Streamline new tests for sum filter

lib/liquid/standardfilters.rb

@@ -895,6 +895,7 @@ def sum(input, property = nil)
       result = InputIterator.new(values_for_sum, context).sum do |item|
         Utils.to_number(item)
       end
+
       result.is_a?(BigDecimal) ? result.to_f : result
     end
 

test/integration/standard_filter_test.rb

@@ -946,21 +946,6 @@ def test_sum_with_numeric_strings
     end
   end
 
-  def test_sum_with_floats
-    input = [0.1, 0.2, 0.3]
-    assert_equal(0.6, @filters.sum(input))
-  end
-
-  def test_sum_with_negative_float
-    input = [0.1, 0.2, -0.3]
-    assert_equal(0.0, @filters.sum(input))
-  end
-
-  def test_sum_with_float_strings
-    input = [0.1, "0.2", "0.3"]
-    assert_equal(0.6, @filters.sum(input))
-  end
-
   def test_sum_with_nested_arrays
     input = [1, [2, [3, 4]]]
 
@@ -1009,36 +994,40 @@ def test_sum_with_property_calls_to_liquid_on_property_values
     assert(t.foo > 0)
   end
 
-  def test_render_sum_of_floats
-    assert_equal(Liquid::Template.parse('{{ foo | sum }}').render("foo" => [0.1, 0.2, 0.3]), "0.6")
-  end
-
-  def test_render_sum_of_negative_floats
-    assert_equal(Liquid::Template.parse('{{ foo | sum }}').render("foo" => [0.1, -0.2, 0.3]), "0.2")
+  def test_sum_of_floats
+    input = [0.1, 0.2, 0.3]
+    assert_equal(0.6, @filters.sum(input))
+    assert_template_result("0.6", "{{ input | sum }}", { "input" => input })
   end
 
-  def test_render_sum_negative_float_result
-    assert_equal(Liquid::Template.parse('{{ foo | sum }}').render("foo" => [0.1, -0.2, -0.3]), "-0.4")
+  def test_sum_of_negative_floats
+    input = [0.1, 0.2, -0.3]
+    assert_equal(0.0, @filters.sum(input))
+    assert_template_result("0.0", "{{ input | sum }}", { "input" => input })
   end
 
-  def test_render_sum_float_zero_result
-    assert_equal(Liquid::Template.parse('{{ foo | sum }}').render("foo" => [0.1, 0.2, -0.3]), "0.0")
+  def test_sum_with_float_strings
+    input = [0.1, "0.2", "0.3"]
+    assert_equal(0.6, @filters.sum(input))
+    assert_template_result("0.6", "{{ input | sum }}", { "input" => input })
   end
 
-  def test_render_sum_with_floats_and_indexable_map_values
-    input = [{ "quantity" => 1 }, { "quantity" => 0.2, "weight" => -0.3 }, { "weight" => 0.4 }]
-    assert_equal(Liquid::Template.parse('{{ foo | sum }}').render("foo" => input), "0")
-    assert_equal(Liquid::Template.parse('{{ foo | sum: "quantity" }}').render("foo" => input), "1.2")
-    assert_equal(Liquid::Template.parse('{{ foo | sum: "weight" }}').render("foo" => input), "0.1")
-    assert_equal(Liquid::Template.parse('{{ foo | sum: "subtotal" }}').render("foo" => input), "0")
+  def test_sum_resulting_in_negative_float
+    input = [0.1, -0.2, -0.3]
+    assert_equal(-0.4, @filters.sum(input))
+    assert_template_result("-0.4", "{{ input | sum }}", { "input" => input })
   end
 
   def test_sum_with_floats_and_indexable_map_values
     input = [{ "quantity" => 1 }, { "quantity" => 0.2, "weight" => -0.3 }, { "weight" => 0.4 }]
-    assert_equal(0, @filters.sum(input))
+    assert_equal(0.0, @filters.sum(input))
     assert_equal(1.2, @filters.sum(input, "quantity"))
     assert_equal(0.1, @filters.sum(input, "weight"))
-    assert_equal(0, @filters.sum(input, "subtotal"))
+    assert_equal(0.0, @filters.sum(input, "subtotal"))
+    assert_template_result("0", "{{ input | sum }}", { "input" => input })
+    assert_template_result("1.2", "{{ input | sum: 'quantity' }}", { "input" => input })
+    assert_template_result("0.1", "{{ input | sum: 'weight' }}", { "input" => input })
+    assert_template_result("0", "{{ input | sum: 'subtotal' }}", { "input" => input })
   end
 
   private