1 files changed, 114 insertions, 0 deletions
diff --git a/activerecord/test/cases/type/integer_test.rb b/activerecord/test/cases/type/integer_test.rb
new file mode 100644
index 0000000000..ff956b7680
--- /dev/null
+++ b/activerecord/test/cases/type/integer_test.rb
@@ -0,0 +1,114 @@
+require "cases/helper"
+require "models/company"
+
+module ActiveRecord
+  module Type
+    class IntegerTest < ActiveRecord::TestCase
+      test "simple values" do
+        type = Type::Integer.new
+        assert_equal 1, type.type_cast_from_user(1)
+        assert_equal 1, type.type_cast_from_user('1')
+        assert_equal 1, type.type_cast_from_user('1ignore')
+        assert_equal 0, type.type_cast_from_user('bad1')
+        assert_equal 0, type.type_cast_from_user('bad')
+        assert_equal 1, type.type_cast_from_user(1.7)
+        assert_equal 0, type.type_cast_from_user(false)
+        assert_equal 1, type.type_cast_from_user(true)
+        assert_nil type.type_cast_from_user(nil)
+      end
+
+      test "random objects cast to nil" do
+        type = Type::Integer.new
+        assert_nil type.type_cast_from_user([1,2])
+        assert_nil type.type_cast_from_user({1 => 2})
+        assert_nil type.type_cast_from_user((1..2))
+      end
+
+      test "casting ActiveRecord models" do
+        type = Type::Integer.new
+        firm = Firm.create(:name => 'Apple')
+        assert_nil type.type_cast_from_user(firm)
+      end
+
+      test "casting objects without to_i" do
+        type = Type::Integer.new
+        assert_nil type.type_cast_from_user(::Object.new)
+      end
+
+      test "casting nan and infinity" do
+        type = Type::Integer.new
+        assert_nil type.type_cast_from_user(::Float::NAN)
+        assert_nil type.type_cast_from_user(1.0/0.0)
+      end
+
+      test "casting booleans for database" do
+        type = Type::Integer.new
+        assert_equal 1, type.type_cast_for_database(true)
+        assert_equal 0, type.type_cast_for_database(false)
+      end
+
+      test "changed?" do
+        type = Type::Integer.new
+
+        assert type.changed?(5, 5, '5wibble')
+        assert_not type.changed?(5, 5, '5')
+        assert_not type.changed?(5, 5, '5.0')
+        assert_not type.changed?(-5, -5, '-5')
+        assert_not type.changed?(-5, -5, '-5.0')
+        assert_not type.changed?(nil, nil, nil)
+      end
+
+      test "values below int min value are out of range" do
+        assert_raises(::RangeError) do
+          Integer.new.type_cast_from_user("-2147483649")
+        end
+      end
+
+      test "values above int max value are out of range" do
+        assert_raises(::RangeError) do
+          Integer.new.type_cast_from_user("2147483648")
+        end
+      end
+
+      test "very small numbers are out of range" do
+        assert_raises(::RangeError) do
+          Integer.new.type_cast_from_user("-9999999999999999999999999999999")
+        end
+      end
+
+      test "very large numbers are out of range" do
+        assert_raises(::RangeError) do
+          Integer.new.type_cast_from_user("9999999999999999999999999999999")
+        end
+      end
+
+      test "normal numbers are in range" do
+        type = Integer.new
+        assert_equal(0, type.type_cast_from_user("0"))
+        assert_equal(-1, type.type_cast_from_user("-1"))
+        assert_equal(1, type.type_cast_from_user("1"))
+      end
+
+      test "int max value is in range" do
+        assert_equal(2147483647, Integer.new.type_cast_from_user("2147483647"))
+      end
+
+      test "int min value is in range" do
+        assert_equal(-2147483648, Integer.new.type_cast_from_user("-2147483648"))
+      end
+
+      test "columns with a larger limit have larger ranges" do
+        type = Integer.new(limit: 8)
+
+        assert_equal(9223372036854775807, type.type_cast_from_user("9223372036854775807"))
+        assert_equal(-9223372036854775808, type.type_cast_from_user("-9223372036854775808"))
+        assert_raises(::RangeError) do
+          type.type_cast_from_user("-9999999999999999999999999999999")
+        end
+        assert_raises(::RangeError) do
+          type.type_cast_from_user("9999999999999999999999999999999")
+        end
+      end
+    end
+  end
+end