1 files changed, 92 insertions, 0 deletions
diff --git a/Library/Homebrew/cask/spec/cask/depends_on_spec.rb b/Library/Homebrew/cask/spec/cask/depends_on_spec.rb
new file mode 100644
index 000000000..078a2bce7
--- /dev/null
+++ b/Library/Homebrew/cask/spec/cask/depends_on_spec.rb
@@ -0,0 +1,92 @@
+require "spec_helper"
+
+# TODO: this test should be named after the corresponding class, once
+#       that class is abstracted from installer.rb
+describe "Satisfy Dependencies and Requirements" do
+  subject {
+    lambda do
+      shutup do
+        Hbc::Installer.new(cask).install
+      end
+    end
+  }
+
+  describe "depends_on cask" do
+    context "when depends_on cask is cyclic" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-cask-cyclic.rb") }
+      it { is_expected.to raise_error(Hbc::CaskCyclicCaskDependencyError) }
+    end
+
+    context do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-cask.rb") }
+      let(:dependency) { Hbc.load(cask.depends_on.cask.first) }
+
+      it "installs the dependency of a Cask and the Cask itself" do
+        expect(subject).not_to raise_error
+        expect(cask).to be_installed
+        expect(dependency).to be_installed
+      end
+    end
+  end
+
+  describe "depends_on macos" do
+    context "given an array" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-macos-array.rb") }
+      it { is_expected.not_to raise_error }
+    end
+
+    context "given a comparisson" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-macos-comparison.rb") }
+      it { is_expected.not_to raise_error }
+    end
+
+    context "given a string" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-macos-string.rb") }
+      it { is_expected.not_to raise_error }
+    end
+
+    context "given a symbol" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-macos-symbol.rb") }
+      it { is_expected.not_to raise_error }
+    end
+
+    context "when not satisfied" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-macos-failure.rb") }
+      it { is_expected.to raise_error(Hbc::CaskError) }
+    end
+  end
+
+  describe "depends_on arch" do
+    context "when satisfied" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-arch.rb") }
+      it { is_expected.not_to raise_error }
+    end
+  end
+
+  describe "depends_on x11" do
+    before(:each) do
+      allow(MacOS::X11).to receive(:installed?).and_return(x11_installed)
+    end
+
+    context "when satisfied" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-x11.rb") }
+      let(:x11_installed) { true }
+
+      it { is_expected.not_to raise_error }
+    end
+
+    context "when not satisfied" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-x11.rb") }
+      let(:x11_installed) { false }
+
+      it { is_expected.to raise_error(Hbc::CaskX11DependencyError) }
+    end
+
+    context "when depends_on x11: false" do
+      let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/with-depends-on-x11-false.rb") }
+      let(:x11_installed) { false }
+
+      it { is_expected.not_to raise_error }
+    end
+  end
+end