Add tests for --all-platforms

bundler/spec/commands/binstubs_spec.rb

@@ -51,6 +51,18 @@
       expect(bundled_app("bin/rake")).to exist
     end
 
+    it "allows installing binstubs for all platforms" do
+      install_gemfile <<-G
+        source "#{file_uri_for(gem_repo1)}"
+        gem "rack"
+      G
+
+      bundle "binstubs rack --all-platforms"
+
+      expect(bundled_app("bin/rackup")).to exist
+      expect(bundled_app("bin/rackup.cmd")).to exist
+    end
+
     it "displays an error when used without any gem" do
       install_gemfile <<-G
         source "#{file_uri_for(gem_repo1)}"
@@ -356,6 +368,14 @@
         expect(bundled_app("foo/rackup")).to exist
       end
     end
+
+    context "when specified --all-platforms option" do
+      it "generates standalone binstubs for all platforms" do
+        bundle "binstubs rack --standalone --all-platforms"
+        expect(bundled_app("bin/rackup")).to exist
+        expect(bundled_app("bin/rackup.cmd")).to exist
+      end
+    end
   end
 
   context "when the bin already exists" do