BUILD

cc_test(
    name = "my_test",
    srcs = ["my_test.cc"],
    deps = ["//external:gtest/main"],
)

gtest.BUILD

cc_library(
    name = "main",
    srcs = glob(
        ["src/*.cc"],
        exclude = ["src/gtest-all.cc"]
    ),
    hdrs = glob(["include/**/*.h"]),
    includes = [
        ".",
        "include"
    ],
    linkopts = ["-pthread"],
    visibility = ["//visibility:public"],
)

my_test.cc

#include "gtest/gtest.h"

TEST(FactorialTest, Negative) {
  EXPECT_EQ(1, 1);
}

WORKSPACE

new_http_archive(
    name = "gtest-repo",
    url = "https://googletest.googlecode.com/files/gtest-1.7.0.zip",
    sha256 = "247ca18dd83f53deb1328be17e4b1be31514cedfc1e3424f672bf11fd7e0d60d",
    build_file = "gtest.BUILD",
)

bind(
    name = "gtest/main",
    actual = "@gtest-repo//:main",
)