Provide an example for the Go rules, eg.

 bazel test examples/go/lib:lib_test
 bazel build examples/go/bin:bin

--
MOS_MIGRATED_REVID=105070940

BUILD

@@ -9,3 +9,7 @@ filegroup(
     name = "dummy",
     visibility = ["//visibility:public"],
 )
+
+load("/tools/build_rules/go/def", "go_prefix")
+
+go_prefix("github.com/bazelbuild/bazel")

WORKSPACE

@@ -80,3 +80,14 @@ new_http_archive(
     sha256 = "87494218eea2441a7a24b40f227330877dbba75c5fa9014ac6188711baed53f6",
     build_file = "tools/build_defs/sass/sassc.BUILD",
 )
+
+bind(name  = "go_prefix",
+  actual = "//:go_prefix",
+)
+
+new_http_archive(
+  name=  "golang-linux-amd64",
+  url = "https://storage.googleapis.com/golang/go1.5.1.linux-amd64.tar.gz",
+  build_file = "tools/build_rules/go/toolchain/BUILD.go-toolchain",
+  sha256 = "2593132ca490b9ee17509d65ee2cd078441ff544899f6afb97a03d08c25524e7"
+)

examples/go/bin/BUILD

@@ -0,0 +1,14 @@
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+load("/tools/build_rules/go/def", "go_binary")
+
+go_binary(
+    name = "bin",
+    srcs = ["bin.go"],
+    deps = [
+        "//examples/go/lib:go_default_library",
+        "//examples/go/vendor/github_com/user/vendored:go_default_library",
+    ],
+)

examples/go/bin/bin.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"fmt"
+
+	"github_com/user/vendored"
+
+	"github.com/bazelbuild/bazel/examples/go/lib"
+)
+
+func main() {
+	fmt.Println("meaning: ", lib.Meaning())
+	fmt.Println("vendored: ", vendored.Vendored())
+}

examples/go/lib/BUILD

@@ -0,0 +1,20 @@
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+load("/tools/build_rules/go/def", "go_library", "go_test")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "lib.go",
+    ],
+)
+
+go_test(
+    name = "lib_test",
+    srcs = [
+        "lib_test.go",
+    ],
+    library = ":go_default_library",
+)

examples/go/lib/lib.go

@@ -0,0 +1,6 @@
+package lib
+
+// Meaning calculates the meaning of Life, the Universe and Everything.
+func Meaning() int {
+	return 42
+}

examples/go/lib/lib_test.go

@@ -0,0 +1,11 @@
+package lib
+
+import (
+	"testing"
+)
+
+func TestMeaning(t *testing.T) {
+	if m := Meaning(); m != 42 {
+		t.Errorf("got %d, want 42", m)
+	}
+}

examples/go/vendor/github_com/user/vendored/BUILD

@@ -0,0 +1,12 @@
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+load("/tools/build_rules/go/def", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "vendored.go",
+    ],
+)

examples/go/vendor/github_com/user/vendored/vendored.go

@@ -0,0 +1,6 @@
+package vendored
+
+// Vendored returns a string.
+func Vendored() string {
+	return "I was vendored"
+}