id="variant.B"]/h3' '^B = 13$'
+// @matches - '//*[@id="variant.C"]/h3' '^C = 1_245$'
+pub use bar::E;
+
+// @has 'foo/enum.F.html'
+// @has - '//*[@class="rust item-decl"]/code' 'A,'
+// @has - '//*[@class="rust item-decl"]/code' 'B,'
+// @matches - '//*[@id="variant.A"]/h3' '^A$'
+// @matches - '//*[@id="variant.B"]/h3' '^B$'
+pub use bar::F;
+
+// @has 'foo/enum.G.html'
+// @has - '//*[@class="rust item-decl"]/code' 'A = 12,'
+// @has - '//*[@class="rust item-decl"]/code' 'B,'
+// @has - '//*[@class="rust item-decl"]/code' 'C(u32),'
+// @matches - '//*[@id="variant.A"]/h3' '^A = 12$'
+// @matches - '//*[@id="variant.B"]/h3' '^B$'
+// @has - '//*[@id="variant.C"]/h3' 'C(u32)'
+pub use bar::G;
+
+// @has 'foo/enum.H.html'
+// @has - '//*[@class="rust item-decl"]/code' 'A,'
+// @has - '//*[@class="rust item-decl"]/code' 'C(u32),'
+// @matches - '//*[@id="variant.A"]/h3' '^A$'
+// @has - '//*[@id="variant.C"]/h3' 'C(u32)'
+pub use bar::H;