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tests/unix/extra_coverage: Add test for mp_vprintf with bad fmt spec.
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‎tests/unix/extra_coverage.py.exp‎

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@@ -11,6 +11,7 @@ false true
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80000000
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80000000
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abc
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# vstr
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tests
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sts

‎unix/coverage.c‎

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@@ -154,6 +154,7 @@ STATIC mp_obj_t extra_coverage(void) {
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mp_printf(&mp_plat_print, "%u\n", 0x80000000); // should print unsigned
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mp_printf(&mp_plat_print, "%x\n", 0x80000000); // should print unsigned
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mp_printf(&mp_plat_print, "%X\n", 0x80000000); // should print unsigned
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mp_printf(&mp_plat_print, "abc\n%"); // string ends in middle of format specifier
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}
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// vstr

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