Basically ArcanistUnitTestResult looks like:
```
public function toDictionary() {
return array(
'name' => $this->getName(),
'link' => $this->getLink(),
'result' => $this->getResult(),
'duration' => $this->getDuration(),
'extra' => $this->getExtraData(),
'userData' => $this->getUserData(),
'coverage' => $this->getCoverage(),
);
}
```
while the ArcanistDiffWorkflow does this:
```
$this->testResults = array();
foreach ($unit_workflow->getTestResults() as $test) {
$this->testResults[] = array(
'name' => $test->getName(),
'link' => $test->getLink(),
'result' => $test->getResult(),
'userdata' => $test->getUserData(),
'coverage' => $test->getCoverage(),
'extra' => $test->getExtraData(),
);
}
```
Taking the output from `arc unit --output json` is almost perfect, except the capitalization of "userData" means that this field doesn't match (even though all of the other fields are fine).