1 files changed, 156 insertions, 0 deletions
diff --git a/test/ruby/test_name_error.rb b/test/ruby/test_name_error.rb
new file mode 100644
index 0000000000..f0402de4b9
--- /dev/null
+++ b/test/ruby/test_name_error.rb
@@ -0,0 +1,156 @@
+require 'test/unit'
+
+class TestNameError < Test::Unit::TestCase
+  def test_new_default
+    error = NameError.new
+    assert_equal("NameError", error.message)
+  end
+
+  def test_new_message
+    error = NameError.new("Message")
+    assert_equal("Message", error.message)
+  end
+
+  def test_new_name
+    error = NameError.new("Message")
+    assert_nil(error.name)
+
+    error = NameError.new("Message", :foo)
+    assert_equal(:foo, error.name)
+  end
+
+  def test_new_receiver
+    receiver = Object.new
+
+    error = NameError.new
+    assert_raise(ArgumentError) {error.receiver}
+    assert_equal("NameError", error.message)
+
+    error = NameError.new(receiver: receiver)
+    assert_equal(["NameError", receiver],
+                 [error.message, error.receiver])
+
+    error = NameError.new("Message", :foo, receiver: receiver)
+    assert_equal(["Message", receiver, :foo],
+                 [error.message, error.receiver, error.name])
+  end
+
+  PrettyObject =
+    Class.new(BasicObject) do
+      alias object_id __id__
+      def pretty_inspect; "`obj'"; end
+      alias inspect pretty_inspect
+    end
+
+  def test_info_const
+    obj = PrettyObject.new
+
+    e = assert_raise(NameError) {
+      obj.instance_eval("Object")
+    }
+    assert_equal(:Object, e.name)
+
+    e = assert_raise(NameError) {
+      BasicObject::X
+    }
+    assert_same(BasicObject, e.receiver)
+    assert_equal(:X, e.name)
+  end
+
+  def test_info_const_name
+    mod = Module.new do
+      def self.name
+        "ModuleName"
+      end
+
+      def self.inspect
+        raise "<unusable info>"
+      end
+    end
+    assert_raise_with_message(NameError, /ModuleName/) {mod::DOES_NOT_EXIST}
+  end
+
+  def test_info_method
+    obj = PrettyObject.new
+
+    e = assert_raise(NameError) {
+      obj.instance_eval {foo}
+    }
+    assert_equal(:foo, e.name)
+    assert_same(obj, e.receiver)
+
+    e = assert_raise(NoMethodError) {
+      obj.foo(1, 2)
+    }
+    assert_equal(:foo, e.name)
+    assert_equal([1, 2], e.args)
+    assert_same(obj, e.receiver)
+    assert_not_predicate(e, :private_call?)
+
+    e = assert_raise(NoMethodError) {
+      obj.instance_eval {foo(1, 2)}
+    }
+    assert_equal(:foo, e.name)
+    assert_equal([1, 2], e.args)
+    assert_same(obj, e.receiver)
+    assert_predicate(e, :private_call?)
+  end
+
+  def test_info_local_variables
+    obj = PrettyObject.new
+    def obj.test(a, b=nil, *c, &d)
+      e = a
+      1.times {|f| g = foo; g}
+      e
+    end
+
+    e = assert_raise(NameError) {
+      obj.test(3)
+    }
+    assert_equal(:foo, e.name)
+    assert_same(obj, e.receiver)
+    assert_equal(%i[a b c d e f g], e.local_variables.sort)
+  end
+
+  def test_info_method_missing
+    obj = PrettyObject.new
+    def obj.method_missing(*)
+      super
+    end
+
+    e = assert_raise(NoMethodError) {
+      obj.foo(1, 2)
+    }
+    assert_equal(:foo, e.name)
+    assert_equal([1, 2], e.args)
+    assert_same(obj, e.receiver)
+    assert_not_predicate(e, :private_call?)
+
+    e = assert_raise(NoMethodError) {
+      obj.instance_eval {foo(1, 2)}
+    }
+    assert_equal(:foo, e.name)
+    assert_equal([1, 2], e.args)
+    assert_same(obj, e.receiver)
+    assert_predicate(e, :private_call?)
+  end
+
+  def test_info_parent_iseq_mark
+    assert_separately(['-', File.join(__dir__, 'bug-11928.rb')], <<-'end;')
+      -> {require ARGV[0]}.call
+    end;
+  end
+
+  def test_large_receiver_inspect
+    receiver = Class.new do
+      def self.inspect
+        'A' * 120
+      end
+    end
+
+    error = assert_raise(NameError) do
+      receiver::FOO
+    end
+    assert_match(/\Auninitialized constant #{'A' * 120}::FOO$/, error.message)
+  end
+end