File size: 7,208 Bytes
bf2c053
 
 
 
 
88cf4ae
bf2c053
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
88cf4ae
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bf2c053
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
88cf4ae
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bf2c053
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
88cf4ae
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
from io import BytesIO

from fastapi.testclient import TestClient
from PIL import Image

from faceverification.config import settings
from faceverification.core.image_processor import FaceNotDetectedError
from faceverification.interfaces.fastapi_app import app, get_face_service


def _image_bytes() -> bytes:
    buffer = BytesIO()
    Image.new("RGB", (12, 12), "white").save(buffer, format="PNG")
    return buffer.getvalue()


class FakeService:
    def __init__(self):
        self.add_person_calls = []
        self.verify_person_calls = []

    def add_person(self, image, name):
        self.add_person_calls.append((image, name))
        return Image.new("RGB", image.size, "black")

    def verify_person(self, image):
        self.verify_person_calls.append(image)
        return "Ada", Image.new("RGB", image.size, "black")


def _auth_headers(client: TestClient) -> dict[str, str]:
    response = client.post(
        "/auth/login",
        data={"username": "demo", "password": "demo123"},
    )
    token = response.json()["access_token"]
    return {"Authorization": f"Bearer {token}"}


def test_health_returns_ok():
    client = TestClient(app)

    response = client.get("/health")

    assert response.status_code == 200
    assert response.json() == {"status": "ok"}


def test_login_returns_access_token():
    client = TestClient(app)

    response = client.post(
        "/auth/login",
        data={"username": "demo", "password": "demo123"},
    )

    body = response.json()
    assert response.status_code == 200
    assert body["token_type"] == "bearer"
    assert body["access_token"]


def test_login_rejects_invalid_credentials():
    client = TestClient(app)

    response = client.post(
        "/auth/login",
        data={"username": "demo", "password": "wrong"},
    )

    assert response.status_code == 401
    assert response.json() == {"detail": "Incorrect username or password."}


def test_verify_identity_requires_token():
    client = TestClient(app)

    response = client.post(
        "/verify",
        files={"image": ("face.png", _image_bytes(), "image/png")},
    )

    assert response.status_code == 401
    assert response.json() == {"detail": "Not authenticated"}


def test_enroll_person_calls_service_and_returns_annotated_image():
    fake_service = FakeService()
    app.dependency_overrides[get_face_service] = lambda: fake_service
    try:
        client = TestClient(app)
        response = client.post(
            "/persons",
            headers=_auth_headers(client),
            data={"name": " Ada "},
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    body = response.json()
    assert response.status_code == 201
    assert body["name"] == "Ada"
    assert body["message"] == "Person added to the embeddings database."
    assert body["annotated_image"].startswith("data:image/png;base64,")
    assert fake_service.add_person_calls[0][1] == "Ada"


def test_verify_identity_returns_match_result():
    fake_service = FakeService()
    app.dependency_overrides[get_face_service] = lambda: fake_service
    try:
        client = TestClient(app)
        response = client.post(
            "/verify",
            headers=_auth_headers(client),
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    body = response.json()
    assert response.status_code == 200
    assert body["name"] == "Ada"
    assert body["matched"] is True
    assert body["annotated_image"].startswith("data:image/png;base64,")


def test_verify_identity_can_skip_annotated_image():
    fake_service = FakeService()
    app.dependency_overrides[get_face_service] = lambda: fake_service
    try:
        client = TestClient(app)
        response = client.post(
            "/verify?include_image=false",
            headers=_auth_headers(client),
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    body = response.json()
    assert response.status_code == 200
    assert body == {"name": "Ada", "matched": True}


def test_verify_identity_returns_unprocessable_when_no_face_is_detected():
    class NoFaceService(FakeService):
        def verify_person(self, image):
            raise FaceNotDetectedError("No faces were detected in the image.")

    app.dependency_overrides[get_face_service] = lambda: NoFaceService()
    try:
        client = TestClient(app)
        response = client.post(
            "/verify",
            headers=_auth_headers(client),
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 422
    assert response.json() == {"detail": "No faces were detected in the image."}


def test_verify_identity_returns_internal_error_for_unexpected_service_failure():
    class BrokenService(FakeService):
        def verify_person(self, image):
            raise RuntimeError("model failed")

    app.dependency_overrides[get_face_service] = lambda: BrokenService()
    try:
        client = TestClient(app)
        response = client.post(
            "/verify",
            headers=_auth_headers(client),
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 500
    assert response.json() == {"detail": "Face verification failed."}


def test_enroll_person_rejects_blank_name():
    app.dependency_overrides[get_face_service] = lambda: FakeService()
    try:
        client = TestClient(app)
        response = client.post(
            "/persons",
            headers=_auth_headers(client),
            data={"name": "   "},
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 422
    assert response.json() == {"detail": "Person name is required."}


def test_upload_rejects_non_image_content_type():
    app.dependency_overrides[get_face_service] = lambda: FakeService()
    try:
        client = TestClient(app)
        response = client.post(
            "/verify",
            headers=_auth_headers(client),
            files={"image": ("face.txt", b"hello", "text/plain")},
        )
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 415
    assert response.json() == {"detail": "Uploaded file must be an image."}


def test_upload_rejects_large_image(monkeypatch):
    monkeypatch.setattr(settings, "max_upload_bytes", 1)
    app.dependency_overrides[get_face_service] = lambda: FakeService()
    try:
        client = TestClient(app)
        response = client.post(
            "/verify",
            headers=_auth_headers(client),
            files={"image": ("face.png", _image_bytes(), "image/png")},
        )
    finally:
        app.dependency_overrides.clear()

    assert response.status_code == 413
    assert response.json() == {"detail": "Uploaded image is too large."}