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#include "config.h"
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "testing.h"
#define COLOUR_RESET "\033[0m"
#define COLOUR_GREEN "\033[0;32m"
#define COLOUR_YELLOW "\033[0;33m"
static const char *const
ENVVAR_NAME = "NO_COLOR";
static bool
show_colour(void) {
const char *const no_colour = getenv(ENVVAR_NAME);
return !no_colour || no_colour[0] == '\0';
}
/**
* @tags infallible
*/
void
test_start(const char *const name) {
(void)fprintf(stderr, "%s:\n", name);
return;
}
/**
* @tags infallible
*/
void
testing(const char *const message) {
if (show_colour()) {
(void)fprintf(
stderr,
COLOUR_YELLOW "testing" COLOUR_RESET ": %s...",
message
);
} else {
(void)fprintf(
stderr,
"testing: %s...",
message
);
}
return;
}
/**
* @tags infallible
*/
void
test_ok(void) {
if (show_colour()) {
(void)fprintf(stderr, " " COLOUR_GREEN "OK" COLOUR_RESET ".\n");
} else {
(void)fprintf(stderr, " OK.\n");
}
return;
}
#ifdef TEST
int
main(void) {
int rc = 0;
test_start("testing.c");
const int should_overwrite = 1;
if (unsetenv(ENVVAR_NAME)) {
perror("unsetenv(\"NO_COLOR\")");
rc = -1;
goto out;
}
{
testing("unset NO_COLOR");
test_ok();
}
if (setenv(ENVVAR_NAME, "", should_overwrite)) {
perror("setenv(\"NO_COLOR\", \"\", 1)");
rc = -1;
goto out;
}
{
testing("empty NO_COLOR");
test_ok();
}
if (setenv(ENVVAR_NAME, "something", should_overwrite)) {
perror("setenv(\"NO_COLOR\", \"something\", 1)");
rc = -1;
goto out;
}
{
testing("defined NO_COLOR");
test_ok();
}
out:
return !!rc;
}
#endif
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