}
$plot->SetDataValues($data1);
$plot->DrawGraph();
ob_start();
$plot->PrintImageFrame();
$frame1 = ob_get_clean();
$plot->SetDataValues($data2);
$plot->DrawGraph();
ob_start();
$plot->PrintImageFrame();
$frame2 = ob_get_clean();
if (!check_frame($frame1, $boundary) || !check_frame($frame2, $boundary)) {
# This is kind of useless for debugging, but the frame isn't text so
# we can't just print it...
fwrite(STDERR, "Error: Frame(s) did not match expected pattern\n");
$errors++;
}
ob_start();
$plot->EndStream();
$eof = ob_get_clean();
if (!preg_match("--{$boundary}--", $eof)) {
fwrite(STDERR, "Error: Did not match end of stream: '{$eof}'\n");
$errors++;
}
echo basename(__FILE__) . ': ';
if ($errors > 0) {
echo "Failed\n";
exit(1);
}
echo "Passed\n";
# Testing requires falling off the end if the test passes.
