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Merge pull request #119 from oliver006/oh_cluster_tests
Add cluster tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| redis://localhost:6379 | ||
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| redis://localhost:7000,password,alias | ||
| redis://localhost:7000,second-pwd |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package exporter | ||
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| import ( | ||
| "encoding/csv" | ||
| "os" | ||
| "strings" | ||
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| "github.com/cloudfoundry-community/go-cfenv" | ||
| log "github.com/sirupsen/logrus" | ||
| ) | ||
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| // loadRedisArgs loads the configuration for which redis hosts to monitor from either | ||
| // the environment or as passed from program arguments. Returns the list of host addrs, | ||
| // passwords, and their aliases. | ||
| func LoadRedisArgs(addr, password, alias, separator string) ([]string, []string, []string) { | ||
| if addr == "" { | ||
| addr = "redis://localhost:6379" | ||
| } | ||
| addrs := strings.Split(addr, separator) | ||
| passwords := strings.Split(password, separator) | ||
| for len(passwords) < len(addrs) { | ||
| passwords = append(passwords, passwords[0]) | ||
| } | ||
| aliases := strings.Split(alias, separator) | ||
| for len(aliases) < len(addrs) { | ||
| aliases = append(aliases, aliases[0]) | ||
| } | ||
| return addrs, passwords, aliases | ||
| } | ||
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| // loadRedisFile opens the specified file and loads the configuration for which redis | ||
| // hosts to monitor. Returns the list of hosts addrs, passwords, and their aliases. | ||
| func LoadRedisFile(fileName string) ([]string, []string, []string, error) { | ||
| var addrs []string | ||
| var passwords []string | ||
| var aliases []string | ||
| file, err := os.Open(fileName) | ||
| if err != nil { | ||
| return nil, nil, nil, err | ||
| } | ||
| r := csv.NewReader(file) | ||
| r.FieldsPerRecord = -1 | ||
| records, err := r.ReadAll() | ||
| if err != nil { | ||
| return nil, nil, nil, err | ||
| } | ||
| file.Close() | ||
| // For each line, test if it contains an optional password and alias and provide them, | ||
| // else give them empty strings | ||
| for _, record := range records { | ||
| length := len(record) | ||
| switch length { | ||
| case 3: | ||
| addrs = append(addrs, record[0]) | ||
| passwords = append(passwords, record[1]) | ||
| aliases = append(aliases, record[2]) | ||
| case 2: | ||
| addrs = append(addrs, record[0]) | ||
| passwords = append(passwords, record[1]) | ||
| aliases = append(aliases, "") | ||
| case 1: | ||
| addrs = append(addrs, record[0]) | ||
| passwords = append(passwords, "") | ||
| aliases = append(aliases, "") | ||
| } | ||
| } | ||
| return addrs, passwords, aliases, nil | ||
| } | ||
|
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| func GetCloudFoundryRedisBindings() (addrs, passwords, aliases []string) { | ||
| if !cfenv.IsRunningOnCF() { | ||
| return | ||
| } | ||
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| appEnv, err := cfenv.Current() | ||
| if err != nil { | ||
| log.Warnln("Unable to get current CF environment", err) | ||
| return | ||
| } | ||
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| redisServices, err := appEnv.Services.WithTag("redis") | ||
| if err != nil { | ||
| log.Warnln("Error while getting redis services", err) | ||
| return | ||
| } | ||
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| for _, redisService := range redisServices { | ||
| credentials := redisService.Credentials | ||
| addr := credentials["hostname"].(string) + ":" + credentials["port"].(string) | ||
| password := credentials["password"].(string) | ||
| alias := redisService.Name | ||
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| addrs = append(addrs, addr) | ||
| passwords = append(passwords, password) | ||
| aliases = append(aliases, alias) | ||
| } | ||
|
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| return | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package exporter | ||
|
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| import ( | ||
| "log" | ||
| "testing" | ||
| ) | ||
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| func cmpStringArrays(a1, a2 []string) bool { | ||
| if len(a1) != len(a2) { | ||
| return false | ||
| } | ||
| for n := range a1 { | ||
| if a1[n] != a2[n] { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
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| func TestLoadRedisArgs(t *testing.T) { | ||
| log.Println("TestLoadRedisArgs()") | ||
| tests := []struct { | ||
| addr, pwd, alias, sep string | ||
| wantAddr, wantPwds, wantAliases []string | ||
| }{ | ||
| { | ||
| addr: "", | ||
| sep: ",", | ||
| wantAddr: []string{"redis://localhost:6379"}, | ||
| wantPwds: []string{""}, | ||
| wantAliases: []string{""}, | ||
| }, | ||
| { | ||
| addr: "redis://localhost:6379", | ||
| sep: ",", | ||
| wantAddr: []string{"redis://localhost:6379"}, | ||
| wantPwds: []string{""}, | ||
| wantAliases: []string{""}, | ||
| }, | ||
| { | ||
| addr: "redis://localhost:6379,redis://localhost:7000", | ||
| sep: ",", | ||
| wantAddr: []string{"redis://localhost:6379", "redis://localhost:7000"}, | ||
| wantPwds: []string{"", ""}, | ||
| wantAliases: []string{"", ""}, | ||
| }, | ||
| { | ||
| addr: "redis://localhost:6379,redis://localhost:7000,redis://localhost:7001", | ||
| sep: ",", | ||
| wantAddr: []string{"redis://localhost:6379", "redis://localhost:7000", "redis://localhost:7001"}, | ||
| wantPwds: []string{"", "", ""}, | ||
| wantAliases: []string{"", "", ""}, | ||
| }, | ||
| { | ||
| alias: "host-1", | ||
| sep: ",", | ||
| wantAddr: []string{"redis://localhost:6379"}, | ||
| wantPwds: []string{""}, | ||
| wantAliases: []string{"host-1"}, | ||
| }, | ||
| } | ||
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| for _, test := range tests { | ||
| sep := test.sep | ||
| addrs, pwds, aliases := LoadRedisArgs(test.addr, test.pwd, test.alias, sep) | ||
| if !cmpStringArrays(addrs, test.wantAddr) { | ||
| t.Errorf("addrs not matching wantAliases, got: %v want: %v", addrs, test.wantAddr) | ||
| } | ||
| if !cmpStringArrays(pwds, test.wantPwds) { | ||
| t.Errorf("pwds not matching wantAliases, got: %v want: %v", pwds, test.wantPwds) | ||
| } | ||
| if !cmpStringArrays(aliases, test.wantAliases) { | ||
| t.Errorf("aliases not matching wantAliases, got: %v want: %v", aliases, test.wantAliases) | ||
| } | ||
| } | ||
| } | ||
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| func TestLoadRedisFile(t *testing.T) { | ||
| if _, _, _, err := LoadRedisFile("doesnt-exist.txt"); err == nil { | ||
| t.Errorf("should have failed opening non existing file") | ||
| return | ||
| } | ||
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| addrs, pwds, aliases, err := LoadRedisFile("../contrib/sample_redis_hosts_file.txt") | ||
| if err != nil { | ||
| t.Errorf("LoadRedisFile() failed, err: %s", err) | ||
| return | ||
| } | ||
| log.Printf("aliases: %v \n", aliases) | ||
| if !cmpStringArrays(addrs, []string{"redis://localhost:6379", "redis://localhost:7000", "redis://localhost:7000"}) { | ||
| t.Errorf("addrs not matching want") | ||
| } | ||
| if !cmpStringArrays(pwds, []string{"", "password", "second-pwd"}) { | ||
| t.Errorf("pwds not matching want") | ||
| } | ||
| if !cmpStringArrays(aliases, []string{"", "alias", ""}) { | ||
| t.Errorf("aliases not matching want") | ||
| } | ||
| } | ||
|
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| func TestGetCloudFoundryRedisBindings(t *testing.T) { | ||
| GetCloudFoundryRedisBindings() | ||
| } |
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