Change typecasting unit tests to test type objects directly

There's no longer type casting behavior of any kind inside of `Column`
for the general case. These tests can be made clearer by testing the
type objects directly.

1 files changed, 159 insertions, 0 deletions

diff --git a/activerecord/test/cases/types_test.rb b/activerecord/test/cases/types_test.rb
new file mode 100644
index 0000000000..5d5f442d3a
--- /dev/null
+++ b/activerecord/test/cases/types_test.rb
@@ -0,0 +1,159 @@
+require "cases/helper"
+require 'models/company'
+
+module ActiveRecord
+  module ConnectionAdapters
+    class TypesTest < ActiveRecord::TestCase
+      def test_type_cast_boolean
+        type = Type::Boolean.new
+        assert type.type_cast('').nil?
+        assert type.type_cast(nil).nil?
+
+        assert type.type_cast(true)
+        assert type.type_cast(1)
+        assert type.type_cast('1')
+        assert type.type_cast('t')
+        assert type.type_cast('T')
+        assert type.type_cast('true')
+        assert type.type_cast('TRUE')
+        assert type.type_cast('on')
+        assert type.type_cast('ON')
+
+        # explicitly check for false vs nil
+        assert_equal false, type.type_cast(false)
+        assert_equal false, type.type_cast(0)
+        assert_equal false, type.type_cast('0')
+        assert_equal false, type.type_cast('f')
+        assert_equal false, type.type_cast('F')
+        assert_equal false, type.type_cast('false')
+        assert_equal false, type.type_cast('FALSE')
+        assert_equal false, type.type_cast('off')
+        assert_equal false, type.type_cast('OFF')
+        assert_equal false, type.type_cast(' ')
+        assert_equal false, type.type_cast("\u3000\r\n")
+        assert_equal false, type.type_cast("\u0000")
+        assert_equal false, type.type_cast('SOMETHING RANDOM')
+      end
+
+      def test_type_cast_string
+        type = Type::String.new
+        assert_equal "1", type.type_cast(true)
+        assert_equal "0", type.type_cast(false)
+        assert_equal "123", type.type_cast(123)
+      end
+
+      def test_type_cast_integer
+        type = Type::Integer.new
+        assert_equal 1, type.type_cast(1)
+        assert_equal 1, type.type_cast('1')
+        assert_equal 1, type.type_cast('1ignore')
+        assert_equal 0, type.type_cast('bad1')
+        assert_equal 0, type.type_cast('bad')
+        assert_equal 1, type.type_cast(1.7)
+        assert_equal 0, type.type_cast(false)
+        assert_equal 1, type.type_cast(true)
+        assert_nil type.type_cast(nil)
+      end
+
+      def test_type_cast_non_integer_to_integer
+        type = Type::Integer.new
+        assert_nil type.type_cast([1,2])
+        assert_nil type.type_cast({1 => 2})
+        assert_nil type.type_cast((1..2))
+      end
+
+      def test_type_cast_activerecord_to_integer
+        type = Type::Integer.new
+        firm = Firm.create(:name => 'Apple')
+        assert_nil type.type_cast(firm)
+      end
+
+      def test_type_cast_object_without_to_i_to_integer
+        type = Type::Integer.new
+        assert_nil type.type_cast(Object.new)
+      end
+
+      def test_type_cast_nan_and_infinity_to_integer
+        type = Type::Integer.new
+        assert_nil type.type_cast(Float::NAN)
+        assert_nil type.type_cast(1.0/0.0)
+      end
+
+      def test_type_cast_float
+        type = Type::Float.new
+        assert_equal 1.0, type.type_cast("1")
+      end
+
+      def test_type_cast_decimal
+        type = Type::Decimal.new
+        assert_equal BigDecimal.new("0"), type.type_cast(BigDecimal.new("0"))
+        assert_equal BigDecimal.new("123"), type.type_cast(123.0)
+        assert_equal BigDecimal.new("1"), type.type_cast(:"1")
+      end
+
+      def test_type_cast_binary
+        type = Type::Binary.new
+        assert_equal nil, type.type_cast(nil)
+        assert_equal "1", type.type_cast("1")
+        assert_equal 1, type.type_cast(1)
+      end
+
+      def test_type_cast_time
+        type = Type::Time.new
+        assert_equal nil, type.type_cast(nil)
+        assert_equal nil, type.type_cast('')
+        assert_equal nil, type.type_cast('ABC')
+
+        time_string = Time.now.utc.strftime("%T")
+        assert_equal time_string, type.type_cast(time_string).strftime("%T")
+      end
+
+      def test_type_cast_datetime_and_timestamp
+        type = Type::DateTime.new
+        assert_equal nil, type.type_cast(nil)
+        assert_equal nil, type.type_cast('')
+        assert_equal nil, type.type_cast('  ')
+        assert_equal nil, type.type_cast('ABC')
+
+        datetime_string = Time.now.utc.strftime("%FT%T")
+        assert_equal datetime_string, type.type_cast(datetime_string).strftime("%FT%T")
+      end
+
+      def test_type_cast_date
+        type = Type::Date.new
+        assert_equal nil, type.type_cast(nil)
+        assert_equal nil, type.type_cast('')
+        assert_equal nil, type.type_cast(' ')
+        assert_equal nil, type.type_cast('ABC')
+
+        date_string = Time.now.utc.strftime("%F")
+        assert_equal date_string, type.type_cast(date_string).strftime("%F")
+      end
+
+      def test_type_cast_duration_to_integer
+        type = Type::Integer.new
+        assert_equal 1800, type.type_cast(30.minutes)
+        assert_equal 7200, type.type_cast(2.hours)
+      end
+
+      def test_string_to_time_with_timezone
+        [:utc, :local].each do |zone|
+          with_timezone_config default: zone do
+            type = Type::DateTime.new
+            assert_equal Time.utc(2013, 9, 4, 0, 0, 0), type.type_cast("Wed, 04 Sep 2013 03:00:00 EAT")
+          end
+        end
+      end
+
+      if current_adapter?(:SQLite3Adapter)
+        def test_binary_encoding
+          type = SQLite3Binary.new
+          utf8_string = "a string".encode(Encoding::UTF_8)
+          type_cast = type.type_cast(utf8_string)
+
+          assert_equal Encoding::ASCII_8BIT, type_cast.encoding
+        end
+      end
+    end
+  end
+end