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I'm trying to write most of my tests without hitting salesforce database. For that I'm implementing some simple mock class where I just return some SOQL queries when needed. The problem I'm facing now is with AggregateResult. Was someone able to create in memory this so that I can returned it in one of my mocked methods?

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Kinda depends on what you are trying to do with them. – Adrian Larson♦ 3 hours ago
    
I'm just interested in why you would want to avoid hitting the database in your test. – rael_kid 3 hours ago
    
@rael_kid I've mocked all sorts of records, simply because it's a great way to unit test individual methods instead of end-to-end tests. – sfdcfox 2 hours ago
up vote 5 down vote

You can use serialization if you're loathe to query:

AggregateResult agg = (AggregateResult)JSON.deserialize(
    '{"sumAlias": 1, "otherAlias": "Some Text"}', AggregateResult.class
);

You can simplify generating the payload using some sort of proxy class:

class Proxy
{
    Integer sumAlias;
    String otherAlias;
}
Proxy aggregateProxy = new Proxy();
aggregateProxy.sumAlias = 1;
aggregateProxy.otherAlias = 'Some Text';

AggregateResult agg = (AggregateResult)JSON.deserialize(
    JSON.serialize(aggregateProxy), AggregateResult.class
);
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1  
can you please check how it will work this line Proxy aggregateProxy = new AggregateProxy(); is it typo error? – Santanu Boral 1 hour ago
    
Right that's what I get for typing it out manually. – Adrian Larson♦ 1 hour ago

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