test/Target/Wasm/missing_header.yaml

# RUN: not yaml2obj %s -o - | not mlir-translate --import-wasm 2>&1 | FileCheck %s

# CHECK: source file does not contain valid Wasm header

--- !WASM
Sections:
  - Type:            TYPE
    Signatures:
      - Index:           0
        ParamTypes:      []
        ReturnTypes:     []
...