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# retoor <retoor@molodetz.nl>
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import json
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import unittest
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from app import app
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class TestCalculatorAPI(unittest.TestCase):
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def setUp(self) -> None:
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self.client = app.test_client()
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def test_add_success(self) -> None:
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response = self.client.get('/add?left=3&right=5')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 8})
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def test_add_missing_param_returns_400(self) -> None:
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response = self.client.get('/add?left=3')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_add_invalid_type_returns_400(self) -> None:
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response = self.client.get('/add?left=abc&right=5')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_subtract_success(self) -> None:
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response = self.client.get('/subtract?left=10&right=3')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 7})
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def test_subtract_missing_param_returns_400(self) -> None:
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response = self.client.get('/subtract?right=3')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_subtract_invalid_type_returns_400(self) -> None:
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response = self.client.get('/subtract?left=10&right=xyz')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_clamp_success(self) -> None:
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response = self.client.get('/clamp?value=5&low=0&high=10')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 5})
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def test_clamp_value_below_low_returns_low(self) -> None:
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response = self.client.get('/clamp?value=-5&low=0&high=10')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 0})
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def test_clamp_missing_param_returns_400(self) -> None:
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response = self.client.get('/clamp?value=5&low=0')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_clamp_invalid_type_returns_400(self) -> None:
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response = self.client.get('/clamp?value=abc&low=0&high=10')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_clamp_low_greater_than_high_returns_400(self) -> None:
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response = self.client.get('/clamp?value=5&low=10&high=0')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_clamp_to_byte_success(self) -> None:
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response = self.client.get('/clamp_to_byte?value=100')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 100})
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def test_clamp_to_byte_above_255_returns_255(self) -> None:
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response = self.client.get('/clamp_to_byte?value=300')
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self.assertEqual(response.status_code, 200)
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self.assertEqual(response.json, {'result': 255})
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def test_clamp_to_byte_missing_param_returns_400(self) -> None:
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response = self.client.get('/clamp_to_byte')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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def test_clamp_to_byte_invalid_type_returns_400(self) -> None:
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response = self.client.get('/clamp_to_byte?value=abc')
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self.assertEqual(response.status_code, 400)
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self.assertIn('error', response.json)
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