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options_test.go
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options_test.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016 Datadog, Inc.
package profiler
import (
"io/ioutil"
"net"
"os"
"path/filepath"
"strconv"
"testing"
"time"
"github.com/DataDog/datadog-go/v5/statsd"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gopkg.in/DataDog/dd-trace-go.v1/internal/globalconfig"
)
// testAPIKey is an example API key for validation purposes
const testAPIKey = "12345678901234567890123456789012"
func TestOptions(t *testing.T) {
t.Run("APIKeyChecks", func(t *testing.T) {
var apikeytests = []struct {
in string
out bool
}{
{"", false}, // Fail, empty string
{"1234567890123456789012345678901", false}, // Fail, too short
{"123456789012345678901234567890123", false}, // Fail, too long
{"12345678901234567890123456789012", true}, // Pass, numeric only
{"abcdefabcdabcdefabcdefabcdefabcd", true}, // Pass, alpha only
{"abcdefabcdabcdef7890abcdef789012", true}, // Pass, alphanumeric
{"abcdefabcdabcdef7890Abcdef789012", false}, // Fail, contains an uppercase
{"abcdefabcdabcdef7890@bcdef789012", false}, // Fail, contains an ASCII symbol
{"abcdefabcdabcdef7890ábcdef789012", false}, // Fail, lowercase extended ASCII
{"abcdefabcdabcdef7890ábcdef78901", false}, // Fail, lowercase extended ASCII, conservative
}
for i, tt := range apikeytests {
assert.Equal(t, tt.out, isAPIKeyValid(tt.in), strconv.Itoa(i)+" : "+tt.in)
}
})
t.Run("WithAgentAddr", func(t *testing.T) {
var cfg config
WithAgentAddr("test:123")(&cfg)
expectedURL := "http://test:123/profiling/v1/input"
assert.Equal(t, expectedURL, cfg.agentURL)
})
t.Run("WithAgentAddr/override", func(t *testing.T) {
os.Setenv("DD_AGENT_HOST", "bad_host")
defer os.Unsetenv("DD_AGENT_HOST")
os.Setenv("DD_TRACE_AGENT_PORT", "bad_port")
defer os.Unsetenv("DD_TRACE_AGENT_PORT")
var cfg config
WithAgentAddr("test:123")(&cfg)
expectedURL := "http://test:123/profiling/v1/input"
assert.Equal(t, expectedURL, cfg.agentURL)
})
t.Run("WithUploadTimeout", func(t *testing.T) {
var cfg config
WithUploadTimeout(5 * time.Second)(&cfg)
assert.Equal(t, 5*time.Second, cfg.uploadTimeout)
})
t.Run("WithAPIKey", func(t *testing.T) {
var cfg config
WithAPIKey(testAPIKey)(&cfg)
assert.Equal(t, testAPIKey, cfg.apiKey)
assert.Equal(t, cfg.apiURL, cfg.targetURL)
})
t.Run("WithAPIKey/override", func(t *testing.T) {
os.Setenv("DD_API_KEY", "apikey")
defer os.Unsetenv("DD_API_KEY")
var testAPIKey = "12345678901234567890123456789012"
var cfg config
WithAPIKey(testAPIKey)(&cfg)
assert.Equal(t, testAPIKey, cfg.apiKey)
})
t.Run("WithURL", func(t *testing.T) {
var cfg config
WithURL("my-url")(&cfg)
assert.Equal(t, "my-url", cfg.apiURL)
})
t.Run("WithPeriod", func(t *testing.T) {
var cfg config
WithPeriod(2 * time.Second)(&cfg)
assert.Equal(t, 2*time.Second, cfg.period)
})
t.Run("CPUDuration", func(t *testing.T) {
var cfg config
CPUDuration(3 * time.Second)(&cfg)
assert.Equal(t, 3*time.Second, cfg.cpuDuration)
})
t.Run("MutexProfileFraction", func(t *testing.T) {
var cfg config
MutexProfileFraction(1)(&cfg)
assert.Equal(t, 1, cfg.mutexFraction)
assert.Contains(t, cfg.types, MutexProfile)
})
t.Run("BlockProfileRate", func(t *testing.T) {
var cfg config
BlockProfileRate(1)(&cfg)
assert.Equal(t, 1, cfg.blockRate)
assert.Contains(t, cfg.types, BlockProfile)
})
t.Run("WithProfileTypes", func(t *testing.T) {
var cfg config
WithProfileTypes(HeapProfile)(&cfg)
_, ok := cfg.types[HeapProfile]
assert.True(t, ok)
assert.Len(t, cfg.types, 2)
})
t.Run("WithService", func(t *testing.T) {
var cfg config
WithService("serviceName")(&cfg)
assert.Equal(t, "serviceName", cfg.service)
})
t.Run("WithService/override", func(t *testing.T) {
os.Setenv("DD_SERVICE", "envService")
defer os.Unsetenv("DD_SERVICE")
cfg, err := defaultConfig()
require.NoError(t, err)
WithService("serviceName")(cfg)
assert.Equal(t, "serviceName", cfg.service)
})
t.Run("WithSite", func(t *testing.T) {
var cfg config
WithSite("datadog.eu")(&cfg)
assert.Equal(t, "https://intake.profile.datadog.eu/v1/input", cfg.apiURL)
})
t.Run("WithSite/override", func(t *testing.T) {
os.Setenv("DD_SITE", "wrong.site")
defer os.Unsetenv("DD_SITE")
cfg, err := defaultConfig()
require.NoError(t, err)
WithSite("datadog.eu")(cfg)
assert.Equal(t, "https://intake.profile.datadog.eu/v1/input", cfg.apiURL)
})
t.Run("WithEnv", func(t *testing.T) {
var cfg config
WithEnv("envName")(&cfg)
assert.Equal(t, "envName", cfg.env)
})
t.Run("WithEnv/override", func(t *testing.T) {
os.Setenv("DD_ENV", "envEnv")
defer os.Unsetenv("DD_ENV")
cfg, err := defaultConfig()
require.NoError(t, err)
WithEnv("envName")(cfg)
assert.Equal(t, "envName", cfg.env)
})
t.Run("WithVersion", func(t *testing.T) {
var cfg config
WithVersion("1.2.3")(&cfg)
assert.Contains(t, cfg.tags, "version:1.2.3")
})
t.Run("WithVersion/override", func(t *testing.T) {
os.Setenv("DD_VERSION", "envVersion")
defer os.Unsetenv("DD_VERSION")
cfg, err := defaultConfig()
require.NoError(t, err)
WithVersion("1.2.3")(cfg)
assert.Contains(t, cfg.tags, "version:1.2.3")
})
t.Run("WithTags", func(t *testing.T) {
var cfg config
WithTags("a:1", "b:2", "c:3")(&cfg)
assert.Contains(t, cfg.tags, "a:1")
assert.Contains(t, cfg.tags, "b:2")
assert.Contains(t, cfg.tags, "c:3")
})
t.Run("WithTags/override", func(t *testing.T) {
os.Setenv("DD_TAGS", "env1:tag1,env2:tag2")
defer os.Unsetenv("DD_TAGS")
cfg, err := defaultConfig()
require.NoError(t, err)
WithTags("a:1", "b:2", "c:3")(cfg)
assert.Contains(t, cfg.tags, "a:1")
assert.Contains(t, cfg.tags, "b:2")
assert.Contains(t, cfg.tags, "c:3")
assert.Contains(t, cfg.tags, "env1:tag1")
assert.Contains(t, cfg.tags, "env2:tag2")
})
}
func TestEnvVars(t *testing.T) {
t.Run("DD_AGENT_HOST", func(t *testing.T) {
os.Setenv("DD_AGENT_HOST", "agent_host_1")
defer os.Unsetenv("DD_AGENT_HOST")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "http://agent_host_1:8126/profiling/v1/input", cfg.agentURL)
})
t.Run("DD_TRACE_AGENT_PORT", func(t *testing.T) {
os.Setenv("DD_TRACE_AGENT_PORT", "6218")
defer os.Unsetenv("DD_TRACE_AGENT_PORT")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "http://localhost:6218/profiling/v1/input", cfg.agentURL)
})
t.Run("DD_PROFILING_UPLOAD_TIMEOUT", func(t *testing.T) {
os.Setenv("DD_PROFILING_UPLOAD_TIMEOUT", "3s")
defer os.Unsetenv("DD_PROFILING_UPLOAD_TIMEOUT")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, 3*time.Second, cfg.uploadTimeout)
})
t.Run("DD_AGENT_HOST+DD_TRACE_AGENT_PORT", func(t *testing.T) {
os.Setenv("DD_AGENT_HOST", "agent_host_1")
defer os.Unsetenv("DD_AGENT_HOST")
os.Setenv("DD_TRACE_AGENT_PORT", "6218")
defer os.Unsetenv("DD_TRACE_AGENT_PORT")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "http://agent_host_1:6218/profiling/v1/input", cfg.agentURL)
})
t.Run("DD_API_KEY", func(t *testing.T) {
os.Setenv("DD_API_KEY", testAPIKey)
defer os.Unsetenv("DD_API_KEY")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, testAPIKey, cfg.apiKey)
})
t.Run("DD_SITE", func(t *testing.T) {
os.Setenv("DD_SITE", "datadog.eu")
defer os.Unsetenv("DD_SITE")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "https://intake.profile.datadog.eu/v1/input", cfg.apiURL)
})
t.Run("DD_ENV", func(t *testing.T) {
os.Setenv("DD_ENV", "someEnv")
defer os.Unsetenv("DD_ENV")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "someEnv", cfg.env)
})
t.Run("DD_SERVICE", func(t *testing.T) {
os.Setenv("DD_SERVICE", "someService")
defer os.Unsetenv("DD_SERVICE")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Equal(t, "someService", cfg.service)
})
t.Run("DD_VERSION", func(t *testing.T) {
os.Setenv("DD_VERSION", "1.2.3")
defer os.Unsetenv("DD_VERSION")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Contains(t, cfg.tags, "version:1.2.3")
})
t.Run("DD_TAGS", func(t *testing.T) {
os.Setenv("DD_TAGS", "a:1,b:2,c:3")
defer os.Unsetenv("DD_TAGS")
cfg, err := defaultConfig()
require.NoError(t, err)
assert.Contains(t, cfg.tags, "a:1")
assert.Contains(t, cfg.tags, "b:2")
assert.Contains(t, cfg.tags, "c:3")
})
}
func TestDefaultConfig(t *testing.T) {
t.Run("base", func(t *testing.T) {
defaultAgentURL := "http://" + net.JoinHostPort(defaultAgentHost, defaultAgentPort) + "/profiling/v1/input"
cfg, err := defaultConfig()
require.NoError(t, err)
assert := assert.New(t)
assert.Equal(defaultAPIURL, cfg.apiURL)
assert.Equal(defaultAgentURL, cfg.agentURL)
assert.Equal(defaultEnv, cfg.env)
assert.Equal(filepath.Base(os.Args[0]), cfg.service)
assert.Equal(len(defaultProfileTypes), len(cfg.types))
for _, pt := range defaultProfileTypes {
_, ok := cfg.types[pt]
assert.True(ok)
}
_, ok := cfg.statsd.(*statsd.NoOpClient)
assert.True(ok)
assert.Equal(DefaultPeriod, cfg.period)
assert.Equal(DefaultDuration, cfg.cpuDuration)
assert.Equal(DefaultMutexFraction, cfg.mutexFraction)
assert.Equal(DefaultBlockRate, cfg.blockRate)
assert.Contains(cfg.tags, "runtime-id:"+globalconfig.RuntimeID())
})
}
func TestAddProfileType(t *testing.T) {
t.Run("default", func(t *testing.T) {
assert := assert.New(t)
cfg, err := defaultConfig()
require.NoError(t, err)
_, ok := cfg.types[MutexProfile]
assert.False(ok)
n := len(cfg.types)
cfg.addProfileType(MutexProfile)
assert.Len(cfg.types, n+1)
_, ok = cfg.types[MutexProfile]
assert.True(ok)
})
t.Run("nil", func(t *testing.T) {
var cfg config
assert := assert.New(t)
assert.Nil(cfg.types)
cfg.addProfileType(MutexProfile)
assert.Len(cfg.types, 1)
_, ok := cfg.types[MutexProfile]
assert.True(ok)
})
}
func TestWith_outputDir(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
// Use env to enable this like a user would.
os.Setenv("DD_PROFILING_OUTPUT_DIR", tmpDir)
defer os.Unsetenv("DD_PROFILING_OUTPUT_DIR")
p, err := unstartedProfiler()
require.NoError(t, err)
bat := batch{
end: time.Now(),
profiles: []*profile{
{name: "foo.pprof", data: []byte("foo")},
{name: "bar.pprof", data: []byte("bar")},
},
}
require.NoError(t, p.outputDir(bat))
files, err := filepath.Glob(filepath.Join(tmpDir, "*", "*.pprof"))
require.NoError(t, err)
fileData := map[string]string{}
for _, file := range files {
data, err := ioutil.ReadFile(file)
require.NoError(t, err)
fileData[filepath.Base(file)] = string(data)
}
want := map[string]string{"foo.pprof": "foo", "bar.pprof": "bar"}
require.Equal(t, want, fileData)
}