52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
#include <criterion/criterion.h>
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#include <criterion/redirect.h>
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#include <stdio.h>
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#include <ctype.h>
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// Testing stdout/stderr
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void redirect_all_std(void) {
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cr_redirect_stdout();
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cr_redirect_stderr();
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}
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Test(redirect, test_outputs, .init = redirect_all_std) {
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fprintf(stdout, "foo");
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fflush(stdout);
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cr_assert_stdout_eq_str("foo");
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fprintf(stderr, "bar");
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fflush(stderr);
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cr_assert_stderr_eq_str("bar");
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}
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// Testing general I/O with sample command-line rot13
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char rot13_char(char c) {
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return isalpha(c) ? (c - 'a' + 13) % 26 + 'a' : c;
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}
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void rot13_io(void) {
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char buf[512];
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size_t read;
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while ((read = fread(buf, 1, sizeof (buf), stdin)) > 0) {
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for (size_t i = 0; i < read; ++i)
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buf[i] = rot13_char(buf[i]);
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fwrite(buf, 1, read, stdout);
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}
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fflush(stdout);
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}
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Test(redirect, rot13, .init = cr_redirect_stdout) {
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FILE* f_stdin = cr_get_redirected_stdin();
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fprintf(f_stdin, "the quick brown fox jumps over the lazy dog");
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fclose(f_stdin);
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rot13_io();
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cr_assert_stdout_eq_str("gur dhvpx oebja sbk whzcf bire gur ynml qbt");
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}
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