github.com/psiphon-Labs/psiphon-tunnel-core@v2.0.28+incompatible/psiphon/common/monotime/nanotime_test.go (about)

     1  // Copyright (C) 2016  Arista Networks, Inc.
     2  // Use of this source code is governed by the Apache License 2.0
     3  // that can be found in the COPYING file.
     4  
     5  // Package monotime provides a fast monotonic clock source.
     6  package monotime
     7  
     8  import (
     9  	"testing"
    10  )
    11  
    12  func TestNow(t *testing.T) {
    13  	for i := 0; i < 100; i++ {
    14  		t1 := Now()
    15  		t2 := Now()
    16  		// I honestly thought that we needed >= here, but in some environments
    17  		// two consecutive calls can return the same value!
    18  		if t1 > t2 {
    19  			t.Fatalf("t1=%d should have been less than or equal to t2=%d", t1, t2)
    20  		}
    21  	}
    22  }