Simplify Tap#custom_remote?.

Library/Homebrew/tap.rb

@@ -523,10 +523,11 @@ def uninstall(manual: false)
  end
 
  # True if the {#remote} of {Tap} is customized.
+ sig { returns(T::Boolean) }
  def custom_remote?
- return true unless remote
+ return true unless (remote = self.remote)
 
- remote.casecmp(default_remote).nonzero?
+ !remote.casecmp(default_remote).zero?
  end
 
  # Path to the directory of all {Formula} files for this {Tap}.

Library/Homebrew/test/tap_spec.rb

@@ -258,6 +258,37 @@ def setup_completion(link:)
  end
  end
 
+ describe "#custom_remote?" do
+ subject(:tap) { described_class.new("Homebrew", "services") }
+
+ let(:remote) { nil }
+
+ before do
+ tap.path.mkpath
+ system "git", "-C", tap.path, "init"
+ system "git", "-C", tap.path, "remote", "add", "origin", remote if remote
+ end
+
+ context "if no remote is available" do
+ it "returns true" do
+ expect(tap.remote).to be_nil
+ expect(tap.custom_remote?).to be true
+ end
+ end
+
+ context "when using the default remote" do
+ let(:remote) { "https://github.com/Homebrew/homebrew-services" }
+
+ its(:custom_remote?) { is_expected.to be false }
+ end
+
+ context "when using a non-default remote" do
+ let(:remote) { "[email protected]:Homebrew/homebrew-services" }
+
+ its(:custom_remote?) { is_expected.to be true }
+ end
+ end
+
  specify "Git variant" do
  touch path/"README"
  setup_git_repo