Test vs spec

Test

noun
  • A Test match. 

name
  • A river in Hampshire, England, which empties into the Solent near Southampton. 

spec

noun
  • A spectacular mark (catch) in Australian rules football. 

verb
  • To specify, especially in a formal specification document. 

How often have the words Test and spec occurred in a corpus of books? (source: Google Ngram Viewer )