bazel libdeps test

test.sh

#!/usr/bin/env bash

function test_cpp_libdeps_fail() {
    echo ">>> THIS WILL FAIL"
    rm -fr pkg WORKSPACE
    mkdir -p pkg
    cat <<'EOF' >pkg/BUILD
cc_library(
  name = "a.so",
  srcs = ["a.cc"],
)

cc_library(
  name = "b",
  srcs = ["b.cc", "a.so"],
)

cc_binary(
  name = "main",
  srcs = ["main.cc"],
  deps = [":b"],
)
EOF

    cat <<'EOF' >pkg/a.cc
#include <string>

std::string get_hello(std::string world) {
  return "Hello, " + world + "!";
}
EOF

    cat <<'EOF' >pkg/b.cc
#include <string>
#include <iostream>

std::string get_hello(std::string);

void print_hello(std::string world) {
  std::cout << get_hello(world) << std::endl;
}
EOF

    cat <<'EOF' >pkg/main.cc
#include <string>
void print_hello(std::string);

int main() {
   print_hello(std::string("World"));
}
EOF
    touch WORKSPACE

    bazel build //pkg:a.so
    bazel build //pkg:b
    bazel run //pkg:main
    echo "<<< THIS WILL FAIL"
}

function test_cpp_libdeps_success() {
    echo ">>> THIS WILL PASS"
    rm -fr pkg WORKSPACE
    mkdir -p pkg
    cat <<'EOF' >pkg/BUILD
cc_library(
  name = "a.so",
  srcs = ["a.cc"],
)

cc_library(
  name = "b",
  srcs = ["b.cc"],
  deps = ["a.so"],
)

cc_binary(
  name = "main",
  srcs = ["main.cc"],
  deps = [":b"],
)
EOF

    cat <<'EOF' >pkg/a.cc
#include <string>

std::string get_hello(std::string world) {
  return "Hello, " + world + "!";
}
EOF

    cat <<'EOF' >pkg/b.cc
#include <string>
#include <iostream>

std::string get_hello(std::string);

void print_hello(std::string world) {
  std::cout << get_hello(world) << std::endl;
}
EOF

    cat <<'EOF' >pkg/main.cc
#include <string>
void print_hello(std::string);

int main() {
   print_hello(std::string("World"));
}
EOF
    touch WORKSPACE

    bazel build //pkg:a.so
    bazel build //pkg:b
    bazel run //pkg:main
    echo "<<< THIS WILL PASS"
}

test_cpp_libdeps_fail
echo "----------------------------------"
test_cpp_libdeps_success