Add failing test for OrderedOptions

spec/support/shared_examples/active_support.rb

@@ -64,4 +64,46 @@
       end
     end
   end
+
+  context "when comparing OrderedOptions and Hash instances",
+          active_record: true do
+    it "produces the correct failure message when used in the positive" do
+      as_both_colored_and_uncolored do |color_enabled|
+        snippet = <<~RUBY
+          expected = {beep: :bip}
+          actual = ::ActiveSupport::OrderedOptions[beep: :boop]
+          expect(expected).to eq(actual)
+        RUBY
+        program =
+          make_rspec_rails_test_program(snippet, color_enabled: color_enabled)
+
+        expected_output =
+          build_expected_output(
+            color_enabled: color_enabled,
+            snippet: "expect(expected).to eq(actual)",
+            expectation:
+              proc do
+                line do
+                  plain "Expected "
+                  actual "{ beep: :bip }"
+                  plain " to eq "
+                  expected "#<OrderedOptions { beep: :boop }>"
+                  plain "."
+                end
+              end,
+            diff:
+              proc do
+                plain_line "  {"
+                expected_line "-   beep: :boop"
+                actual_line "+   beep: :bip"
+                plain_line "  }"
+              end
+          )
+
+        expect(program).to produce_output_when_run(expected_output).in_color(
+          color_enabled
+        )
+      end
+    end
+  end
 end

spec/unit/active_support/object_inspection_spec.rb

@@ -0,0 +1,62 @@
+require "spec_helper"
+
+RSpec.describe SuperDiff, type: :unit do
+  describe ".inspect_object",
+           "for ActiveSupport objects",
+           active_support: true do
+    context "given an ActiveSupport::OrderedOptions object" do
+      context "given as_lines: false" do
+        it "returns an inspected version of the object" do
+          string =
+            described_class.inspect_object(
+              ::ActiveSupport::OrderedOptions[name: "Bob", age: 42],
+              as_lines: false
+            )
+          expect(string).to eq(%(#<OrderedOptions { name: "Bob", age: 42 }>))
+        end
+      end
+
+      context "given as_lines: true" do
+        it "returns an inspected version of the object as multiple Lines" do
+          tiered_lines =
+            described_class.inspect_object(
+              ::ActiveSupport::OrderedOptions[name: "Bob", age: 42],
+              as_lines: true,
+              type: :delete,
+              indentation_level: 1
+            )
+          expect(tiered_lines).to match(
+            [
+              an_object_having_attributes(
+                type: :delete,
+                indentation_level: 1,
+                value: "#<OrderedOptions {",
+                collection_bookend: :open
+              ),
+              an_object_having_attributes(
+                type: :delete,
+                indentation_level: 2,
+                prefix: "name: ",
+                value: "\"Bob\"",
+                add_comma: true
+              ),
+              an_object_having_attributes(
+                type: :delete,
+                indentation_level: 2,
+                prefix: "age: ",
+                value: "42",
+                add_comma: false
+              ),
+              an_object_having_attributes(
+                type: :delete,
+                indentation_level: 1,
+                value: "}>",
+                collection_bookend: :close
+              )
+            ]
+          )
+        end
+      end
+    end
+  end
+end