Add a simple test for rustdoc search index contents

src/test/run-make/rustdoc-search-index/Makefile

@@ -0,0 +1,17 @@
+-include ../tools.mk
+
+# FIXME ignore windows
+ifndef IS_WINDOWS
+
+source=index.rs
+
+all:
+	$(HOST_RPATH_ENV) $(RUSTDOC) -w html -o $(TMPDIR)/doc $(source)
+	cp $(source) $(TMPDIR)
+	cp verify.sh $(TMPDIR)
+	$(call RUN,verify.sh) $(TMPDIR)
+
+else
+all:
+
+endif

src/test/run-make/rustdoc-search-index/index.rs

@@ -0,0 +1,29 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![crate_name = "rustdoc_test"]
+
+// In: Foo
+pub use private::Foo;
+
+mod private {
+    pub struct Foo;
+    impl Foo {
+        // In: test_method
+        pub fn test_method() {}
+        // Out: priv_method
+        fn priv_method() {}
+    }
+
+    pub trait PrivateTrait {
+        // Out: priv_method
+        fn trait_method() {}
+    }
+}

src/test/run-make/rustdoc-search-index/verify.sh

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+#!/bin/sh
+
+source="$1/index.rs"
+index="$1/doc/search-index.js"
+
+if ! [ -e $index ]
+then
+    echo "Could not find the search index (looked for $index)"
+    exit 1
+fi
+
+ins=$(grep -o 'In: .*' $source | sed 's/In: \(.*\)/\1/g')
+outs=$(grep -o 'Out: .*' $source | sed 's/Out: \(.*\)/\1/g')
+
+for p in $ins
+do
+    if ! grep -q $p $index
+    then
+        echo "'$p' was erroneously excluded from search index."
+        exit 1
+    fi
+done
+
+for p in $outs
+do
+    if grep -q $p $index
+    then
+        echo "'$p' was erroneously included in search index."
+        exit 1
+    fi
+done
+
+exit 0