add tests for SemanticsDict

src/rhoknp/props/semantics.py

@@ -32,10 +32,8 @@ def from_sstring(cls, sstring: str) -> "SemanticsDict":
 
     def to_sstring(self) -> str:
         """意味情報文字列に変換．"""
-        if self.is_nil:
-            return self.NIL
         if len(self) == 0:
-            return ""
+            return "" if self.is_nil is False else self.NIL
         return f'"{" ".join(self._item_to_sstring(k, v) for k, v in self.items())}"'
 
     @staticmethod

tests/props/test_semantics.py

@@ -1,20 +1,43 @@
+from typing import Any
+
 import pytest
 
 from rhoknp.props import SemanticsDict
 
+CASES = [
+    {
+        "sstring": '"代表表記:天気/てんき カテゴリ:抽象物"',
+        "dict_": {"代表表記": "天気/てんき", "カテゴリ": "抽象物"},
+    },
+    {
+        "sstring": '"代表表記:新/しん 内容語 NE:ORGANIZATION:head"',
+        "dict_": {"代表表記": "新/しん", "内容語": True, "NE": "ORGANIZATION:head"},
+    },
+    {
+        "sstring": "NIL",
+        "dict_": {},
+    },
+]
+
+
+@pytest.mark.parametrize("case", CASES)
+def test_from_fstring(case: dict[str, Any]) -> None:
+    semantics = SemanticsDict.from_sstring(case["sstring"])
+    assert dict(semantics) == case["dict_"]
 
-@pytest.mark.parametrize("sstring", ['"代表表記:天気/てんき カテゴリ:抽象物"', "NIL"])
-def test_from_fstring(sstring: str) -> None:
-    semantics = SemanticsDict.from_sstring(sstring)
-    assert semantics.to_sstring() == sstring
+
+@pytest.mark.parametrize("case", CASES)
+def test_to_fstring(case: dict[str, Any]) -> None:
+    semantics = SemanticsDict(case["dict_"], is_nil=True)
+    assert semantics.to_sstring() == case["sstring"]
 
 
 def test_false():
     assert SemanticsDict._item_to_sstring("sem", False) == ""
 
 
 def test_empty_dict():
-    semantics = SemanticsDict()
+    semantics = SemanticsDict({})
     assert semantics.to_sstring() == ""