1 files changed, 93 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/spec/start.wast b/js/src/jit-test/tests/wasm/spec/start.wast
new file mode 100644
index 0000000000..513f7b9bab
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/spec/start.wast
@@ -0,0 +1,93 @@
+(assert_invalid
+  (module (func) (start 1))
+  "unknown function"
+)
+(assert_invalid
+  (module
+    (func $main (result i32) (return (i32.const 0)))
+    (start $main)
+  )
+  "start function"
+)
+(assert_invalid
+  (module
+    (func $main (param $a i32))
+    (start $main)
+  )
+  "start function"
+)
+(module
+  (memory (data "A"))
+  (func $inc
+    (i32.store8
+      (i32.const 0)
+      (i32.add
+        (i32.load8_u (i32.const 0))
+        (i32.const 1)
+      )
+    )
+  )
+  (func $get (result i32)
+    (return (i32.load8_u (i32.const 0)))
+  )
+  (func $main
+    (call $inc)
+    (call $inc)
+    (call $inc)
+  )
+
+  (start $main)
+  (export "inc" (func $inc))
+  (export "get" (func $get))
+)
+(assert_return (invoke "get") (i32.const 68))
+(invoke "inc")
+(assert_return (invoke "get") (i32.const 69))
+(invoke "inc")
+(assert_return (invoke "get") (i32.const 70))
+
+(module
+  (memory (data "A"))
+  (func $inc
+    (i32.store8
+      (i32.const 0)
+      (i32.add
+        (i32.load8_u (i32.const 0))
+        (i32.const 1)
+      )
+    )
+  )
+  (func $get (result i32)
+    (return (i32.load8_u (i32.const 0)))
+  )
+  (func $main
+    (call $inc)
+    (call $inc)
+    (call $inc)
+  )
+  (start 2)
+  (export "inc" (func $inc))
+  (export "get" (func $get))
+)
+(assert_return (invoke "get") (i32.const 68))
+(invoke "inc")
+(assert_return (invoke "get") (i32.const 69))
+(invoke "inc")
+(assert_return (invoke "get") (i32.const 70))
+
+(module
+  (func $print_i32 (import "spectest" "print") (param i32))
+  (func $main (call $print_i32 (i32.const 1)))
+  (start 1)
+)
+
+(module
+  (func $print_i32 (import "spectest" "print") (param i32))
+  (func $main (call $print_i32 (i32.const 2)))
+  (start $main)
+)
+
+(assert_trap
+  (module (func $main (unreachable)) (start $main))
+  "unreachable"
+)