Convert Cat test to spec.

1 files changed, 59 insertions, 0 deletions

diff --git a/Library/Homebrew/cask/spec/cask/cli/cat_spec.rb b/Library/Homebrew/cask/spec/cask/cli/cat_spec.rb
new file mode 100644
index 000000000..7517c1b5c
--- /dev/null
+++ b/Library/Homebrew/cask/spec/cask/cli/cat_spec.rb
@@ -0,0 +1,59 @@
+require "spec_helper"
+
+describe Hbc::CLI::Cat do
+  describe "given a basic Cask" do
+    let(:expected_output) {
+      <<-EOS.undent
+        cask 'basic-cask' do
+          version '1.2.3'
+          sha256 '8c62a2b791cf5f0da6066a0a4b6e85f62949cd60975da062df44adf887f4370b'
+
+          url 'http://example.com/TestCask.dmg'
+          homepage 'http://example.com/'
+
+          app 'TestCask.app'
+        end
+      EOS
+    }
+
+    it "displays the Cask file content about the specified Cask" do
+      expect {
+        Hbc::CLI::Cat.run("basic-cask")
+      }.to output(expected_output).to_stdout
+    end
+
+    it "throws away additional Cask arguments and uses the first" do
+      expect {
+        Hbc::CLI::Cat.run("basic-cask", "local-caffeine")
+      }.to output(expected_output).to_stdout
+    end
+
+    it "throws away stray options" do
+      expect {
+        Hbc::CLI::Cat.run("--notavalidoption", "basic-cask")
+      }.to output(expected_output).to_stdout
+    end
+  end
+
+  it "raises an exception when the Cask does not exist" do
+    expect {
+      Hbc::CLI::Cat.run("notacask")
+    }.to raise_error(Hbc::CaskUnavailableError)
+  end
+
+  describe "when no Cask is specified" do
+    it "raises an exception" do
+      expect {
+        Hbc::CLI::Cat.run
+      }.to raise_error(Hbc::CaskUnspecifiedError)
+    end
+  end
+
+  describe "when no Cask is specified, but an invalid option" do
+    it "raises an exception" do
+      expect {
+        Hbc::CLI::Cat.run("--notavalidoption")
+      }.to raise_error(Hbc::CaskUnspecifiedError)
+    end
+  end
+end