github.com/DFWallet/tendermint-cosmos@v0.0.2/types/time/time_test.go (about)

     1  package time
     2  
     3  import (
     4  	"testing"
     5  	"time"
     6  
     7  	"github.com/stretchr/testify/assert"
     8  )
     9  
    10  func TestWeightedMedian(t *testing.T) {
    11  	m := make([]*WeightedTime, 3)
    12  
    13  	t1 := Now()
    14  	t2 := t1.Add(5 * time.Second)
    15  	t3 := t1.Add(10 * time.Second)
    16  
    17  	m[2] = NewWeightedTime(t1, 33) // faulty processes
    18  	m[0] = NewWeightedTime(t2, 40) // correct processes
    19  	m[1] = NewWeightedTime(t3, 27) // correct processes
    20  	totalVotingPower := int64(100)
    21  
    22  	median := WeightedMedian(m, totalVotingPower)
    23  	assert.Equal(t, t2, median)
    24  	// median always returns value between values of correct processes
    25  	assert.Equal(t, true, (median.After(t1) || median.Equal(t1)) &&
    26  		(median.Before(t3) || median.Equal(t3)))
    27  
    28  	m[1] = NewWeightedTime(t1, 40) // correct processes
    29  	m[2] = NewWeightedTime(t2, 27) // correct processes
    30  	m[0] = NewWeightedTime(t3, 33) // faulty processes
    31  	totalVotingPower = int64(100)
    32  
    33  	median = WeightedMedian(m, totalVotingPower)
    34  	assert.Equal(t, t2, median)
    35  	// median always returns value between values of correct processes
    36  	assert.Equal(t, true, (median.After(t1) || median.Equal(t1)) &&
    37  		(median.Before(t2) || median.Equal(t2)))
    38  
    39  	m = make([]*WeightedTime, 8)
    40  	t4 := t1.Add(15 * time.Second)
    41  	t5 := t1.Add(60 * time.Second)
    42  
    43  	m[3] = NewWeightedTime(t1, 10) // correct processes
    44  	m[1] = NewWeightedTime(t2, 10) // correct processes
    45  	m[5] = NewWeightedTime(t2, 10) // correct processes
    46  	m[4] = NewWeightedTime(t3, 23) // faulty processes
    47  	m[0] = NewWeightedTime(t4, 20) // correct processes
    48  	m[7] = NewWeightedTime(t5, 10) // faulty processes
    49  	totalVotingPower = int64(83)
    50  
    51  	median = WeightedMedian(m, totalVotingPower)
    52  	assert.Equal(t, t3, median)
    53  	// median always returns value between values of correct processes
    54  	assert.Equal(t, true, (median.After(t1) || median.Equal(t1)) &&
    55  		(median.Before(t4) || median.Equal(t4)))
    56  }