86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
package util
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import (
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"bytes"
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"testing"
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)
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func TestLimiter_Add(t *testing.T) {
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l := NewLimiter(10)
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if err := l.Add(5); err != nil {
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t.Fatal(err)
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}
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if err := l.Add(5); err != nil {
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t.Fatal(err)
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}
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if err := l.Add(5); err != ErrLimitReached {
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t.Fatalf("expected ErrLimitReached, got %#v", err)
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}
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}
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func TestLimiter_AddSet(t *testing.T) {
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l := NewLimiter(10)
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l.Add(5)
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if l.Value() != 5 {
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t.Fatalf("expected value to be %d, got %d", 5, l.Value())
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}
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l.Set(7)
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if l.Value() != 7 {
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t.Fatalf("expected value to be %d, got %d", 7, l.Value())
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}
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}
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func TestLimitWriter_WriteNoLimiter(t *testing.T) {
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var buf bytes.Buffer
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lw := NewLimitWriter(&buf)
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if _, err := lw.Write(make([]byte, 10)); err != nil {
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t.Fatal(err)
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}
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if _, err := lw.Write(make([]byte, 1)); err != nil {
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t.Fatal(err)
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}
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if buf.Len() != 11 {
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t.Fatalf("expected buffer length to be %d, got %d", 11, buf.Len())
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}
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}
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func TestLimitWriter_WriteOneLimiter(t *testing.T) {
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var buf bytes.Buffer
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l := NewLimiter(10)
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lw := NewLimitWriter(&buf, l)
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if _, err := lw.Write(make([]byte, 10)); err != nil {
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t.Fatal(err)
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}
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if _, err := lw.Write(make([]byte, 1)); err != ErrLimitReached {
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t.Fatalf("expected ErrLimitReached, got %#v", err)
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}
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if buf.Len() != 10 {
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t.Fatalf("expected buffer length to be %d, got %d", 10, buf.Len())
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}
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if l.Value() != 10 {
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t.Fatalf("expected limiter value to be %d, got %d", 10, l.Value())
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}
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}
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func TestLimitWriter_WriteTwoLimiters(t *testing.T) {
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var buf bytes.Buffer
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l1 := NewLimiter(11)
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l2 := NewLimiter(9)
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lw := NewLimitWriter(&buf, l1, l2)
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if _, err := lw.Write(make([]byte, 8)); err != nil {
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t.Fatal(err)
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}
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if _, err := lw.Write(make([]byte, 2)); err != ErrLimitReached {
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t.Fatalf("expected ErrLimitReached, got %#v", err)
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}
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if buf.Len() != 8 {
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t.Fatalf("expected buffer length to be %d, got %d", 8, buf.Len())
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}
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if l1.Value() != 8 {
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t.Fatalf("expected limiter 1 value to be %d, got %d", 8, l1.Value())
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}
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if l2.Value() != 8 {
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t.Fatalf("expected limiter 2 value to be %d, got %d", 8, l2.Value())
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}
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}
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