1 | import test from 'ava';
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2 | import addSeconds from 'date-fns/add_seconds';
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3 | import isEqual from 'date-fns/is_equal';
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4 | import expired from '../';
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5 |
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6 | test('expired.on is a function', t => {
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7 | t.is(typeof expired.in, 'function');
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8 | });
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9 |
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10 | test('expired.on returns correct expirey date for valid cache', t => {
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11 | const date = new Date().toUTCString();
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12 | const maxAge = 300;
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13 | const headers = {
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14 | date,
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15 | age: 0,
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16 | 'cache-control': `public, max-age=${maxAge}`
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17 | };
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18 | const expiredOn = addSeconds(date, maxAge);
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19 |
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20 | t.true(isEqual(expired.on(headers), expiredOn));
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21 | });
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22 |
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23 | test('expired.on returns correct expirey date for instantly stale cache', t => {
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24 | const date = new Date().toUTCString();
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25 | const headers = {
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26 | date,
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27 | age: 0,
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28 | 'cache-control': `public, max-age=0`
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29 | };
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30 |
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31 | t.true(isEqual(expired.on(headers), date));
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32 | });
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33 |
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34 | test('expired.on returns correct expirey date for stale cache', t => {
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35 | const date = new Date().toUTCString();
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36 | const dateOffset = -600;
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37 | const maxAge = 300;
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38 | const headers = {
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39 | date: addSeconds(date, dateOffset).toUTCString(),
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40 | age: 0,
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41 | 'cache-control': `public, max-age=${maxAge}`
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42 | };
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43 | const expiredOn = addSeconds(date, (maxAge + dateOffset));
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44 |
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45 | t.true(isEqual(expired.on(headers), expiredOn));
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46 | });
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47 |
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48 | test('expired.on takes age into account', t => {
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49 | const date = new Date().toUTCString();
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50 | const age = 150;
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51 | const maxAge = 300;
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52 | const headers = {
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53 | date,
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54 | age,
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55 | 'cache-control': `public, max-age=${maxAge}`
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56 | };
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57 | const expiredOn = addSeconds(date, (maxAge - age));
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58 |
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59 | t.true(isEqual(expired.on(headers), expiredOn));
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60 | });
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61 |
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62 | test('expired.on uses Expires header', t => {
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63 | const date = new Date().toUTCString();
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64 | const headers = {
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65 | date: addSeconds(date, 300),
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66 | expires: date
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67 | };
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68 |
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69 | t.true(isEqual(expired.on(headers), date));
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70 | });
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71 |
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72 | test('expired.on prefers Cache-Control over Expires header', t => {
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73 | const date = new Date().toUTCString();
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74 | const age = 150;
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75 | const maxAge = 300;
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76 | const headers = {
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77 | date,
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78 | age,
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79 | 'cache-control': `public, max-age=${maxAge}`,
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80 | expires: date
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81 | };
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82 | const expiredOn = addSeconds(date, (maxAge - age));
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83 |
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84 | t.true(isEqual(expired.on(headers), expiredOn));
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85 | });
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