Fix scientific floats (#774)

Author: dmontagu

src/input/parse_json.rs

@@ -146,7 +146,7 @@ impl<'de> Deserialize<'de> for JsonInput {
 
                                 if let JsonInput::String(s) = &first_value {
                                     // Normalize the string to either an int or float
-                                    let normalized = if s.contains('.') {
+                                    let normalized = if s.contains('.') || s.contains('e') {
                                         JsonInput::Float(
                                             s.parse()
                                                 .map_err(|e| V::Error::custom(format!("expected a float: {e}")))?,

tests/validators/test_float.py

@@ -325,3 +325,9 @@ def test_non_finite_constrained_float_values(input_value, allow_inf_nan, expecte
             v.validate_python(input_value)
     else:
         assert v.validate_python(input_value) == expected
+
+
+def test_validate_scientific_notation_from_json():
+    v = SchemaValidator({'type': 'float'})
+    assert v.validate_json('1.0e-12') == 1e-12
+    assert v.validate_json('1e-12') == 1e-12