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diff --git a/tests/test_parseHelpers.py b/tests/test_parseHelpers.py
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+++ b/tests/test_parseHelpers.py
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+"""Tests for parseHelpers module."""
+
+import unittest
+
+from imago.data.enums import Player
+from imago.engine import parseHelpers
+
+TEST_BOARD_SIZE = 19
+
+class TestParseHelpers(unittest.TestCase):
+    """Test parseHelpers module."""
+
+    def testParseMove(self):
+        """Test parsing of GtpMove"""
+
+        self.assertEqual(parseHelpers.parseMove(["B"], TEST_BOARD_SIZE),
+            parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.parseMove(["A1"], TEST_BOARD_SIZE),
+            parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.parseMove(["B", "A1", "W"], TEST_BOARD_SIZE),
+            parseHelpers.ParseCodes.ERROR)
+
+        parsedMove = parseHelpers.parseMove(["B", "t1"], TEST_BOARD_SIZE)
+
+        targetMove = parseHelpers.GtpMove(Player.BLACK, [18, 18])
+        self.assertEqual(parsedMove.color, targetMove.color)
+        self.assertEqual(parsedMove.vertex, targetMove.vertex)
+
+    def testParseColor(self):
+        """Test parsing of color"""
+        self.assertEqual(parseHelpers.parseColor("b"), Player.BLACK)
+        self.assertEqual(parseHelpers.parseColor("B"), Player.BLACK)
+        self.assertEqual(parseHelpers.parseColor("w"), Player.WHITE)
+        self.assertEqual(parseHelpers.parseColor("W"), Player.WHITE)
+        self.assertEqual(parseHelpers.parseColor("bw"), parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.parseColor("wb"), parseHelpers.ParseCodes.ERROR)
+
+    def testParseVertexWrongInputs(self):
+        """Test wrong inputs for parseVertex."""
+        inputs = ( "a", "1", "1a", "aa1", "a0", "u1", "a"+str(TEST_BOARD_SIZE+1) )
+        for text in inputs:
+            self.assertEqual(parseHelpers.parseVertex(text, TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+
+    def testParseVertexCorrectInputs(self):
+        """Test correct inputs and their resulting coordinates for parseVertex."""
+        self.assertEqual(parseHelpers.parseVertex(
+            "a1", TEST_BOARD_SIZE),
+            [18,0])
+        self.assertEqual(parseHelpers.parseVertex(
+            "b1", TEST_BOARD_SIZE),
+            [18,1])
+        self.assertEqual(parseHelpers.parseVertex(
+            "a2", TEST_BOARD_SIZE),
+            [17,0])
+        self.assertEqual(parseHelpers.parseVertex(
+            "b2", TEST_BOARD_SIZE),
+            [17,1])
+
+        self.assertEqual(parseHelpers.parseVertex(
+            "T1", TEST_BOARD_SIZE),
+            [18,18])
+        self.assertEqual(parseHelpers.parseVertex(
+            "T19", TEST_BOARD_SIZE),
+            [0,18])
+        self.assertEqual(parseHelpers.parseVertex(
+            "A19", TEST_BOARD_SIZE),
+            [0,0])
+
+    def testVertexToString(self):
+        """Test converting vertices to strings."""
+        self.assertEqual(parseHelpers.vertexToString([0,0], TEST_BOARD_SIZE), "A19")
+        self.assertEqual(parseHelpers.vertexToString([1,0], TEST_BOARD_SIZE), "A18")
+        self.assertEqual(parseHelpers.vertexToString([2,0], TEST_BOARD_SIZE), "A17")
+        self.assertEqual(parseHelpers.vertexToString([0,1], TEST_BOARD_SIZE), "B19")
+        self.assertEqual(parseHelpers.vertexToString([0,2], TEST_BOARD_SIZE), "C19")
+        self.assertEqual(parseHelpers.vertexToString([0,18], TEST_BOARD_SIZE), "T19")
+        self.assertEqual(parseHelpers.vertexToString([18,0], TEST_BOARD_SIZE), "A1")
+        self.assertEqual(parseHelpers.vertexToString([18,18], TEST_BOARD_SIZE), "T1")
+
+        self.assertEqual(parseHelpers.vertexToString([-1,0], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([0,-1], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([-1,-1], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([19,0], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([0,19], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([19,19], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([0], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+        self.assertEqual(parseHelpers.vertexToString([0,0,0], TEST_BOARD_SIZE),
+                parseHelpers.ParseCodes.ERROR)
+
+if __name__ == '__main__':
+    unittest.main()