From 15bc09d9160ff90668b4dd0cbf902ccc86206ab5 Mon Sep 17 00:00:00 2001
From: Sam Ford <1584702+samford@users.noreply.github.com>
Date: Sat, 27 Jun 2020 21:03:16 -0400
Subject: [PATCH] version: add empty? method

---
 Library/Homebrew/test/version_spec.rb | 10 ++++++++++
 Library/Homebrew/version.rb           |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/Library/Homebrew/test/version_spec.rb b/Library/Homebrew/test/version_spec.rb
index 60128a8a2c..03b9ab7e88 100644
--- a/Library/Homebrew/test/version_spec.rb
+++ b/Library/Homebrew/test/version_spec.rb
@@ -173,6 +173,16 @@ describe Version do
     expect(versions.sort_by { |v| described_class.create(v) }).to eq(versions)
   end
 
+  describe "#empty?" do
+    it "returns true if version is empty" do
+      expect(described_class.create("").empty?).to eq(true)
+    end
+
+    it "returns false if version is not empty" do
+      expect(described_class.create("1.2.3").empty?).to eq(false)
+    end
+  end
+
   specify "hash equality" do
     v1 = described_class.create("0.1.0")
     v2 = described_class.create("0.1.0")
diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index 27116a243e..275c99f6e9 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -429,6 +429,10 @@ class Version
   end
   alias eql? ==
 
+  def empty?
+    version.empty?
+  end
+
   def hash
     version.hash
   end