Add test for utf16CharMap

novelwriter/common.py

@@ -500,13 +500,13 @@ def utf16CharMap(text: str) -> list[int]:
     ASCII, UCS-2 or UCS-4. QStrings are in UTF-16, so wide characters
     use 2 indices, and thus creates an offset.
     """
-    posMap = list(range(0, len(text) + 1))
+    utf16Map = list(range(0, len(text) + 1))
     offset = 0
-    for i, c in enumerate(text):
+    for i, c in enumerate(text, 1):
         if ord(c) > 0xffff:
             offset += 1
-        posMap[i + 1] = i + 1 + offset
-    return posMap
+        utf16Map[i] = i + offset
+    return utf16Map
 
 
 ##

tests/test_base/test_base_common.py

@@ -38,8 +38,8 @@ from novelwriter.common import (
     fuzzyTime, getFileSize, hexToInt, isHandle, isItemClass, isItemLayout,
     isItemType, isListInstance, isTitleTag, jsonEncode, makeFileNameSafe,
     minmax, numberToRoman, openExternalPath, processDialogSymbols,
-    readTextFile, simplified, transferCase, uniqueCompact, xmlElement,
-    xmlIndent, xmlSubElem, yesNo
+    readTextFile, simplified, transferCase, uniqueCompact, utf16CharMap,
+    xmlElement, xmlIndent, xmlSubElem, yesNo
 )
 from novelwriter.enum import nwItemClass
 
@@ -557,6 +557,14 @@ def testBaseCommon_encodeDecodeMimeHandles(monkeypatch):
     assert decodeMimeHandles(mimeData) == handles
 
 
+@pytest.mark.base
+def testBaseCommon_utf16CharMap(monkeypatch):
+    """Test the utf16CharMap function."""
+    assert utf16CharMap("abc") == [0, 1, 2, 3]
+    assert utf16CharMap("a\u2014b\u2014c") == [0, 1, 2, 3, 4, 5]
+    assert utf16CharMap("a\U0001F605b\U0001F605c") == [0, 1, 3, 4, 6, 7]
+
+
 @pytest.mark.base
 def testBaseCommon_jsonEncode():
     """Test the jsonEncode function."""