78 lines
3.7 KiB
78 lines
3.7 KiB
'use strict';
|
|
|
|
const assert = require('assert');
|
|
const CachePolicy = require('..');
|
|
|
|
const simpleRequest = {
|
|
method:'GET',
|
|
headers:{host:'www.w3c.org'},
|
|
url:'/Protocols/rfc2616/rfc2616-sec14.html',
|
|
};
|
|
function simpleRequestBut(overrides) {
|
|
return Object.assign({}, simpleRequest, overrides);
|
|
}
|
|
|
|
const cacheableResponse = {headers:{'cache-control':'max-age=111'}};
|
|
const etaggedResponse = {headers:Object.assign({'etag':'"123456789"'},cacheableResponse.headers)};
|
|
const lastModifiedResponse = {headers:Object.assign({'last-modified':'Tue, 15 Nov 1994 12:45:26 GMT'},cacheableResponse.headers)};
|
|
const multiValidatorResponse = {headers:Object.assign({},etaggedResponse.headers,lastModifiedResponse.headers)};
|
|
const alwaysVariableResponse = {headers:Object.assign({'vary':'*'},cacheableResponse.headers)};
|
|
|
|
describe('Can be revalidated?', function() {
|
|
it('ok if method changes to HEAD', function(){
|
|
const cache = new CachePolicy(simpleRequest,etaggedResponse);
|
|
const headers = cache.revalidationHeaders(simpleRequestBut({method:'HEAD'}));
|
|
assert.equal(headers['if-none-match'], '"123456789"');
|
|
});
|
|
it('not if method mismatch (other than HEAD)',function(){
|
|
const cache = new CachePolicy(simpleRequest,etaggedResponse);
|
|
const incomingRequest = simpleRequestBut({method:'POST'});
|
|
// Returns the same object unmodified, which means no custom validation
|
|
assert.strictEqual(incomingRequest.headers, cache.revalidationHeaders(incomingRequest));
|
|
});
|
|
it('not if url mismatch',function(){
|
|
const cache = new CachePolicy(simpleRequest,etaggedResponse);
|
|
const incomingRequest = simpleRequestBut({url:'/yomomma'});
|
|
assert.strictEqual(incomingRequest.headers, cache.revalidationHeaders(incomingRequest));
|
|
});
|
|
it('not if host mismatch',function(){
|
|
const cache = new CachePolicy(simpleRequest,etaggedResponse);
|
|
const incomingRequest = simpleRequestBut({headers:{host:'www.w4c.org'}});
|
|
assert.strictEqual(incomingRequest.headers, cache.revalidationHeaders(incomingRequest));
|
|
});
|
|
it('not if vary fields prevent',function(){
|
|
const cache = new CachePolicy(simpleRequest,alwaysVariableResponse);
|
|
assert.strictEqual(simpleRequest.headers, cache.revalidationHeaders(simpleRequest));
|
|
});
|
|
it('when entity tag validator is present', function() {
|
|
const cache = new CachePolicy(simpleRequest, etaggedResponse);
|
|
const headers = cache.revalidationHeaders(simpleRequest);
|
|
assert.equal(headers['if-none-match'], '"123456789"');
|
|
});
|
|
it('when last-modified validator is present', function() {
|
|
const cache = new CachePolicy(simpleRequest, lastModifiedResponse);
|
|
const headers = cache.revalidationHeaders(simpleRequest);
|
|
assert.equal(headers['if-modified-since'], 'Tue, 15 Nov 1994 12:45:26 GMT');
|
|
});
|
|
it('not without validators', function() {
|
|
const cache = new CachePolicy(simpleRequest, cacheableResponse);
|
|
assert.strictEqual(simpleRequest.headers, cache.revalidationHeaders(simpleRequest));
|
|
})
|
|
|
|
});
|
|
|
|
describe('Validation request', function(){
|
|
it('must contain any etag', function(){
|
|
const cache = new CachePolicy(simpleRequest,multiValidatorResponse);
|
|
const expected = multiValidatorResponse.headers.etag;
|
|
const actual = cache.revalidationHeaders(simpleRequest)['if-none-match'];
|
|
assert.equal(actual,expected);
|
|
});
|
|
it('should send the Last-Modified value',function(){
|
|
const cache = new CachePolicy(simpleRequest,multiValidatorResponse);
|
|
const expected = multiValidatorResponse.headers['last-modified'];
|
|
const actual = cache.revalidationHeaders(simpleRequest)['if-modified-since'];
|
|
assert.equal(actual,expected);
|
|
});
|
|
|
|
});
|
|
|