Merge pull request #1998 from reitermarkus/spec-bottle-collector

Convert Utils::Bottles::Collector test to spec.

Author: reitermarkus

Library/Homebrew/test/bottle_collector_test.rb

@@ -0,0 +1,31 @@
+require "utils/bottles"
+
+describe Utils::Bottles::Collector do
+  describe "#fetch_checksum_for" do
+    it "returns passed tags" do
+      subject[:lion] = "foo"
+      subject[:mountain_lion] = "bar"
+      expect(subject.fetch_checksum_for(:mountain_lion)).to eq(["bar", :mountain_lion])
+    end
+
+    it "returns nil if empty" do
+      expect(subject.fetch_checksum_for(:foo)).to be nil
+    end
+
+    it "returns nil when there is no match" do
+      subject[:lion] = "foo"
+      expect(subject.fetch_checksum_for(:foo)).to be nil
+    end
+
+    it "returns nil when there is no match and later tag is present" do
+      subject[:lion_or_later] = "foo"
+      expect(subject.fetch_checksum_for(:foo)).to be nil
+    end
+
+    it "prefers exact matches" do
+      subject[:lion_or_later] = "foo"
+      subject[:mountain_lion] = "bar"
+      expect(subject.fetch_checksum_for(:mountain_lion)).to eq(["bar", :mountain_lion])
+    end
+  end
+end