test/bundle: improve coverage

Library/Homebrew/test/bundle/brew_services_spec.rb

@@ -46,6 +46,14 @@ RSpec.describe Homebrew::Bundle::BrewServices do
       expect(described_class.started_services).to include("nginx")
     end
 
+    it "runs the service" do
+      allow(described_class).to receive(:started_services).and_return([])
+      expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "services", "run", "nginx",
+                                                        verbose: false).and_return(true)
+      expect(described_class.run("nginx")).to be(true)
+      expect(described_class.started_services).to include("nginx")
+    end
+
     it "restarts the service" do
       allow(described_class).to receive(:started_services).and_return([])
       expect(Homebrew::Bundle).to receive(:system).with(HOMEBREW_BREW_FILE, "services", "restart", "nginx",
@@ -54,4 +62,32 @@ RSpec.describe Homebrew::Bundle::BrewServices do
       expect(described_class.started_services).to include("nginx")
     end
   end
+
+  describe ".versioned_service_file" do
+    let(:foo) do
+      instance_double(
+        Formula,
+        name:       "fooformula",
+        version:    "1.0",
+        rack:       HOMEBREW_CELLAR/"fooformula",
+        plist_name: "homebrew.mxcl.fooformula",
+      )
+    end
+
+    it "returns the versioned service file" do
+      expect(Formula).to receive(:[]).with(foo.name).and_return(foo)
+      expect(Homebrew::Bundle).to receive(:formula_versions_from_env).and_return(foo.name => foo.version)
+
+      prefix = foo.rack/"1.0"
+      allow(FileTest).to receive(:directory?).and_call_original
+      expect(FileTest).to receive(:directory?).with(prefix.to_s).and_return(true)
+
+      service_file = prefix/"#{foo.plist_name}.plist"
+      expect(Homebrew::Services::System).to receive(:launchctl?).and_return(true)
+      allow(FileTest).to receive(:file?).and_call_original
+      expect(FileTest).to receive(:file?).with(service_file.to_s).and_return(true)
+
+      expect(described_class.versioned_service_file(foo.name)).to eq(service_file)
+    end
+  end
 end