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helpersTest.js
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helpersTest.js
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/**
* Tests for the nginx javascript helper
* Run with:
* gen3 testsuite --filter revproxy
*/
// Hacky way of getting our functions into node.js scripts
// source: https://stackoverflow.com/questions/5797852/in-node-js-how-do-i-include-functions-from-my-other-files
const fs = require('fs');
eval(fs.readFileSync('helpers.js')+'');
const crypto = require('crypto');
const log = (str) => console.log('LOGGED: ' + str);
describe("Nginx helper function", function() {
it("userid returns correct user and uuid from access_token", function() {
const uuid = '1234567890abcdefghijklmnop';
const user = 'jimmyjoe@joetown.gov';
// access token with uuid and user above
const access_token = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwYWJjZGVmZ2hpamtsbW5vcCIsImNvbnRleHQiOnsidXNlciI6eyJuYW1lIjoiamltbXlqb2VAam9ldG93bi5nb3YifX0sImlhdCI6MTU0MTAwMTg4M30.Mo7zS3PV-Ji3hhCgtLLQsBGvRIIXnziqfo9e2_COwTkc4X_AwcU3fvcP7vQx0d11uglAFzg3V8y0QX1JMFR5YT9kEegkyu5NOnvNcQ9gbp3Jg_9oJAdrWxW-RKgKvzDzvFBLhwlkHpMyQHM4fOnMg9U4N6IgZdbZ5Ez754uKGH8';
const nginxRequest = {
variables: {
access_token: access_token
}
};
// expect the user and uuid to be in the returned string
const parsedUser = userid(nginxRequest);
expect(parsedUser).toMatch(uuid);
expect(parsedUser).toMatch(user);
});
it("MathAbs returns positive given negative", function() {
expect(MathAbs(-72)).toBe(72);
});
it("MathAbs returns positive given positive", function() {
expect(MathAbs(72)).toBe(72);
});
it("simpleHash returns an integer between 0 and 100", function() {
let counts = [];
for (var i = 0; i < 100; i++) counts[i] = 0;
for (let i=0; i < 500; i++) {
const randString = crypto.randomBytes(36).toString('hex') + crypto.randomBytes(36).toString('hex');
const hashVal = simpleHash(randString, 100);
expect(hashVal).toBeGreaterThan(-1);
expect(hashVal).toBeLessThan(100);
counts[hashVal]++
}
// print the distribution
console.log('\nHash histogram (make sure it looks uniform):');
counts.forEach(val => console.log('#'.repeat(val)));
});
it("getWeight returns weight of defined service", function() {
const weights = {
fence: 32,
default: 99
};
const w = getWeight('fence', weights);
expect(w).toBe(weights['fence'])
});
it("getWeight returns default if service weight undefined", function() {
const weights = {
fence: 32,
default: 99
};
const w = getWeight('sheepdog', weights);
expect(w).toBe(weights['default'])
});
it("selectRelease returns canary if hash val below weight", function() {
const hashVal = 0;
const serviceWeight = 100;
expect(selectRelease(hashVal, serviceWeight)).toEqual('canary');
});
it("selectRelease returns production if hash val above weight", function() {
const hashVal = 100;
const serviceWeight = 0;
expect(selectRelease(hashVal, serviceWeight)).toEqual('production');
});
it("selectRelease uses default weight if service weight is undefined", function() {
const hashVal = 100;
var serviceWeight;
const defaultWeight = 0;
expect(selectRelease(hashVal, serviceWeight, defaultWeight)).toEqual('production');
});
// mock user request information submitted with request
const propertiesForHash = {
realip: '128.135.98.222',
http_user_agent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36',
date_gmt: '24/Oct/2018:17:19:36 +0000'
};
it("getServiceReleases returns original release versions if in cookie", function() {
const cookie = 'fence.production';
let nginxRequest = {
variables: {
cookie_service_releases: cookie,
canary_percent_json: '{ "fence": 100 }',
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.production');
});
it("getServiceReleases returns dev override release versions if in cookie", function() {
const cookie = 'fence.production';
const devCookie = 'fence.canary';
let nginxRequest = {
variables: {
cookie_service_releases: cookie,
cookie_dev_canaries: devCookie,
canary_percent_json: '{ "fence": 0 }',
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.canary');
});
it("getServiceReleases returns correct release version when no cookie val is set (test 1)", function() {
// don't define the service release cookie, forcing it to hash and select a release
let nginxRequest = {
variables: {
canary_percent_json: '{ "fence": 100 }',
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.canary');
});
it("getServiceReleases returns correct release version when no cookie val is set (test 2)", function() {
// don't define the service release cookie, forcing it to hash and select a release
let nginxRequest = {
variables: {
canary_percent_json: '{ "fence": 0, "sheepdog": 100 }',
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.production');
expect(serviceReleases).toMatch('sheepdog.canary');
});
it("getServiceReleases uses manifest default weight if service weight not present", function() {
// don't define the service release cookie, forcing it to hash and select a release
let nginxRequest = {
variables: {
canary_percent_json: '{ "default": 100 }',
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.canary');
});
it("getServiceReleases uses script's default weight if NO weights are provided", function() {
// don't define the service release cookie, forcing it to hash and select a release
let nginxRequest = {
variables: {
canary_percent_json: '{}', // provide no weights - script should use it's default
...propertiesForHash,
},
log: log,
};
// default weight in script is 0 (ie it should always be assigned production)
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.production');
});
it("getServiceReleases sets service to production when weight is 0", function() {
// set fence to canary, and weight to 0 - should ignore the cookie and set to production
const cookie = 'fence.canary';
let nginxRequest = {
variables: {
cookie_service_releases: cookie,
canary_percent_json: '{ "fence": 0 }', // provide no weights - script should use it's default
...propertiesForHash,
},
log: log,
};
const serviceReleases = getServiceReleases(nginxRequest);
expect(serviceReleases).toMatch('fence.production');
});
it("can check an item against a black list", function() {
const blackList = "quick,brown,fox";
blackList.split(',').forEach(
(testStr) => {
expect(isOnBlackList(testStr, blackList)).toBe(true, `${testStr} is on black list ${blackList}`);
}
);
const testStr="frickjack";
expect(isOnBlackList(testStr, blackList)).toBe(false, `${testStr} is not on black list ${blackList}`);
});
function ReqMock(query) {
return Object.assign(this, {
uri: "/workspace-authorize/",
variables: {
host: "workspace.planx-pla.net",
args: query
},
headersOut: {},
returnArgs: [],
"return": function(code, content) {
this.returnArgs.push({code, content});
}
});
}
it("can handle a valid wts authorize redirect", function() {
const goodReq = new ReqMock("code=whateer&state=frick123-bla&bla");
gen3_workspace_authorize_handler(goodReq);
expect(goodReq.returnArgs.length).toBe(1);
expect(goodReq.returnArgs[0].code).toBe(302);
expect(goodReq.returnArgs[0].content).toBe("https://frick123.workspace.planx-pla.net/wts/oauth2/authorize?code=whateer&state=frick123-bla&bla");
});
it("can handle invalid wts authorize redirects", function() {
[
"code=whateer&state=frick123.bad-bla&bla",
"code=whateer&state=bla&bla"
].forEach(
(badUri) => {
const badReq = new ReqMock(badUri);
gen3_workspace_authorize_handler(badReq);
expect(badReq.returnArgs.length).toBe(1);
expect(badReq.returnArgs[0].code).toBe(400);
}
);
});
});