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package sarama
import (
"reflect"
"testing"
)
func TestBalanceStrategyRange(t *testing.T) {
tests := []struct {
members map[string][]string
topics map[string][]int32
expected BalanceStrategyPlan
}{
{
members: map[string][]string{"M1": {"T1", "T2"}, "M2": {"T1", "T2"}},
topics: map[string][]int32{"T1": {0, 1, 2, 3}, "T2": {0, 1, 2, 3}},
expected: BalanceStrategyPlan{
"M1": map[string][]int32{"T1": {0, 1}, "T2": {2, 3}},
"M2": map[string][]int32{"T1": {2, 3}, "T2": {0, 1}},
},
},
{
members: map[string][]string{"M1": {"T1", "T2"}, "M2": {"T1", "T2"}},
topics: map[string][]int32{"T1": {0, 1, 2}, "T2": {0, 1, 2}},
expected: BalanceStrategyPlan{
"M1": map[string][]int32{"T1": {0, 1}, "T2": {2}},
"M2": map[string][]int32{"T1": {2}, "T2": {0, 1}},
},
},
{
members: map[string][]string{"M1": {"T1"}, "M2": {"T1", "T2"}},
topics: map[string][]int32{"T1": {0, 1}, "T2": {0, 1}},
expected: BalanceStrategyPlan{
"M1": map[string][]int32{"T1": {0}},
"M2": map[string][]int32{"T1": {1}, "T2": {0, 1}},
},
},
}
strategy := BalanceStrategyRange
if strategy.Name() != "range" {
t.Errorf("Unexpected stategy name\nexpected: range\nactual: %v", strategy.Name())
}
for _, test := range tests {
members := make(map[string]ConsumerGroupMemberMetadata)
for memberID, topics := range test.members {
members[memberID] = ConsumerGroupMemberMetadata{Topics: topics}
}
actual, err := strategy.Plan(members, test.topics)
if err != nil {
t.Errorf("Unexpected error %v", err)
} else if !reflect.DeepEqual(actual, test.expected) {
t.Errorf("Plan does not match expectation\nexpected: %#v\nactual: %#v", test.expected, actual)
}
}
}
func TestBalanceStrategyRoundRobin(t *testing.T) {
tests := []struct {
members map[string][]string
topics map[string][]int32
expected BalanceStrategyPlan
}{
{
members: map[string][]string{"M1": {"T1", "T2"}, "M2": {"T1", "T2"}},
topics: map[string][]int32{"T1": {0, 1, 2, 3}, "T2": {0, 1, 2, 3}},
expected: BalanceStrategyPlan{
"M1": map[string][]int32{"T1": {0, 2}, "T2": {1, 3}},
"M2": map[string][]int32{"T1": {1, 3}, "T2": {0, 2}},
},
},
{
members: map[string][]string{"M1": {"T1", "T2"}, "M2": {"T1", "T2"}},
topics: map[string][]int32{"T1": {0, 1, 2}, "T2": {0, 1, 2}},
expected: BalanceStrategyPlan{
"M1": map[string][]int32{"T1": {0, 2}, "T2": {1}},
"M2": map[string][]int32{"T1": {1}, "T2": {0, 2}},
},
},
}
strategy := BalanceStrategyRoundRobin
if strategy.Name() != "roundrobin" {
t.Errorf("Unexpected stategy name\nexpected: range\nactual: %v", strategy.Name())
}
for _, test := range tests {
members := make(map[string]ConsumerGroupMemberMetadata)
for memberID, topics := range test.members {
members[memberID] = ConsumerGroupMemberMetadata{Topics: topics}
}
actual, err := strategy.Plan(members, test.topics)
if err != nil {
t.Errorf("Unexpected error %v", err)
} else if !reflect.DeepEqual(actual, test.expected) {
t.Errorf("Plan does not match expectation\nexpected: %#v\nactual: %#v", test.expected, actual)
}
}
}
|
