github.com/kayoticsully/syncthing@v0.8.9-0.20140724133906-c45a2fdc03f8/model/suppressor_test.go (about)

     1  // Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
     2  // All rights reserved. Use of this source code is governed by an MIT-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package model
     6  
     7  import (
     8  	"testing"
     9  	"time"
    10  )
    11  
    12  func TestSuppressor(t *testing.T) {
    13  	s := suppressor{threshold: 10000}
    14  	t0 := time.Now()
    15  
    16  	t1 := t0
    17  	sup, prev := s.suppress("foo", 10000, t1)
    18  	if sup {
    19  		t.Fatal("Never suppress first change")
    20  	}
    21  	if prev {
    22  		t.Fatal("Incorrect prev status")
    23  	}
    24  
    25  	// bw is 10000 / 10 = 1000
    26  	t1 = t0.Add(10 * time.Second)
    27  	if bw := s.changes["foo"].bandwidth(t1); bw != 1000 {
    28  		t.Errorf("Incorrect bw %d", bw)
    29  	}
    30  	sup, prev = s.suppress("foo", 10000, t1)
    31  	if sup {
    32  		t.Fatal("Should still be fine")
    33  	}
    34  	if prev {
    35  		t.Fatal("Incorrect prev status")
    36  	}
    37  
    38  	// bw is (10000 + 10000) / 11 = 1818
    39  	t1 = t0.Add(11 * time.Second)
    40  	if bw := s.changes["foo"].bandwidth(t1); bw != 1818 {
    41  		t.Errorf("Incorrect bw %d", bw)
    42  	}
    43  	sup, prev = s.suppress("foo", 100500, t1)
    44  	if sup {
    45  		t.Fatal("Should still be fine")
    46  	}
    47  	if prev {
    48  		t.Fatal("Incorrect prev status")
    49  	}
    50  
    51  	// bw is (10000 + 10000 + 100500) / 12 = 10041
    52  	t1 = t0.Add(12 * time.Second)
    53  	if bw := s.changes["foo"].bandwidth(t1); bw != 10041 {
    54  		t.Errorf("Incorrect bw %d", bw)
    55  	}
    56  	sup, prev = s.suppress("foo", 10000000, t1) // value will be ignored
    57  	if !sup {
    58  		t.Fatal("Should be over threshold")
    59  	}
    60  	if prev {
    61  		t.Fatal("Incorrect prev status")
    62  	}
    63  
    64  	// bw is (10000 + 10000 + 100500) / 15 = 8033
    65  	t1 = t0.Add(15 * time.Second)
    66  	if bw := s.changes["foo"].bandwidth(t1); bw != 8033 {
    67  		t.Errorf("Incorrect bw %d", bw)
    68  	}
    69  	sup, prev = s.suppress("foo", 10000000, t1)
    70  	if sup {
    71  		t.Fatal("Should be Ok")
    72  	}
    73  	if !prev {
    74  		t.Fatal("Incorrect prev status")
    75  	}
    76  }
    77  
    78  func TestHistory(t *testing.T) {
    79  	h := changeHistory{}
    80  
    81  	t0 := time.Now()
    82  	h.append(40, t0)
    83  
    84  	if l := len(h.changes); l != 1 {
    85  		t.Errorf("Incorrect history length %d", l)
    86  	}
    87  	if s := h.changes[0].size; s != 40 {
    88  		t.Errorf("Incorrect first record size %d", s)
    89  	}
    90  
    91  	for i := 1; i < MaxChangeHistory; i++ {
    92  		h.append(int64(40+i), t0.Add(time.Duration(i)*time.Second))
    93  	}
    94  
    95  	if l := len(h.changes); l != MaxChangeHistory {
    96  		t.Errorf("Incorrect history length %d", l)
    97  	}
    98  	if s := h.changes[0].size; s != 40 {
    99  		t.Errorf("Incorrect first record size %d", s)
   100  	}
   101  	if s := h.changes[MaxChangeHistory-1].size; s != 40+MaxChangeHistory-1 {
   102  		t.Errorf("Incorrect last record size %d", s)
   103  	}
   104  
   105  	h.append(999, t0.Add(time.Duration(999)*time.Second))
   106  
   107  	if l := len(h.changes); l != MaxChangeHistory {
   108  		t.Errorf("Incorrect history length %d", l)
   109  	}
   110  	if s := h.changes[0].size; s != 41 {
   111  		t.Errorf("Incorrect first record size %d", s)
   112  	}
   113  	if s := h.changes[MaxChangeHistory-1].size; s != 999 {
   114  		t.Errorf("Incorrect last record size %d", s)
   115  	}
   116  
   117  }