Add an model_subclass generator.

This generator creates a new model as a subclass of an existing model and the unit test for that model.  Lets users avoid having to manually delete the fixtures and migration or remember to pass those arguments.

[#2702 state:committed]

Signed-off-by: Michael Koziarski <michael@koziarski.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/railties/test/generators/rails_model_subclass_generator_test.rb b/railties/test/generators/rails_model_subclass_generator_test.rb
new file mode 100644
index 0000000000..30066b5a3c
--- /dev/null
+++ b/railties/test/generators/rails_model_subclass_generator_test.rb
@@ -0,0 +1,15 @@
+require 'generators/generator_test_helper'
+
+class RailsModelSubclassGeneratorTest < GeneratorTestCase
+
+  def test_model_subclass_generates_resources
+    run_generator('model_subclass', %w(Car Product))
+
+    assert_generated_model_for :car, "Product"
+    assert_generated_unit_test_for :car
+  end
+
+  def test_model_subclass_must_have_a_parent_class_name
+    assert_raise(Rails::Generator::UsageError) { run_generator('model_subclass', %w(Car)) }
+  end
+end
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