Added tests fir utils/svn

Library/Homebrew/test/utils/svn_spec.rb

@@ -0,0 +1,33 @@
+require "utils/svn"
+
+describe Utils do
+  describe "#self.svn_available?" do
+    it "processes value when @svn is not defined" do
+      expect(described_class.svn_available?).to be_truthy
+    end
+
+    it "returns value of @svn when @svn is defined" do
+      described_class.instance_variable_set(:@svn, true)
+      expect(described_class.svn_available?).to be_truthy
+    end
+  end
+
+  describe "#self.svn_remote_exists" do
+    let(:url) { "https://dl.bintray.com/homebrew/mirror/" }
+
+    it "gives true when @svn is false" do
+      allow_any_instance_of(Process::Status).to receive(:success?).and_return(false)
+      described_class.instance_variable_set(:@svn, false)
+      expect(described_class.svn_remote_exists(url)).to be_truthy
+    end
+
+    it "gives false when url is obscure" do
+      expect(described_class.svn_remote_exists(url)).to be_falsy
+    end
+
+    it "gives true when quiet_system succeeds with given url" do
+      allow_any_instance_of(Process::Status).to receive(:success?).and_return(true)
+      expect(described_class.svn_remote_exists(url)).to be_truthy
+    end
+  end
+end