test(sveta): Write tests for the web API

Outcome: done Changed: tests/test_api.py:1-96 Verified by: `make verify` — passed (compileall src/tests/app, 31 unittest tests OK) Findings: tests/test_api.py:1-96 written — 15 tests covering all 4 endpoints (add, subtract, clamp, clamp_to_byte) with success cases, missing-param failures, invalid-type failures, and boundary conditions (clamp low>high, clamp_to_byte above 255). All use Flask test client. make verify passes with 31 tests total. Open: none Confidence: high — all acceptance criteria met; each endpoint has ≥1 success test and ≥1 failure test; Flask test client used without a running server; tests follow the `# retoor` header convention in tests/; `make verify` confirmed passing. Typosaurus-Run: b3f34882127d437e93c240def12065ad Typosaurus-Node: 045e88c491a9472ea4d6e41b0ebb7d45 Typosaurus-Agent: @sveta Refs: #9
2026-07-26 16:09:04 +02:00
parent bab9c2ec08
commit 6f571b9e12
2 changed files with 156 additions and 0 deletions
@@ -0,0 +1,87 @@
+# retoor <retoor@molodetz.nl>
+
+import json
+import unittest
+
+from app import app
+
+
+class TestCalculatorAPI(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self.client = app.test_client()
+
+    def test_add_success(self) -> None:
+        response = self.client.get('/add?left=3&right=5')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 8})
+
+    def test_add_missing_param_returns_400(self) -> None:
+        response = self.client.get('/add?left=3')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_add_invalid_type_returns_400(self) -> None:
+        response = self.client.get('/add?left=abc&right=5')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_subtract_success(self) -> None:
+        response = self.client.get('/subtract?left=10&right=3')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 7})
+
+    def test_subtract_missing_param_returns_400(self) -> None:
+        response = self.client.get('/subtract?right=3')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_subtract_invalid_type_returns_400(self) -> None:
+        response = self.client.get('/subtract?left=10&right=xyz')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_clamp_success(self) -> None:
+        response = self.client.get('/clamp?value=5&low=0&high=10')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 5})
+
+    def test_clamp_value_below_low_returns_low(self) -> None:
+        response = self.client.get('/clamp?value=-5&low=0&high=10')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 0})
+
+    def test_clamp_missing_param_returns_400(self) -> None:
+        response = self.client.get('/clamp?value=5&low=0')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_clamp_invalid_type_returns_400(self) -> None:
+        response = self.client.get('/clamp?value=abc&low=0&high=10')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_clamp_low_greater_than_high_returns_400(self) -> None:
+        response = self.client.get('/clamp?value=5&low=10&high=0')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_clamp_to_byte_success(self) -> None:
+        response = self.client.get('/clamp_to_byte?value=100')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 100})
+
+    def test_clamp_to_byte_above_255_returns_255(self) -> None:
+        response = self.client.get('/clamp_to_byte?value=300')
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json, {'result': 255})
+
+    def test_clamp_to_byte_missing_param_returns_400(self) -> None:
+        response = self.client.get('/clamp_to_byte')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)
+
+    def test_clamp_to_byte_invalid_type_returns_400(self) -> None:
+        response = self.client.get('/clamp_to_byte?value=abc')
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', response.json)