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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/vespalib/util/rusage.h>
using namespace vespalib;
TEST("testRUsage")
{
RUsage r1;
EXPECT_EQUAL("", r1.toString());
RUsage r2;
EXPECT_EQUAL(r2.toString(), r1.toString());
RUsage diff = r2-r1;
EXPECT_EQUAL(diff.toString(), r2.toString());
{
RUsage then = RUsage::createSelf(steady_time(7ns));
RUsage now = RUsage::createSelf();
EXPECT_NOT_EQUAL(now.toString(), then.toString());
}
{
RUsage then = RUsage::createChildren(steady_time(1337583ns));
RUsage now = RUsage::createChildren();
EXPECT_NOT_EQUAL(now.toString(), then.toString());
}
{
timeval a, b, c, d, r;
a.tv_usec = 7;
a.tv_sec = 7;
b.tv_usec = 7;
b.tv_sec = 7;
c.tv_usec = 1;
c.tv_sec = 8;
d.tv_usec = 9;
d.tv_sec = 4;
r = a - b;
EXPECT_EQUAL(0, r.tv_sec);
EXPECT_EQUAL(0, r.tv_usec);
r = b - a;
EXPECT_EQUAL(0, r.tv_sec);
EXPECT_EQUAL(0, r.tv_usec);
r = a - c;
EXPECT_EQUAL(-1, r.tv_sec);
EXPECT_EQUAL( 6, r.tv_usec);
r = c - a;
EXPECT_EQUAL(0, r.tv_sec);
EXPECT_EQUAL(999994, r.tv_usec);
r = a - d;
EXPECT_EQUAL(2, r.tv_sec);
EXPECT_EQUAL(999998, r.tv_usec);
r = d - a;
EXPECT_EQUAL(-3, r.tv_sec);
EXPECT_EQUAL( 2, r.tv_usec);
}
}
TEST_MAIN() { TEST_RUN_ALL(); }
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