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75 lines
3.9 KiB
75 lines
3.9 KiB
'use strict';
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const assert = require('assert');
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const CachePolicy = require('..');
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describe('Vary', function() {
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it('Basic', function() {
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const policy = new CachePolicy({headers:{'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'weather'}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'weather': 'nice'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'weather': 'bad'}}));
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});
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it("* doesn't match", function() {
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const policy = new CachePolicy({headers:{'weather': 'ok'}}, {headers:{'cache-control':'max-age=5','vary':'*'}});
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assert(!policy.satisfiesWithoutRevalidation({headers:{'weather': 'ok'}}));
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});
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it("* is stale", function() {
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const policy1 = new CachePolicy({headers:{'weather': 'ok'}}, {headers:{'cache-control':'public,max-age=99', 'vary':'*'}});
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const policy2 = new CachePolicy({headers:{'weather': 'ok'}}, {headers:{'cache-control':'public,max-age=99', 'vary':'weather'}});
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assert(policy1.stale());
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assert(!policy2.stale());
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});
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it('Values are case-sensitive', function() {
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const policy = new CachePolicy({headers:{'weather': 'BAD'}}, {headers:{'cache-control':'max-age=5','vary':'Weather'}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'weather': 'BAD'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'weather': 'bad'}}));
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});
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it('Irrelevant headers ignored', function() {
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const policy = new CachePolicy({headers:{'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'moon-phase'}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'weather': 'bad'}}));
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assert(policy.satisfiesWithoutRevalidation({headers:{'sun': 'shining'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'moon-phase': 'full'}}));
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});
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it('Absence is meaningful', function() {
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const policy = new CachePolicy({headers:{'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'moon-phase, weather'}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'weather': 'nice'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'weather': 'nice', 'moon-phase': ''}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{}}));
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});
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it('All values must match', function() {
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const policy = new CachePolicy({headers:{'sun': 'shining', 'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'weather, sun'}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'sun': 'shining', 'weather': 'nice'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'sun': 'shining', 'weather': 'bad'}}));
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});
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it('Whitespace is OK', function() {
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const policy = new CachePolicy({headers:{'sun': 'shining', 'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':' weather , sun '}});
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assert(policy.satisfiesWithoutRevalidation({headers:{'sun': 'shining', 'weather': 'nice'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'weather': 'nice'}}));
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assert(!policy.satisfiesWithoutRevalidation({headers:{'sun': 'shining'}}));
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});
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it('Order is irrelevant', function() {
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const policy1 = new CachePolicy({headers:{'sun': 'shining', 'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'weather, sun'}});
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const policy2 = new CachePolicy({headers:{'sun': 'shining', 'weather': 'nice'}}, {headers:{'cache-control':'max-age=5','vary':'sun, weather'}});
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assert(policy1.satisfiesWithoutRevalidation({headers:{'weather': 'nice', 'sun': 'shining'}}));
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assert(policy1.satisfiesWithoutRevalidation({headers:{'sun': 'shining', 'weather': 'nice'}}));
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assert(policy2.satisfiesWithoutRevalidation({headers:{'weather': 'nice', 'sun': 'shining'}}));
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assert(policy2.satisfiesWithoutRevalidation({headers:{'sun': 'shining', 'weather': 'nice'}}));
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});
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});
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