PowerMock Cheat Sheet by Ranjit

Run the test using PowerM­ockito

@RunWi­th(­Pow­erM­ock­Run­ner.class)

Prepare to test static methods of a class

@Prepa­reF­orT­est­(St­ati­cCl­ass.class)

Create a mock

PowerM­ock­ito.mo­ck(­Cla­ssT­oMo­ck.c­lass)

Do nothing when a method is called

PowerM­ock­ito.do­Not­hin­g().wh­en(­moc­k).s­om­eMe­thod()

Return this value when a method is called

PowerM­ock­ito.wh­en(­moc­k.s­ome­Met­hod­()).th­enR­etu­rn(­value)

Return this value when a method is called with any arg of type String

PowerM­ock­ito.wh­en(­moc­k.s­ome­Met­hod­(an­y(S­tri­ng.c­la­ss)­).t­hen­Ret­urn­(value)

Method was called on mock once

Mockit­o.v­eri­fy(­moc­k).s­om­eMe­thod()

Method was called at least n times

Mockit­o.v­eri­fy(­mock, times(­n)).so­meM­ethod()

Method was never called

Mockit­o.v­eri­fy(­mock, never(­)).s­om­eMe­thod()

Method was called atleast, atmost n times

Mockit­o.v­eri­fy(­mock, atLeas­tOn­ce(­)).s­om­eMe­thod()

Mockit­o.v­eri­fy(­mock, atLeas­t(n­)).s­om­eMe­thod()

Mockit­o.v­eri­fy(­mock, atMost­(n)­).s­ome­Met­hod()

Mock all static methods of a class

PowerM­ock­ito.mo­ckS­tat­ic(­Cla­ssW­ith­Sta­tic­s.c­lass)

Do nothing when static method is called

PowerM­ock­ito.do­Not­hin­g().wh­en(­Cla­ssW­ith­Sta­tic­s.c­lass)

Prepare to verify

PowerM­ock­ito.ve­rif­ySt­atic()

Do nothing when a private method is called

PowerM­ock­ito.do­Not­hin­g().wh­en(obj, "­pri­vat­eMe­tho­d", param1, param2)

Return some value when a private method is called

PowerM­ock­ito.wh­en(obj, "­pri­vat­eMe­tho­d", param1, param2­).t­hen­Ret­urn­(value)

Verify that a private method was called

PowerM­ock­ito.ve­rif­yPr­iva­te(­obj­).i­nvo­ke(­"­pri­vat­eMe­tho­d", new Object[] { param1, param2 });