#!/bin/sh
# Run from the repo root

WASM=./src/wasm
PASS=0
FAIL=0
TESTS=0

check() {
    TESTS=$((TESTS + 1))
    desc="$1"; shift
    expected="$1"; shift
    output=$("$@" 2>&1)
    if echo "$output" | grep -q "$expected"; then
        PASS=$((PASS + 1))
        echo "  OK   $desc"
    else
        FAIL=$((FAIL + 1))
        echo "  FAIL $desc"
        echo "       expected: $expected"
        echo "       got: $output"
    fi
}

echo "=== wasm runtime tests ==="

check "no arguments"    "Usage:"               $WASM
check "valid wasm"      "Valid wasm file"       $WASM test/wasm/valid.wasm
check "bad magic"       "invalid wasm magic"    $WASM test/wasm/badmagic.wasm
check "bad version"     "unsupported wasm"      $WASM test/wasm/badver.wasm
check "section list"    "(Type)"                $WASM test/wasm/valid.wasm
check "type no params" "() -> (i32)"           $WASM test/wasm/valid.wasm
check "type two params" "(i32, i32) -> (i32)"  $WASM test/wasm/add.wasm
check "import parsed"  'import "env"."print_i32"' $WASM test/wasm/import.wasm
check "func index"     "func 0 -> type 0 (imported)" $WASM test/wasm/import.wasm
check "signature"      "i32 add(i32, i32)"     $WASM test/wasm/add.wasm

echo ""
echo "Results: $PASS/$TESTS passed, $FAIL failed"
[ "$FAIL" -eq 0 ] && exit 0 || exit 1