Fix sort_numeric with string representation of floats

lib/liquid2/filters/sort.rb

@@ -3,6 +3,8 @@
 module Liquid2
   # Liquid filters and helper methods.
   module Filters
+    INFINITY_ARRAY = [Float::INFINITY].freeze # : [Float]
+
     def self.sort(left, key = nil, context:)
       left = Liquid2::Filters.to_enumerable(left)
 
@@ -82,12 +84,11 @@ def self.numeric_compare(left, right)
     end
 
     def self.ints(obj)
-      case obj
-      when Integer, Float, BigDecimal
+      if obj.is_a?(Integer) || obj.is_a?(Float) || obj.is_a?(BigDecimal)
         [obj]
       else
-        numeric = obj.to_s.scan(/-?\d+/)
-        return [Float::INFINITY] if numeric.empty?
+        numeric = obj.to_s.scan(/(?<=\.)0+|-?\d+/)
+        return INFINITY_ARRAY if numeric.empty?
 
         numeric.map(&:to_i)
       end

sig/liquid2.rbs

@@ -1760,6 +1760,8 @@ module Liquid2
 
     def self.nil_safe_casecmp: (untyped a, untyped b) -> (0 | 1 | -1)
 
+    INFINITY_ARRAY: [Float]
+
     def self.numeric_compare: (untyped left, untyped right) -> (0 | 1 | -1)
 
     def self.ints: (untyped obj) -> Array[(Integer | Float | BigDecimal)]

test/test_sort_numeric.rb

@@ -33,6 +33,13 @@ def test_array_of_floats
     assert_equal([1.01, 1.1, 2.3, 3.5, 10.1], sorted)
   end
 
+  def test_array_of_string_floats
+    left = ["10.1", "3.5", "2.3", "1.1", "1.01"]
+    sorted = Liquid2::Filters.sort_numeric(left, context: MOCK_RENDER_CONTEXT)
+
+    assert_equal(["1.01", "1.1", "2.3", "3.5", "10.1"], sorted)
+  end
+
   def test_negative_strings
     left = ["1", "-1"]
     sorted = Liquid2::Filters.sort_numeric(left, context: MOCK_RENDER_CONTEXT)