func TestCounterGenerator(t *testing.T) {
value := int64(100)
var g IntegerGenerator
g = NewCounterGenerator(value)
require.Equal(t, value-1, g.LastInt())
for i := int64(0); i < 5; i++ {
require.Equal(t, value+i, g.NextInt())
require.Equal(t, value+i, g.LastInt())
}
for i := int64(5); i < 5; i++ {
require.Equal(t, fmt.Sprintf("%d", value+i), g.NextString())
require.Equal(t, fmt.Sprintf("%d", value+i), g.LastString())
}
require.Panics(t, func() { g.Mean() })
}
func TestAcknowledgedCounterGenerator(t *testing.T) {
value := int64(100)
total := int64(10)
var g IntegerGenerator
acg := NewAcknowledgedCounterGenerator(value)
g = acg
require.Equal(t, value-1, g.LastInt())
for i := int64(0); i < total/2; i++ {
require.Equal(t, value+i, g.NextInt())
require.Equal(t, value-1, g.LastInt())
}
for i := total / 2; i < total; i++ {
require.Equal(t, fmt.Sprintf("%d", value+i), g.NextString())
require.Equal(t, fmt.Sprintf("%d", value-1), g.LastString())
}
for i := int64(0); i < total; i++ {
acg.Acknowledge(value + i)
require.Equal(t, value+i, g.LastInt())
require.Equal(t, fmt.Sprintf("%d", value+i), g.LastString())
}
require.Equal(t, value+total, acg.NextInt())
require.Panics(t, func() { g.Mean() })
}