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test_mw.echo.dm.UnreadNotificationCounter.js
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test_mw.echo.dm.UnreadNotificationCounter.js
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QUnit.module( 'ext.echo.dm - UnreadNotificationCounter' );
QUnit.test.each( '.getCappedNotificationCount()', [
{ input: 5, output: 5 },
{ input: 20, output: 11 },
{ input: 10, output: 10 }
], ( assert, data ) => {
const model = new mw.echo.dm.UnreadNotificationCounter(
null,
'all', // type
10 // max
);
assert.strictEqual(
model.getCappedNotificationCount( data.input ),
data.output,
'count for ' + data.input
);
} );
QUnit.test( '.estimateChange()', ( assert ) => {
const model = new mw.echo.dm.UnreadNotificationCounter(
null,
'all', // type
99 // max
);
// Set initial
model.setCount( 50 );
model.estimateChange( -10 );
assert.strictEqual(
model.getCount(),
40, // 50-10
'Estimation within range'
);
model.estimateChange( 70 );
assert.strictEqual(
model.getCount(),
100, // Estimation reached above cap - cap is set
'Estimation brings count to cap'
);
model.estimateChange( -10 );
assert.strictEqual(
model.getCount(),
100, // We are already above cap, count will not change
'Estimation while counter is outside of cap - no change'
);
} );
QUnit.test( '.setCount()', ( assert ) => {
const results = [];
const model = new mw.echo.dm.UnreadNotificationCounter(
null,
'all', // type
99 // max
);
// Listen to event
model.on( 'countChange', ( count ) => {
results.push( count );
} );
// Trigger events
model.setCount( 50 ); // [ 50 ]
model.setCount( 300, true ); // (estimate, above max, bring to cap) [ 50, 100 ]
model.setCount( -1, true ); // (estimate while counter is above cap, no event) [ 50, 100 ]
model.setCount( 200 ); // (setting above cap, value is capped, same as current, no event) [ 50,100 ]
model.setCount( 10 ); // [ 50, 100, 10 ]
assert.deepEqual(
results,
[ 50, 100, 10 ],
'countChange events emitted.'
);
} );

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