Testing God?

Then Gideon said to God, “In order to see whether you will deliver Israel by my hand, as you have said, I am going to lay a fleece of wool on the threshing floor; if there is dew on the fleece alone, and it is dry on all the ground, then I shall know that you will deliver Israel by my hand, as you have said.” And it was so. When he rose early next morning and squeezed the fleece, he wrung enough dew from the fleece to fill a bowl with water. Then Gideon said to God, “Do not let your anger burn against me, let me speak one more time; let me, please, make trial with the fleece just once more; let it be dry only on the fleece, and on all the ground let there be dew.” And God did so that night. It was dry on the fleece only, and on all the ground there was dew. (Judges 6:36-40, NRSV)

So God was sending Gideon off to undertake the task, and Gideon needed a sign that this was actually God.

So Gideon said make the fleece wet and the rest dry in the morning from the dew, and it was so.

But this was not enough, now Gideon wanted the ground wet and the fleece dry from dew!

But God still did it.

So is it ok to test God?