84 lines
1.4 KiB
Go
84 lines
1.4 KiB
Go
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package stats
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import (
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"testing"
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)
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func TestRingBuffInvalid(t *testing.T) {
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if _, err := NewRingBuff(0); err == nil {
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t.Fatalf("expected err")
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}
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}
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func TestRingBuffEnqueue(t *testing.T) {
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rb, err := NewRingBuff(3)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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rb.Enqueue(1)
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rb.Enqueue(2)
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rb.Enqueue(3)
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if val := rb.Peek(); val != 3 {
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t.Fatalf("expected: %v, actual: %v", 3, val)
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}
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rb.Enqueue(4)
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rb.Enqueue(5)
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if val := rb.Peek(); val != 5 {
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t.Fatalf("expected: %v, actual: %v", 5, val)
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}
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}
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func TestRingBuffValues(t *testing.T) {
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rb, err := NewRingBuff(3)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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rb.Enqueue(1)
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rb.Enqueue(2)
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rb.Enqueue(3)
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rb.Enqueue(4)
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expected := []interface{}{2, 3, 4}
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if !sliceEq(expected, rb.Values()) {
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t.Fatalf("expected: %v, actual: %v", expected, rb.Values())
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}
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rb.Enqueue(5)
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expected = []interface{}{3, 4, 5}
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if !sliceEq(expected, rb.Values()) {
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t.Fatalf("expected: %v, actual: %v", expected, rb.Values())
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}
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rb.Enqueue(6)
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expected = []interface{}{4, 5, 6}
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if !sliceEq(expected, rb.Values()) {
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t.Fatalf("expected: %v, actual: %v", expected, rb.Values())
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}
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}
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func sliceEq(slice1, slice2 []interface{}) bool {
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if slice1 == nil && slice2 == nil {
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return true
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}
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if slice1 == nil || slice2 == nil {
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return false
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}
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if len(slice1) != len(slice2) {
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return false
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}
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for i := range slice1 {
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if slice1[i] != slice2[i] {
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return false
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}
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}
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return true
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}
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