audit: Add tests for audit rules ported from line_problems method to rubocops

Library/Homebrew/test/rubocops/lines_cop_spec.rb

@@ -51,3 +51,154 @@ describe RuboCop::Cop::FormulaAudit::Lines do
     end
   end
 end
+
+describe RuboCop::Cop::FormulaAudit::ClassInheritance do
+  subject(:cop) { described_class.new }
+
+  context "When auditing lines" do
+    it "with no space in class inheritance" do
+      source = <<-EOS.undent
+        class Foo<Formula
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+        end
+      EOS
+
+      expected_offenses = [{  message: "Use a space in class inheritance: class Foo < Formula",
+                              severity: :convention,
+                              line: 1,
+                              column: 10,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+  end
+end
+
+describe RuboCop::Cop::FormulaAudit::Comments do
+  subject(:cop) { described_class.new }
+
+  context "When auditing formula" do
+    it "with commented cmake call" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+          # system "cmake", ".", *std_cmake_args
+        end
+      EOS
+
+      expected_offenses = [{  message: "Please remove default template comments",
+                              severity: :convention,
+                              line: 4,
+                              column: 2,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+
+    it "with default template comments" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          # PLEASE REMOVE
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+        end
+      EOS
+
+      expected_offenses = [{  message: "Please remove default template comments",
+                              severity: :convention,
+                              line: 2,
+                              column: 2,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+
+    it "with commented out depends_on" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+          # depends_on "foo"
+        end
+      EOS
+
+      expected_offenses = [{  message: 'Commented-out dependency "foo"',
+                              severity: :convention,
+                              line: 4,
+                              column: 2,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+  end
+end
+
+describe RuboCop::Cop::FormulaAudit::Miscellaneous do
+  subject(:cop) { described_class.new }
+
+  context "When auditing formula" do
+    it "with FileUtils" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+          FileUtils.mv "hello"
+        end
+      EOS
+
+      expected_offenses = [{  message: "Don't need 'FileUtils.' before mv",
+                              severity: :convention,
+                              line: 4,
+                              column: 2,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+
+    it "with long inreplace block vars" do
+      source = <<-EOS.undent
+        class Foo < Formula
+          desc "foo"
+          url 'http://example.com/foo-1.0.tgz'
+          inreplace "foo" do |longvar|
+            somerandomCall(longvar)
+          end
+        end
+      EOS
+
+      expected_offenses = [{  message: "\"inreplace <filenames> do |s|\" is preferred over \"|longvar|\".",
+                              severity: :convention,
+                              line: 4,
+                              column: 2,
+                              source: source }]
+
+      inspect_source(cop, source)
+
+      expected_offenses.zip(cop.offenses).each do |expected, actual|
+        expect_offense(expected, actual)
+      end
+    end
+  end
+end