I hope it will not see my prospective employer.
A year ago I learned about PHPUnit. Was scared too. I realized the depth of the abyss between me and the testing.
A month ago I talked. Set. Connected to Simfony. Written by two of integration for the two most important controllers. Use assertEquals, assertContains and very simple and cool assertThat. More comfortable adapting @dataProvider and @depends.
All this was enough:
1) some article
2) official symfony doc
You know, life has become easier. Just because you did it. And everything else will follow.