diff --git a/Project_Model/Tests/bpe_trainer.py b/Project_Model/Tests/bpe_trainer.py
new file mode 100644
index 0000000..2e1fa08
--- /dev/null
+++ b/Project_Model/Tests/bpe_trainer.py
@@ -0,0 +1,42 @@
+from pathlib import Path
+from Project_Model.Libs.BPE.Enums import TokenType
+import Project_Model.Libs.BPE as BPE
+
+import re
+
+CACHE_DIR_PATH = Path("Project_Model/Tests/trainer_files/cache")
+
+class TestTrainBPE:
+
+    def test_bpe_train_encoding_simple(self):
+
+        TRAINER = BPE.NanoSocraTrainer(
+            int(32E3),
+            ["<SOT>", "<EOT>"],
+            40
+        )
+
+        TEXT = "abababab"
+        TEXT_PATH = Path("Project_Model/Tests/trainer_files/train_simple.txt")
+
+        EXPECTED = [258]
+
+        # ab = 256
+        # 256, 256 = 257
+        # 257, 257 = 258
+
+        BPE_ENCODER = TRAINER.trainBPE(
+            TEXT_PATH,
+            CACHE_DIR_PATH
+        )
+
+        ENCODED = BPE_ENCODER.encode(TEXT)
+
+        assert len(ENCODED) == len(EXPECTED)
+
+        for encoded, expected in zip(ENCODED, EXPECTED):
+            assert encoded == expected
+
+# Useful to debug weird cases
+if __name__ == "__main__":
+    TestTrainBPE().test_bpe_train_encoding_simple()
diff --git a/Project_Model/Tests/trainer_files/train_simple.txt b/Project_Model/Tests/trainer_files/train_simple.txt
new file mode 100644
index 0000000..19f4c70
--- /dev/null
+++ b/Project_Model/Tests/trainer_files/train_simple.txt
@@ -0,0 +1 @@
+<SOT>abababab<EOT>
\ No newline at end of file