1 files changed, 22 insertions, 1 deletions
diff --git a/spec/bundler/plugins/install_spec.rb b/spec/bundler/plugins/install_spec.rb
index 009516260a..efee5fdd23 100644
--- a/spec/bundler/plugins/install_spec.rb
+++ b/spec/bundler/plugins/install_spec.rb
@@ -32,7 +32,8 @@ RSpec.describe "bundler plugin install" do
   it "shows help when --help flag is given" do
     bundle "plugin install --help"
 
-    expect(out).to include("bundle plugin install PLUGINS    # Install the plugin from the source")
+    # The help message defined in ../../lib/bundler/man/bundle-plugin.1.ronn will be output.
+    expect(out).to include("You can install, uninstall, and list plugin(s)")
   end
 
   context "plugin is already installed" do
@@ -84,6 +85,26 @@ RSpec.describe "bundler plugin install" do
     expect(out).to include("Using foo 1.1")
   end
 
+  it "installs when --branch specified" do
+    bundle "plugin install foo --branch main --source #{file_uri_for(gem_repo2)}"
+
+    expect(out).to include("Installed plugin foo")
+  end
+
+  it "installs when --ref specified" do
+    bundle "plugin install foo --ref v1.2.3 --source #{file_uri_for(gem_repo2)}"
+
+    expect(out).to include("Installed plugin foo")
+  end
+
+  it "raises error when both --branch and --ref options are specified" do
+    bundle "plugin install foo --source #{file_uri_for(gem_repo2)} --branch main --ref v1.2.3", :raise_on_error => false
+
+    expect(out).not_to include("Installed plugin foo")
+
+    expect(err).to include("You cannot specify `--branch` and `--ref` at the same time.")
+  end
+
   it "works with different load paths" do
     build_repo2 do
       build_plugin "testing" do |s|