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time builtin: align output columns on rare cases

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1. When the wall time and cpu time rows has different units
   e.x. running multiple cores
2. When duration is around 1E3 or 1E6 microseconds
   printf("%6.2F", 999.995) gives 1000.00 which is 7 digits
This commit is contained in:
afg
2020-03-10 01:22:19 +08:00
committed by Johannes Altmanninger
parent 84c95324e1
commit f864bd83ad
2 changed files with 46 additions and 11 deletions
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33
src/fish_tests.cpp
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@@ -28,6 +28,7 @@
#include <algorithm>
#include <array>
#include <atomic>
#include <chrono>
#include <cmath>
#include <cstring>
#include <cwchar>
@@ -72,6 +73,7 @@
#include "redirection.h"
#include "screen.h"
#include "signal.h"
#include "timer.h"
#include "tnode.h"
#include "tokenizer.h"
#include "topic_monitor.h"
@@ -5641,6 +5643,36 @@ static void test_topic_monitor_torture() {
for (auto &t : threads) t.join();
}
static void test_timer_format() {
say(L"Testing timer format");
auto t1 = timer_snapshot_t::take();
t1.cpu_fish.ru_utime.tv_usec = 0;
t1.cpu_fish.ru_stime.tv_usec = 0;
t1.cpu_children.ru_utime.tv_usec = 0;
t1.cpu_children.ru_stime.tv_usec = 0;
auto t2 = t1;
t2.cpu_fish.ru_utime.tv_usec = 999995;
t2.cpu_fish.ru_stime.tv_usec = 999994;
t2.cpu_children.ru_utime.tv_usec = 1000;
t2.cpu_children.ru_stime.tv_usec = 500;
t2.wall += std::chrono::microseconds(500);
auto expected =
LR"(
________________________________________________________
Executed in 500.00 micros fish external
usr time 1.00 secs 1.00 secs 1.00 millis
sys time 1.00 secs 1.00 secs 0.50 millis
)"; // (a) (b) (c)
// (a) remaining columns should align even if there are different units
// (b) carry to the next unit when it would overflow %6.2F
// (c) carry to the next unit when the larger one exceeds 1000
std::wstring actual = timer_snapshot_t::print_delta(t1, t2, true);
if (actual != expected) {
err(L"Failed to format timer snapshot\n\Expected: %ls\nActual:%ls\n", expected,
actual.c_str());
}
}
/// Main test.
int main(int argc, char **argv) {
UNUSED(argc);
@@ -5770,6 +5802,7 @@ int main(int argc, char **argv) {
if (should_test_function("normalize")) test_normalize_path();
if (should_test_function("topics")) test_topic_monitor();
if (should_test_function("topics")) test_topic_monitor_torture();
if (should_test_function("timer_format")) test_timer_format();
// history_tests_t::test_history_speed();
say(L"Encountered %d errors in low-level tests", err_count);