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@@ -50,6 +50,49 @@ static const char j1[] = {0x6a, 0x31, 0xa1, 0x6c, 0x00};
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static const char j2[] = {0x6a, 0x32, 0xc3, 0xc3, 0x6c, 0x00};
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static const char j3[] = {0x6a, 0x33, 0xf0, 0x90, 0xf0, 0x00};
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+/* U-Boot uses UTF-16 strings in the EFI context only. */
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+#if CONFIG_IS_ENABLED(EFI_LOADER) && !defined(API_BUILD)
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+static int ut_string16(struct unit_test_state *uts)
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+{
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+ char buf[20];
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+
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+ /* Test length and precision */
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%8.6ls", c2);
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+ ut_asserteq(' ', buf[1]);
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+ ut_assert(!strncmp(&buf[2], d2, 7));
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+ ut_assert(!buf[9]);
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+
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%8.6ls", c4);
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+ ut_asserteq(' ', buf[4]);
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+ ut_assert(!strncmp(&buf[5], d4, 12));
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+ ut_assert(!buf[17]);
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+
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%-8.2ls", c4);
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+ ut_asserteq(' ', buf[8]);
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+ ut_assert(!strncmp(buf, d4, 8));
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+ ut_assert(!buf[14]);
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+
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+ /* Test handling of illegal utf-16 sequences */
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%ls", i1);
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+ ut_asserteq_str("i1?l", buf);
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+
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%ls", i2);
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+ ut_asserteq_str("i2?l", buf);
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+
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+ memset(buf, 0xff, sizeof(buf));
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+ sprintf(buf, "%ls", i3);
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+ ut_asserteq_str("i3?", buf);
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+
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+ return 0;
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+}
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+UNICODE_TEST(ut_string16);
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+#endif
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+
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static int ut_utf8_get(struct unit_test_state *uts)
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{
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const char *s;
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