Fix _parse_file and add new test

Signed-off-by: konstantin <[email protected]>

Author: zurk

lookout/style/format/features.py

@@ -639,6 +639,8 @@ def _parse_file(self, contents: str, root: bblfsh.Node, path: str) -> \
         parser = self.tokens.PARSER
         searchsorted = numpy.searchsorted
         for node in node_tokens:
+            if node.start_position.offset < pos:
+                continue
             if node.start_position.offset > pos:
                 sumlen = 0
                 diff = contents[pos:node.start_position.offset]

lookout/style/format/tests/for_parse_test.js.xz

@@ -25,6 +25,15 @@ def setUpClass(cls):
             cls.uast = bblfsh.Node.FromString(fin.read())
         cls.extractor = FeatureExtractor("javascript", parents_depth=2, siblings_window=5)
 
+    def test_parse_file2(self):
+        test_js_code_filepath = Path(__file__).parent / "for_parse_test.js.xz"
+        with lzma.open(str(test_js_code_filepath), mode="rt") as f:
+            code = f.read()
+        uast = bblfsh.BblfshClient("0.0.0.0:9432").parse(
+            filename="", language="javascript", contents=code.encode()).uast
+        nodes, parents = self.extractor._parse_file(code, uast, test_js_code_filepath)
+        self.assertEqual("".join(n.value for n in nodes), code)
+
     def test_parse_file(self):
         nodes, parents = self.extractor._parse_file(self.contents, self.uast, "test_file")
         text = []