Wren Turkal
9a1e9c327a
When a byte-oriented stream function touches a stream, that stream should be set to byte-oriented mode if it hasn't been set yet. If it has been set, the opertion should only succeed if the stream is already in byte-oriented mode. Signed-off-by: Wren Turkal <wt@penguintechs.org>
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
#include <assert.h>
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#include <stdio.h>
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#include <wchar.h>
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int test_initial_orientation(void) {
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FILE *f = tmpfile();
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assert(fwide(f, 0) == 0);
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return 0;
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}
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int test_manual_byte_orientation(void) {
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FILE *f = tmpfile();
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// set manually to byte orientation
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assert(fwide(f, -483) == -1);
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// Cannot change to wchar orientation
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assert(fwide(f, 1) == -1);
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fclose(f);
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return 0;
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}
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int test_manual_wchar_orientation(void) {
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FILE *f = tmpfile();
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// set manually to wchar orientation
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assert(fwide(f, 483) == 1);
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// Cannot change to byte orientation
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assert(fwide(f, -1) == 1);
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fclose(f);
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return 0;
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}
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int test_orientation_after_fprintf(void) {
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// open file and write bytes; implicitly setting the bytes orientation
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FILE *f = tmpfile();
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assert(fprintf(f, "blah\n") == 5);
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// Check that bytes orientation is set
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assert(fwide(f, 0) == -1);
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fclose(f);
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return 0;
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}
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int main() {
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int(*tests[])(void) = {
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&test_initial_orientation,
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&test_manual_byte_orientation,
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&test_manual_wchar_orientation,
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&test_orientation_after_fprintf,
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};
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for(int i=0; i<sizeof(tests)/sizeof(int(*)(void)); i++) {
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printf("%d\n", (*tests[i])());
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}
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}
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