feat: v0.4.0 - Amber serializer changes

src/syrupy/extensions/amber.py

@@ -103,8 +103,12 @@ def serialize_string(
         if "\n" in data:
             return (
                 cls.with_indent("'\n", depth)
-                + str(data)
-                + cls.with_indent("\n'", depth)
+                + "".join(
+                    cls.with_indent(line, depth + 1 if depth else depth)
+                    for line in str(data).splitlines(keepends=True)
+                )
+                + "\n"
+                + cls.with_indent("'", depth)
             )
         return cls.with_indent(repr(data), depth)
 

tests/__snapshots__/test_extension_amber.ambr

@@ -97,6 +97,17 @@
     'd': ...,
   }
 ---
+# name: test_deeply_nested_multiline_string_in_dict
+  <class 'dict'> {
+    'value_a': <class 'dict'> {
+      'value_b': '
+        line 1
+        line 2
+        line 3
+      ',
+    },
+  }
+---
 # name: test_dict[actual0]
   <class 'dict'> {
     'a': <class 'dict'> {
@@ -160,6 +171,14 @@
     },
   ]
 ---
+# name: test_multiline_string_in_dict
+  <class 'dict'> {
+    'value': '
+      line 1
+      line 2
+    ',
+  }
+---
 # name: test_multiple_snapshots
   'First.'
 ---

tests/test_extension_amber.py

@@ -23,6 +23,17 @@ def test_newline_control_characters(snapshot):
     assert snapshot == "line 1\r\nline 2\r\n"
 
 
+def test_multiline_string_in_dict(snapshot):
+    lines = "\n".join(["line 1", "line 2"])
+    assert {"value": lines} == snapshot
+
+
+def test_deeply_nested_multiline_string_in_dict(snapshot):
+    lines = "\n".join(["line 1", "line 2", "line 3"])
+    d = {"value_a": {"value_b": lines}}
+    assert d == snapshot
+
+
 @pytest.mark.parametrize("actual", [False, True])
 def test_bool(actual, snapshot):
     assert actual == snapshot