data segment test

benchmarks/wasm/data.wat

@@ -0,0 +1,17 @@
+(module
+  (type (;0;) (func (param i32) (result i32)))
+  (type (;1;) (func (result i32)))
+  (func (;0;) (type 0) (param i32) (result i32)
+    local.get 0
+    i32.load8_u)
+  (func (;1;) (type 1) (result i32)
+    ;; Call the `load_byte` function with an address of 0
+    i32.const 0
+    call 0)
+  (memory (;0;) 1)
+;;   (start 1) ;; should return 72
+  ;; Define a memory with an initial size of 1 page (64KB)
+  (export "memory" (memory 0))
+  (export "main" (func 1))
+  ;; Initialize memory using the `data` directive at offset 0
+  (data (;0;) (i32.const 0) "Hello"))

src/test/scala/genwasym/TestEval.scala

@@ -45,5 +45,7 @@ class TestEval extends FunSuite {
   test("btree") { testFile("./benchmarks/wasm/btree/2o1u-unlabeled.wat") }
   test("fib") { testFile("./benchmarks/wasm/fib.wat", None, Some(144)) }
 
+  test("data") { testFile("./benchmarks/wasm/data.wat"), None, Some(72) }
+
   // TODO: add wasm spec tests? How to utilize wast files?
 }