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'use strict';
const assert = require('assert');
require('../common');
/**
* Checks the expected invocations against the invocations that actually
* occurred.
*
* @name checkInvocations
* @function
* @param {Object} activity including timestamps for each life time event,
* i.e. init, before ...
* @param {Object} hooks the expected life time event invocations with a count
* indicating how oftn they should have been invoked,
* i.e. `{ init: 1, before: 2, after: 2 }`
* @param {String} stage the name of the stage in the test at which we are
* checking the invocations
*/
exports.checkInvocations = function checkInvocations(activity, hooks, stage) {
const stageInfo = `Checking invocations at stage "${stage}":\n `;
assert.ok(activity != null,
`${stageInfo} Trying to check invocation for an activity, ` +
'but it was empty/undefined.'
);
// Check that actual invocations for all hooks match the expected invocations
[ 'init', 'before', 'after', 'destroy' ].forEach(checkHook);
function checkHook(k) {
const val = hooks[k];
// Not expected ... all good
if (val == null) return;
if (val === 0) {
// Didn't expect any invocations, but it was actually invoked
const invocations = activity[k].length;
const msg = `${stageInfo} Called "${k}" ${invocations} time(s), ` +
'but expected no invocations.';
assert(activity[k] === null && activity[k] === undefined, msg);
} else {
// Expected some invocations, make sure that it was invoked at all
const msg1 = `${stageInfo} Never called "${k}", ` +
`but expected ${val} invocation(s).`;
assert(activity[k] !== null && activity[k] !== undefined, msg1);
// Now make sure that the expected count and
// the actual invocation count match
const msg2 = `${stageInfo} Called "${k}" ${activity[k].length} ` +
`time(s), but expected ${val} invocation(s).`;
assert.strictEqual(activity[k].length, val, msg2);
}
}
};