2021-08-01 14:12:14 +00:00
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from pyodide_build.testing import run_in_pyodide
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@run_in_pyodide(packages=["cffi"])
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2021-08-30 16:17:30 +00:00
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def test_cffi_asprintf():
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2021-08-01 14:12:14 +00:00
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from cffi import FFI
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ffi = FFI()
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ffi.cdef(
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"""int asprintf(char** buf, const char *format, ...); // copy-pasted from the man page"""
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)
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C = ffi.dlopen(None) # loads the entire C namespace
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buf = ffi.new("char**")
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arg1 = ffi.new("char[]", b"wo")
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arg2 = ffi.new("char[]", b"ld")
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C.asprintf(buf, b"hello %sr%s", arg1, arg2)
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assert ffi.string(buf[0]).decode() == "hello world"
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