1 files changed, 91 insertions, 0 deletions
diff --git a/Library/Homebrew/test/cask/verify/checksum_spec.rb b/Library/Homebrew/test/cask/verify/checksum_spec.rb
new file mode 100644
index 000000000..d803c566d
--- /dev/null
+++ b/Library/Homebrew/test/cask/verify/checksum_spec.rb
@@ -0,0 +1,91 @@
+describe Hbc::Verify::Checksum do
+  let(:cask) { double("cask") }
+  let(:downloaded_path) { double("downloaded_path") }
+  let(:verification) { described_class.new(cask, downloaded_path) }
+
+  before do
+    allow(cask).to receive(:sha256).and_return(sha256)
+  end
+
+  around do |example|
+    shutup { example.run }
+  end
+
+  describe ".me?" do
+    subject { described_class.me?(cask) }
+
+    context "sha256 is :no_check" do
+      let(:sha256) { :no_check }
+
+      it { is_expected.to be false }
+    end
+
+    context "sha256 is nil" do
+      let(:sha256) { nil }
+
+      it { is_expected.to be true }
+    end
+
+    context "sha256 is empty" do
+      let(:sha256) { "" }
+
+      it { is_expected.to be true }
+    end
+
+    context "sha256 is a valid shasum" do
+      let(:sha256) { "deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef" }
+
+      it { is_expected.to be true }
+    end
+  end
+
+  describe "#verify" do
+    subject { verification.verify }
+
+    let(:computed) { "deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef" }
+
+    before do
+      allow(verification).to receive(:computed).and_return(computed)
+    end
+
+    context "sha256 matches computed" do
+      let(:sha256) { computed }
+
+      it "does not raise an error" do
+        expect { subject }.not_to raise_error
+      end
+    end
+
+    context "sha256 is :no_check" do
+      let(:sha256) { :no_check }
+
+      it "does not raise an error" do
+        expect { subject }.not_to raise_error
+      end
+    end
+
+    context "sha256 does not match computed" do
+      let(:sha256) { "d3adb33fd3adb33fd3adb33fd3adb33fd3adb33fd3adb33fd3adb33fd3adb33f" }
+
+      it "raises an error" do
+        expect { subject }.to raise_error(Hbc::CaskSha256MismatchError)
+      end
+    end
+
+    context "sha256 is nil" do
+      let(:sha256) { nil }
+
+      it "raises an error" do
+        expect { subject }.to raise_error(Hbc::CaskSha256MissingError)
+      end
+    end
+
+    context "sha256 is empty" do
+      let(:sha256) { "" }
+
+      it "raises an error" do
+        expect { subject }.to raise_error(Hbc::CaskSha256MissingError)
+      end
+    end
+  end
+end