JSTests/wasm/regress/validate-number-of-functions-match-declarations.js

const wasmCode = new Uint8Array([
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]);

try {
    new WebAssembly.Module(wasmCode)
    throw new Error('WebAssembly module should have failed to validate');
} catch (error) {
    if (error.message !== "WebAssembly.Module doesn't parse at byte 585: Number of functions parsed (0) does not match the number of declared functions (2) (evaluating 'new WebAssembly.Module(wasmCode)')")
        throw new Error(`Unexpected error: ${error.message}`);
}