func TestMergePNCounterIsCommutative(t *testing.T) {
c1 := pncounter.New()
c1.Increment("foo", 1)
c1.Increment("bar", 1)
c1.Increment("baz", 1)
c2 := pncounter.New()
c2.Increment("foo", 2)
c2.Increment("bar", 0)
c2.Increment("baz", 1)
c3 := c1.Merge(c2)
c4 := c2.Merge(c1)
if c3.Value() != c4.Value() {
t.Errorf("Counter value missmatch:\nExpected: %v\nGot: %v", c3.Value(), c4.Value())
}
}
func TestMergeTwoPNCounter(t *testing.T) {
c1 := pncounter.New()
c1.Increment("foo", 1)
c1.Increment("bar", 1)
c1.Increment("baz", 1)
c2 := pncounter.New()
c2.Increment("foo", 2)
c2.Increment("bar", 0)
c2.Increment("baz", 1)
c3 := c1.Merge(c2)
expectedValue := int64(4)
if c3.Value() != expectedValue {
t.Errorf("Counter value missmatch:\nExpected: %v\nGot: %v", expectedValue, c3.Value())
}
}
func TestPNCounter(t *testing.T) {
c := pncounter.New()
c.Increment("foo", 4)
c.Increment("bar", 1)
c.Decrement("foo", 2)
expectedValue := int64(3)
if c.Value() != expectedValue {
t.Errorf("Counter value missmatch:\nExpected: %v\nGot: %v", expectedValue, c.Value())
}
}