test/lit/scripts/extract_wasms.lit

;; Test extracting wasm files from JS.

;; A proper wasm start sequence (\0asm), so we will extract it.
;; RUN: echo "good1(new Uint8Array([0x00, 0x61, 0x73, 0x6D, 0x01]));" > %t.js

;; A difference in the second byte, so we won't.
;; RUN: echo "bad1(new Uint8Array([0x00, 0xff, 0x73, 0x6D, 0x01]));" >> %t.js

;; The last byte is unparseable as an integer, so we won't.
;; RUN: echo "bad2(new Uint8Array([0x00, 0x61, 0x73, 0x6D, 6Dx0]));" >> %t.js

;; This is not a Uint8Array, so we do nothing.
;; RUN: echo "bad3(new Uint16Array([0x00, 0x61, 0x73, 0x6D, 0x01]));" >> %t.js

;; Another proper one. Note the second number is in base 10, which works too,
;; & there is various odd whitespace which we also ignore.
;; RUN: echo "good2(new Uint8Array([0x00,97,   0x73, 0x6D,0x01]));" >> %t.js

;; RUN: python %S/../../../scripts/clusterfuzz/extract_wasms.py %t.js %t.out
;; RUN: cat %t.out.js | filecheck %s
;;
;; We extracted the good but not the bad.
;; CHECK: good1(undefined /* extracted wasm */)
;; CHECK: bad1(new Uint8Array
;; CHECK: bad2(new Uint8Array
;; CHECK: bad3(new Uint16Array
;; CHECK: good2(undefined /* extracted wasm */)