shared/format-table: optionally print timestamps without "left"

This just adds the base functionality and some unit tests.
With TABLE_TIMESTAMP_RELATIVE we print "5s ago" and "5s left",
with the new TABLE_TIMESTAMP_LEFT, we print "5s ago" but "5s".
This is more useful for cases where we generally only want to
print timestamps in the future.

1 files changed, 68 insertions, 0 deletions

diff --git a/src/test/test-time-util.c b/src/test/test-time-util.c
index 0fb76391fd..dee012fa2e 100644
--- a/src/test/test-time-util.c
+++ b/src/test/test-time-util.c
@@ -401,6 +401,74 @@ TEST(FORMAT_TIMESTAMP) {
         }
 }
 
+TEST(format_timestamp_relative_full) {
+        char buf[CONST_MAX(FORMAT_TIMESTAMP_MAX, FORMAT_TIMESPAN_MAX)];
+        usec_t x;
+
+        /* Years and months */
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_YEAR + 1*USEC_PER_MONTH);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 year 1 month ago"));
+
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_YEAR + 2*USEC_PER_MONTH);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 year 2 months ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_YEAR + 1*USEC_PER_MONTH);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 years 1 month ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_YEAR + 2*USEC_PER_MONTH);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 years 2 months ago"));
+
+        /* Months and days */
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_MONTH + 1*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 month 1 day ago"));
+
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_MONTH + 2*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 month 2 days ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_MONTH + 1*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 months 1 day ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_MONTH + 2*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 months 2 days ago"));
+
+        /* Weeks and days */
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_WEEK + 1*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 week 1 day ago"));
+
+        x = now(CLOCK_REALTIME) - (1*USEC_PER_WEEK + 2*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "1 week 2 days ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_WEEK + 1*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 weeks 1 day ago"));
+
+        x = now(CLOCK_REALTIME) - (2*USEC_PER_WEEK + 2*USEC_PER_DAY);
+        assert_se(format_timestamp_relative_full(buf, sizeof(buf), x, true));
+        log_debug("%s", buf);
+        assert_se(streq(buf, "2 weeks 2 days ago"));
+}
+
 TEST(format_timestamp_relative) {
         char buf[CONST_MAX(FORMAT_TIMESTAMP_MAX, FORMAT_TIMESPAN_MAX)];
         usec_t x;