llama : move end-user examples to tools directory (#13249)

* llama : move end-user examples to tools directory

---------

Co-authored-by: Xuan Son Nguyen <son@huggingface.co>

tools/server/tests/unit/test_tokenize.py

@@ -0,0 +1,59 @@
+import pytest
+from utils import *
+
+server = ServerPreset.tinyllama2()
+
+
+@pytest.fixture(scope="module", autouse=True)
+def create_server():
+    global server
+    server = ServerPreset.tinyllama2()
+
+
+def test_tokenize_detokenize():
+    global server
+    server.start()
+    # tokenize
+    content = "What is the capital of France ?"
+    res_tok = server.make_request("POST", "/tokenize", data={
+        "content": content
+    })
+    assert res_tok.status_code == 200
+    assert len(res_tok.body["tokens"]) > 5
+    # detokenize
+    res_detok = server.make_request("POST", "/detokenize", data={
+        "tokens": res_tok.body["tokens"],
+    })
+    assert res_detok.status_code == 200
+    assert res_detok.body["content"].strip() == content
+
+
+def test_tokenize_with_bos():
+    global server
+    server.start()
+    # tokenize
+    content = "What is the capital of France ?"
+    bosId = 1
+    res_tok = server.make_request("POST", "/tokenize", data={
+        "content": content,
+        "add_special": True,
+    })
+    assert res_tok.status_code == 200
+    assert res_tok.body["tokens"][0] == bosId
+
+
+def test_tokenize_with_pieces():
+    global server
+    server.start()
+    # tokenize
+    content = "This is a test string with unicode 媽 and emoji 🤗"
+    res_tok = server.make_request("POST", "/tokenize", data={
+        "content": content,
+        "with_pieces": True,
+    })
+    assert res_tok.status_code == 200
+    for token in res_tok.body["tokens"]:
+        assert "id" in token
+        assert token["id"] > 0
+        assert "piece" in token
+        assert len(token["piece"]) > 0