1 files changed, 92 insertions, 0 deletions
diff --git a/spec/bundler/install/gems/native_extensions_spec.rb b/spec/bundler/install/gems/native_extensions_spec.rb
new file mode 100644
index 0000000000..dcf67e976e
--- /dev/null
+++ b/spec/bundler/install/gems/native_extensions_spec.rb
@@ -0,0 +1,92 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe "installing a gem with native extensions", :ruby_repo do
+  it "installs" do
+    build_repo2 do
+      build_gem "c_extension" do |s|
+        s.extensions = ["ext/extconf.rb"]
+        s.write "ext/extconf.rb", <<-E
+          require "mkmf"
+          name = "c_extension_bundle"
+          dir_config(name)
+          raise "OMG" unless with_config("c_extension") == "hello"
+          create_makefile(name)
+        E
+
+        s.write "ext/c_extension.c", <<-C
+          #include "ruby.h"
+
+          VALUE c_extension_true(VALUE self) {
+            return Qtrue;
+          }
+
+          void Init_c_extension_bundle() {
+            VALUE c_Extension = rb_define_class("CExtension", rb_cObject);
+            rb_define_method(c_Extension, "its_true", c_extension_true, 0);
+          }
+        C
+
+        s.write "lib/c_extension.rb", <<-C
+          require "c_extension_bundle"
+        C
+      end
+    end
+
+    gemfile <<-G
+      source "file://#{gem_repo2}"
+      gem "c_extension"
+    G
+
+    bundle "config build.c_extension --with-c_extension=hello"
+    bundle "install"
+
+    expect(out).not_to include("extconf.rb failed")
+    expect(out).to include("Installing c_extension 1.0 with native extensions")
+
+    run "Bundler.require; puts CExtension.new.its_true"
+    expect(out).to eq("true")
+  end
+
+  it "installs from git" do
+    build_git "c_extension" do |s|
+      s.extensions = ["ext/extconf.rb"]
+      s.write "ext/extconf.rb", <<-E
+        require "mkmf"
+        name = "c_extension_bundle"
+        dir_config(name)
+        raise "OMG" unless with_config("c_extension") == "hello"
+        create_makefile(name)
+      E
+
+      s.write "ext/c_extension.c", <<-C
+        #include "ruby.h"
+
+        VALUE c_extension_true(VALUE self) {
+          return Qtrue;
+        }
+
+        void Init_c_extension_bundle() {
+          VALUE c_Extension = rb_define_class("CExtension", rb_cObject);
+          rb_define_method(c_Extension, "its_true", c_extension_true, 0);
+        }
+      C
+
+      s.write "lib/c_extension.rb", <<-C
+        require "c_extension_bundle"
+      C
+    end
+
+    bundle! "config build.c_extension --with-c_extension=hello"
+
+    install_gemfile! <<-G
+      gem "c_extension", :git => #{lib_path("c_extension-1.0").to_s.dump}
+    G
+
+    expect(out).not_to include("extconf.rb failed")
+    expect(out).to include("Using c_extension 1.0")
+
+    run! "Bundler.require; puts CExtension.new.its_true"
+    expect(out).to eq("true")
+  end
+end