audit: Port audit_class to rubocop, add tests and autocorrect

1 files changed, 81 insertions, 0 deletions

diff --git a/Library/Homebrew/test/rubocops/class_cop_spec.rb b/Library/Homebrew/test/rubocops/class_cop_spec.rb
new file mode 100644
index 000000000..676dd4f6e
--- /dev/null
+++ b/Library/Homebrew/test/rubocops/class_cop_spec.rb
@@ -0,0 +1,81 @@
+require "rubocop"
+require "rubocop/rspec/support"
+require_relative "../../extend/string"
+require_relative "../../rubocops/class_cop"
+
+describe RuboCop::Cop::FormulaAudit::ClassName do
+  subject(:cop) { described_class.new }
+
+  context "When auditing formula" do
+    it "with deprecated inheritance" do
+      formulas = [{
+        "class" => "GithubGistFormula",
+      }, {
+        "class" => "ScriptFileFormula",
+      }, {
+        "class" => "AmazonWebServicesFormula",
+      }]
+
+      formulas.each do |formula|
+        source = <<-EOS.undent
+        class Foo < #{formula["class"]}
+          url 'http://example.com/foo-1.0.tgz'
+        end
+        EOS
+
+        expected_offenses = [{  message: "#{formula["class"]} is deprecated, use Formula instead",
+                                severity: :convention,
+                                line: 1,
+                                column: 12,
+                                source: source }]
+
+        inspect_source(cop, source)
+
+        expected_offenses.zip(cop.offenses.reverse).each do |expected, actual|
+          expect_offense(expected, actual)
+        end
+      end
+    end
+
+    it "with deprecated inheritance and autocorrect" do
+      source = <<-EOS.undent
+        class Foo < AmazonWebServicesFormula
+          url 'http://example.com/foo-1.0.tgz'
+        end
+      EOS
+      corrected_source = <<-EOS.undent
+        class Foo < Formula
+          url 'http://example.com/foo-1.0.tgz'
+        end
+      EOS
+
+      new_source = autocorrect_source(cop, source)
+      expect(new_source).to eq(corrected_source)
+    end
+  end
+end
+
+describe RuboCop::Cop::FormulaAuditStrict::Test do
+  subject(:cop) { described_class.new }
+
+  context "When auditing formula" do
+    it "without a test block" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          url 'http://example.com/foo-1.0.tgz'
+        end
+      EOS
+      expected_offenses = [{  message: described_class::MSG,
+                              severity: :convention,
+                              line: 1,
+                              column: 0,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+  end
+end