42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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#include "dat_paths.h"
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef _WIN32
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#include <process.h>
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#define test_pid _getpid
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#else
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#include <unistd.h>
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#define test_pid getpid
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#endif
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static void write_text(const char *path, const char *text)
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{
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FILE *file = fopen(path, "wb");
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assert(file);
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assert(fwrite(text, 1, strlen(text), file) == strlen(text));
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assert(fclose(file) == 0);
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}
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int main(void)
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{
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char destination[256], temporary[256], contents[32];
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FILE *file;
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int n;
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n = snprintf(destination, sizeof(destination), "build/test-paths-%ld", (long)test_pid());
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assert(n > 0 && (size_t)n < sizeof(destination));
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n = snprintf(temporary, sizeof(temporary), "%s.tmp", destination);
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assert(n > 0 && (size_t)n < sizeof(temporary));
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write_text(destination, "before");
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write_text(temporary, "after");
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assert(dat_replace_file(temporary, destination) == 0);
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file = fopen(destination, "rb");
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assert(file);
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assert(fgets(contents, sizeof(contents), file));
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assert(fclose(file) == 0);
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assert(strcmp(contents, "after") == 0);
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assert(remove(destination) == 0);
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puts("user-state atomic replacement: PASS");
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return 0;
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}
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