1 files changed, 39 insertions, 0 deletions
diff --git a/activemodel/test/cases/type/boolean_test.rb b/activemodel/test/cases/type/boolean_test.rb
new file mode 100644
index 0000000000..92e5aebfb7
--- /dev/null
+++ b/activemodel/test/cases/type/boolean_test.rb
@@ -0,0 +1,39 @@
+require "cases/helper"
+require "active_model/type"
+
+module ActiveModel
+  module Type
+    class BooleanTest < ActiveModel::TestCase
+      def test_type_cast_boolean
+        type = Type::Boolean.new
+        assert type.cast("").nil?
+        assert type.cast(nil).nil?
+
+        assert type.cast(true)
+        assert type.cast(1)
+        assert type.cast("1")
+        assert type.cast("t")
+        assert type.cast("T")
+        assert type.cast("true")
+        assert type.cast("TRUE")
+        assert type.cast("on")
+        assert type.cast("ON")
+        assert type.cast(" ")
+        assert type.cast("\u3000\r\n")
+        assert type.cast("\u0000")
+        assert type.cast("SOMETHING RANDOM")
+
+        # explicitly check for false vs nil
+        assert_equal false, type.cast(false)
+        assert_equal false, type.cast(0)
+        assert_equal false, type.cast("0")
+        assert_equal false, type.cast("f")
+        assert_equal false, type.cast("F")
+        assert_equal false, type.cast("false")
+        assert_equal false, type.cast("FALSE")
+        assert_equal false, type.cast("off")
+        assert_equal false, type.cast("OFF")
+      end
+    end
+  end
+end