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app_config_test.go
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app_config_test.go
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package bconf_test
import (
"errors"
"fmt"
"os"
"strings"
"testing"
"time"
"github.com/rheisen/bconf"
"github.com/rheisen/bconf/bconfconst"
)
func TestAppConfigHelpString(t *testing.T) {
appConfig := createBaseAppConfig()
const stringFieldKey = "string"
stringField := &bconf.Field{
Key: stringFieldKey,
Type: bconfconst.String,
Description: "string field description",
DefaultGenerator: func() (any, error) {
return "some_value", nil
},
Enumeration: []any{"some_value", "other_value", "another_value"},
}
const secretStringFieldKey = "string_secret"
secretStringField := &bconf.Field{
Key: secretStringFieldKey,
Type: bconfconst.String,
Sensitive: true,
Default: "some-super-secret-value",
Validator: func(fieldValue any) error {
return nil
},
}
const intFieldKey = "int"
intField := &bconf.Field{
Key: intFieldKey,
Type: bconfconst.Int,
Required: true,
}
const durationFieldKey = "duration"
durationField := &bconf.Field{
Key: durationFieldKey,
Type: bconfconst.Duration,
Required: true,
}
const defaultFieldSetKey = "default"
defaultFieldSet := &bconf.FieldSet{
Key: defaultFieldSetKey,
Fields: bconf.Fields{stringField, secretStringField, intField},
}
const conditionalFieldSetKey = "conditional"
conditionalFieldSet := &bconf.FieldSet{
Key: conditionalFieldSetKey,
Fields: bconf.Fields{durationField},
LoadConditions: bconf.LoadConditions{
&bconf.FieldCondition{
FieldSetKey: defaultFieldSetKey,
FieldKey: stringFieldKey,
Condition: func(fieldValue any) (bool, error) {
val, ok := fieldValue.(string)
if !ok {
return false, fmt.Errorf("unexpected field value type")
}
return val == "some_value", nil
},
},
},
}
if errs := appConfig.AddFieldSet(defaultFieldSet); len(errs) > 0 {
t.Fatalf("unexpected errors adding field-set: %v", errs)
}
if errs := appConfig.AddFieldSet(conditionalFieldSet); len(errs) > 0 {
t.Fatalf("unexpected errors adding conditional field-set: %v", errs)
}
t.Log(appConfig.HelpString())
}
func TestAppConfig(t *testing.T) {
const appName = "bconf_test_app"
const appDescription = "Test-App is an HTTP server providing access to weather data"
appConfig := bconf.NewAppConfig(
appName,
appDescription,
)
if appConfig.AppName() != appName {
t.Errorf("unexpected value returned from AppName(): '%s'", appConfig.AppName())
}
if appConfig.AppDescription() != appDescription {
t.Errorf("unexpected value returned from AppDescription(): '%s'", appConfig.AppDescription())
}
configLoaders := []bconf.Loader{
&bconf.EnvironmentLoader{KeyPrefix: "bconf_test"},
}
if errs := appConfig.SetLoaders(configLoaders...); len(errs) > 0 {
t.Fatalf("unexpected errors setting loaders: %v", errs)
}
const appGeneratedID = "generated-default"
appFieldSet := &bconf.FieldSet{
Key: "app",
Fields: bconf.Fields{
{
Key: "id",
Type: bconf.String,
Description: "Application identifier for use in application log messages and tracing",
DefaultGenerator: func() (any, error) {
return appGeneratedID, nil
},
},
{
Key: "read_timeout",
Type: bconf.Duration,
Description: "Application read timeout for HTTP requests",
Default: 5 * time.Second,
},
{
Key: "connect_sqlite",
Type: bconf.Bool,
Default: true,
},
},
}
conditionalFieldSet := &bconf.FieldSet{
Key: "sqlite",
Fields: bconf.Fields{
{
Key: "server",
Type: bconfconst.String,
Required: true,
},
},
LoadConditions: bconf.LoadConditions{
&bconf.FieldCondition{
FieldSetKey: "app",
FieldKey: "connect_sqlite",
Condition: func(fieldValue any) (bool, error) {
val, ok := fieldValue.(bool)
if !ok {
return false, fmt.Errorf("unexpected field-type value")
}
return val, nil
},
},
},
}
if errs := appConfig.AddFieldSet(conditionalFieldSet); len(errs) < 1 {
t.Fatalf("errors expected when adding a field set with an unmet load condition dependency")
}
if errs := appConfig.AddFieldSet(appFieldSet); len(errs) > 0 {
t.Fatalf("unexpected errors adding field set: %v", errs)
}
if errs := appConfig.AddFieldSet(appFieldSet); len(errs) < 1 {
t.Fatalf("errors expected when adding field set with duplicate key: %s", appFieldSet.Key)
}
if errs := appConfig.AddFieldSet(conditionalFieldSet); len(errs) > 1 {
t.Fatalf("unexpected errors adding conditional field-set: %v", errs)
}
if errs := appConfig.Register(false); len(errs) < 1 {
t.Fatalf("errors expected for unset required fields")
}
os.Setenv("BCONF_TEST_SQLITE_SERVER", "localhost")
if errs := appConfig.Register(false); len(errs) > 0 {
t.Fatalf("unexpected errors registering application configuration: %v", errs)
}
}
func TestBadAppConfigFields(t *testing.T) {
appConfig := bconf.NewAppConfig(
"bconf_test_app",
"Test-App is an HTTP server providing access to weather data",
)
configLoadersWithDuplicates := []bconf.Loader{
&bconf.EnvironmentLoader{KeyPrefix: "bconf_test"},
&bconf.EnvironmentLoader{},
}
if errs := appConfig.SetLoaders(configLoadersWithDuplicates...); len(errs) < 1 {
t.Fatalf("expected error setting loaders with duplicates")
}
configLoaders := []bconf.Loader{
&bconf.EnvironmentLoader{KeyPrefix: "bconf_test"},
}
if errs := appConfig.SetLoaders(configLoaders...); len(errs) > 0 {
t.Fatalf("unexpected errors setting loaders: %v", errs)
}
idFieldInvalidDefaultGenerator := &bconf.Field{
Key: "id",
Type: bconfconst.Int,
Description: "Application identifier for use in application log messages and tracing",
DefaultGenerator: func() (any, error) {
return "generated-default", nil
},
}
readTimeoutFieldInvalidDefault := &bconf.Field{
Key: "read_timeout",
Type: bconfconst.Duration,
Description: "Application read timeout for HTTP requests",
Default: 5,
}
emptyFieldSet := &bconf.FieldSet{}
if errs := appConfig.AddFieldSet(emptyFieldSet); len(errs) < 1 {
t.Fatalf("expected error adding empty field set")
}
invalidAppFieldSet := &bconf.FieldSet{
Key: "app",
Fields: bconf.Fields{
idFieldInvalidDefaultGenerator,
readTimeoutFieldInvalidDefault,
},
}
if errs := appConfig.AddFieldSet(invalidAppFieldSet); len(errs) < 1 {
t.Fatalf("expected errors adding field set with invalid fields")
}
fieldSetWithEmptyField := &bconf.FieldSet{
Key: "default",
Fields: bconf.Fields{
{},
},
}
if errs := appConfig.AddFieldSet(fieldSetWithEmptyField); len(errs) < 2 {
t.Fatalf("expected at least two errors adding a field-set with an empty field")
}
fieldWithDefaultAndRequiredSet := &bconf.Field{
Key: "log_level",
Type: bconfconst.String,
Default: "info",
Required: true,
}
fieldWithDefaultNotInEnumeration := &bconf.Field{
Key: "log_level",
Type: bconfconst.String,
Default: "fatal",
Enumeration: []any{"debug", "info", "warn", "error"},
}
fieldWithGeneratedDefaultNotInEnumeration := &bconf.Field{
Key: "log_level",
Type: bconfconst.String,
DefaultGenerator: func() (any, error) {
return "fatal", nil
},
Enumeration: []any{"debug", "info", "warn", "error"},
}
fieldSetWithInvalidField := &bconf.FieldSet{
Key: "default",
Fields: bconf.Fields{fieldWithDefaultAndRequiredSet},
}
if errs := appConfig.AddFieldSet(fieldSetWithInvalidField); len(errs) < 1 {
t.Fatalf("expected an error adding field with default and required set")
}
fieldSetWithInvalidField.Fields = bconf.Fields{fieldWithDefaultNotInEnumeration}
if errs := appConfig.AddFieldSet(fieldSetWithInvalidField); len(errs) < 1 {
t.Fatalf("expected an error adding field with default value not in enumeration")
}
fieldSetWithInvalidField.Fields = bconf.Fields{fieldWithGeneratedDefaultNotInEnumeration}
if errs := appConfig.AddFieldSet(fieldSetWithInvalidField); len(errs) < 1 {
t.Fatalf("expected an error adding field with generated default value not in enumeration")
}
}
func TestAppConfigWithLoadConditions(t *testing.T) {
appConfig := createBaseAppConfig()
const defaultFieldSetKey = "default"
const defaultFieldSetLoadAppOneKey = "load_app_one"
const defaultFieldSetLoadAppTwoKey = "load_app_two"
loadAppOneField := &bconf.Field{
Key: defaultFieldSetLoadAppOneKey,
Type: bconfconst.Bool,
Required: true,
}
defaultFieldSet := &bconf.FieldSet{
Key: "default",
Fields: bconf.Fields{loadAppOneField},
}
fieldSetWithLoadCondition := &bconf.FieldSet{
Key: "app_one",
Fields: bconf.Fields{
{
Key: "svc_database_host",
Type: bconfconst.String,
Required: true,
},
},
LoadConditions: bconf.LoadConditions{
&bconf.FieldCondition{
FieldSetKey: defaultFieldSetKey,
FieldKey: defaultFieldSetLoadAppOneKey,
Condition: func(fieldValue any) (bool, error) {
return true, nil
},
},
},
}
fieldSetWithUnmetLoadCondition := &bconf.FieldSet{
Key: "app_two",
Fields: bconf.Fields{},
LoadConditions: bconf.LoadConditions{
&bconf.FieldCondition{
FieldSetKey: defaultFieldSetKey,
FieldKey: defaultFieldSetLoadAppTwoKey,
Condition: func(fieldValue any) (bool, error) {
return true, nil
},
},
},
}
fieldSetWithInvalidLoadCondition := &bconf.FieldSet{
Key: "app_three",
Fields: bconf.Fields{},
LoadConditions: bconf.LoadConditions{
&bconf.FieldCondition{
FieldSetKey: defaultFieldSetKey,
Condition: func(fieldValue any) (bool, error) {
return true, nil
},
},
},
}
if errs := appConfig.AddFieldSet(fieldSetWithLoadCondition); len(errs) < 1 {
t.Fatalf("expected error adding field set with unmet field-set load condition")
}
if errs := appConfig.AddFieldSet(defaultFieldSet); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding default field-set: %v", errs)
}
if errs := appConfig.AddFieldSet(fieldSetWithUnmetLoadCondition); len(errs) < 1 {
t.Fatalf("expected error adding field set with unmet field load condition")
}
if errs := appConfig.AddFieldSet(fieldSetWithLoadCondition); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field set with valid load condition: %v", errs)
}
_ = os.Setenv("DEFAULT_LOAD_APP_ONE", "true")
_ = os.Setenv("APP_ONE_SVC_DATABASE_HOST", "localhost")
if errs := appConfig.Register(false); len(errs) > 0 {
t.Fatalf("unexpected error(s) loading field set with valid load condition and required field: %v", errs)
}
if errs := appConfig.AddFieldSet(fieldSetWithInvalidLoadCondition); len(errs) < 1 {
t.Fatalf("expected error adding field set with invalid load condition")
}
}
func TestAppConfigWithFieldLoadConditions(t *testing.T) {
appConfig := createBaseAppConfig()
const fieldSetOneKey = "one"
const fieldSetTwoKey = "two"
const fieldSetThreeKey = "three"
const fieldSetFourKey = "four"
const fieldAKey = "a"
const fieldBKey = "b"
const fieldCKey = "c"
const fieldDKey = "d"
const fieldEKey = "e"
const fieldFKey = "f"
const fieldGKey = "g"
const fieldBEnvValue = "some_str"
const fieldDEnvValue = "should_not_load"
os.Setenv(strings.ToUpper(fmt.Sprintf("%s_%s", fieldSetOneKey, fieldBKey)), fieldBEnvValue)
os.Setenv(strings.ToUpper(fmt.Sprintf("%s_%s", fieldSetOneKey, fieldDKey)), fieldDEnvValue)
// test field load condition w/ invalid field-set key
// test help string output with no field-set key
// test help string output with field-set key
// test conditionally required field cannot be unset
fieldSetWithInternalFieldDependencies := bconf.FSB().Key(fieldSetOneKey).Fields(
bconf.FB().Key(fieldAKey).Type(bconf.String).Default("postgres").Create(),
bconf.FB().Key(fieldBKey).Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey(fieldAKey).Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create(),
bconf.FB().Key(fieldCKey).Type(bconf.String).LoadConditions(
bconf.
FCB().
FieldKey(fieldAKey).
FieldSetKey(fieldSetOneKey).
Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create(),
bconf.FB().Key(fieldDKey).Type(bconf.String).Default("should_not_be_overridden").LoadConditions(
bconf.FCB().FieldKey(fieldAKey).Condition(func(val any) (bool, error) {
return false, nil
}).Create(),
).Create(),
).Create()
fieldSetWithOtherFieldSetDependencies := bconf.FSB().Key(fieldSetTwoKey).Fields(
bconf.FB().Key(fieldEKey).Type(bconf.String).Create(),
).Create()
errs := appConfig.AddFieldSets(fieldSetWithInternalFieldDependencies, fieldSetWithOtherFieldSetDependencies)
if len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-sets: %v", errs)
}
if errs := appConfig.Register(false); len(errs) > 0 {
t.Fatalf("unexpected error(s) loading field set with valid load condition and required field: %v", errs)
}
foundBValue, _ := appConfig.GetString(fieldSetOneKey, fieldBKey)
if foundBValue != fieldBEnvValue {
t.Errorf("unexpected value found for field B: '%s'", foundBValue)
}
foundDValue, _ := appConfig.GetString(fieldSetOneKey, fieldDKey)
if foundDValue == fieldDEnvValue {
t.Errorf("unexpected value found for field D: '%s'", fieldDEnvValue)
}
fieldSetWithMissingInternalFieldDependencies := bconf.FSB().Key(fieldSetThreeKey).Fields(
bconf.FB().Key(fieldFKey).Type(bconf.String).Create(),
bconf.FB().Key(fieldGKey).Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey(fieldAKey).Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create(),
).Create()
fieldSetWithMissingExternalFieldDependencies := bconf.FSB().Key(fieldSetFourKey).Fields(
bconf.FB().Key(fieldAKey).Type(bconf.String).LoadConditions(
bconf.FCB().FieldSetKey("missing").FieldKey(fieldBKey).Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create(),
).Create()
if errs := appConfig.AddFieldSets(fieldSetWithMissingInternalFieldDependencies); len(errs) < 1 {
t.Fatalf("expected error adding field set with missing internal field dependencies")
} else if !strings.Contains(errs[0].Error(), "field-set field not found") {
t.Errorf("unexpected error adding field set with missing internal field dependencies: '%s'", errs[0])
}
if errs := appConfig.AddFieldSet(fieldSetWithMissingExternalFieldDependencies); len(errs) < 1 {
t.Fatalf("expected error adding field set with missing external field dependencies")
} else if !strings.Contains(errs[0].Error(), "field-set dependency not found") {
t.Errorf("unexpected error adding field set with missing external field dependencies: '%s'", errs[0])
}
}
func TestAppConfigAddFieldSets(t *testing.T) {
appConfig := createBaseAppConfig()
fieldSetOne := &bconf.FieldSet{
Key: "one",
Fields: bconf.Fields{},
}
fieldSetTwo := &bconf.FieldSet{
Key: "two",
Fields: bconf.Fields{},
}
fieldSetThree := &bconf.FieldSet{
Key: "three",
Fields: bconf.Fields{},
}
fieldSetFour := &bconf.FieldSet{
Fields: bconf.Fields{},
}
if errs := appConfig.AddFieldSets(fieldSetOne, fieldSetTwo); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-sets: %v", errs)
}
if errs := appConfig.AddFieldSets(fieldSetThree, fieldSetFour); len(errs) < 1 {
t.Fatalf("expected an error adding field-set with missing key")
} else if !strings.Contains(errs[0].Error(), "field-set key required") {
t.Fatalf("unexpected error message: %s", errs[0])
}
if keys := appConfig.GetFieldSetKeys(); len(keys) != 2 {
t.Fatalf("unexpected number of field-sets found on app config: %d", len(keys))
}
}
func TestAppConfigAddField(t *testing.T) {
appConfig := createBaseAppConfig()
fieldSetOne := &bconf.FieldSet{
Key: "one",
Fields: bconf.Fields{},
}
idFieldKey := "id"
idFieldGeneratedDefaultValue := "generated-default-value"
idField := &bconf.Field{
Key: idFieldKey,
Type: bconf.String,
Description: "Application identifier for use in application log messages and tracing",
DefaultGenerator: func() (any, error) {
return idFieldGeneratedDefaultValue, nil
},
}
fieldWithGenerateDefaultError := &bconf.Field{
Key: "field_generate_default_error",
Type: bconf.String,
DefaultGenerator: func() (any, error) {
return "", errors.New("generated error")
},
}
fieldMissingFieldType := &bconf.Field{
Key: "field_missing_field_type",
}
fieldMissingLoadCondition := bconf.FB().Key("field_missing_load_condition").Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey("missing_key").Condition(
func(val any) (bool, error) {
return true, nil
},
).Create(),
).Create()
if errs := appConfig.AddFieldSets(fieldSetOne); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-sets: %v", errs)
}
if errs := appConfig.AddField("one", idField); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field: %v", errs)
}
if errs := appConfig.AddField("one", idField); len(errs) < 1 {
t.Fatalf("expected error trying to add duplicate field to field-set")
}
if errs := appConfig.AddField("undefined_field_set_key", idField); len(errs) < 1 {
t.Fatalf("expected error trying to add field to undefined field-set")
}
if errs := appConfig.AddField("one", fieldWithGenerateDefaultError); len(errs) < 1 {
t.Fatalf("expected error trying to add field with bad generated default")
}
if errs := appConfig.AddField("one", fieldMissingFieldType); len(errs) < 1 {
t.Fatalf("expected error trying to add field with missing field-type")
}
if errs := appConfig.AddField("one", fieldMissingLoadCondition); len(errs) < 1 {
t.Fatalf("expected error trying to add field with missing load condition")
}
}
func TestAppConfigLoadFieldSet(t *testing.T) {
appConfig := createBaseAppConfig()
appConfig.Register(false)
errs := appConfig.LoadFieldSet("field_set_key")
if len(errs) < 1 {
t.Fatalf("unexpected errors length when loading non-existent field-set: %d", len(errs))
}
if !strings.Contains(errs[0].Error(), "field-set with key 'field_set_key' not found") {
t.Fatalf("unexpected error message: %s", errs[0])
}
errs = appConfig.AddFieldSet(bconf.FSB().Key("default").Fields(
bconf.FB().Key("field_key").Type(bconf.String).Default("value").Create(),
).Create())
if len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-set: %v", errs)
}
errs = appConfig.AddFieldSet(bconf.FSB().Key("bad_field_condition_conditional").Fields(
bconf.FB().Key("some_key").Type(bconf.String).Default("value").Create(),
).LoadConditions(
bconf.NewFieldConditionBuilder().FieldSetKey("default").FieldKey("field_key").Condition(
func(fieldValue any) (bool, error) {
return true, fmt.Errorf("condition error")
},
).Create(),
).Create())
if len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-set: %v", errs)
}
errs = appConfig.LoadFieldSet("bad_field_condition_conditional")
if len(errs) < 1 {
t.Fatalf("expected errors loading conditional field-set")
}
if !strings.Contains(errs[0].Error(), "problem getting load condition outcome") {
t.Fatalf("unexpected error message: %s", errs[0])
}
}
func TestAppConfigLoadField(t *testing.T) {
appConfig := createBaseAppConfig()
standardFieldSetC := bconf.FSB().Key("standard_c").Fields(
bconf.FB().Key("field_a").Type(bconf.String).Default("value_a").Create(),
bconf.FB().Key("field_b").Type(bconf.String).Create(),
).Create()
standardFieldSetD := bconf.FSB().Key("standard_d").Fields(
bconf.FB().Key("field_a").Type(bconf.String).Default("value_a").Create(),
bconf.FB().Key("field_b").Type(bconf.String).Create(),
).Create()
standardFieldSetE := bconf.FSB().Key("standard_e").Fields(
bconf.FB().Key("field_a").Type(bconf.String).Default("value_a").Create(),
bconf.FB().Key("field_b").Type(bconf.String).Create(),
).Create()
appConfig.AddFieldSets(standardFieldSetC, standardFieldSetD, standardFieldSetE)
appConfig.Register(false)
errs := appConfig.LoadField("unk_field_set_key", "unk_field_key")
if len(errs) < 1 {
t.Fatalf("unexpected errors length when loading non-existent field-set: %d", len(errs))
}
if !strings.Contains(errs[0].Error(), "field-set with key 'unk_field_set_key' not found") {
t.Fatalf("unexpected error message: %s", errs[0])
}
errs = appConfig.AddFieldSet(bconf.FSB().Key("default").Fields(
bconf.FB().Key("field_key").Type(bconf.String).Default("value").Create(),
).Create())
if len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-set: %v", errs)
}
errs = appConfig.LoadField("default", "unk_field_key")
if len(errs) < 1 {
t.Fatalf("unexpected errors length when loading non-existent field-set field: %d", len(errs))
}
if !strings.Contains(errs[0].Error(), "field with key 'unk_field_key' not found") {
t.Fatalf("unexpected error message: %s", errs[0])
}
addedFieldC := bconf.FB().Key("field_c").Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey("field_b").Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create()
errs = appConfig.AddField("standard_c", addedFieldC)
if len(errs) > 0 {
t.Fatalf("unexpected error adding field set to standard_c: %s", errs)
}
errs = appConfig.LoadField("standard_c", "field_c")
if len(errs) < 1 {
t.Fatalf("expected error adding field set with missing load condition field value")
}
if !strings.Contains(errs[0].Error(), "no value set for field") {
t.Errorf("unexpected error message: %s", errs[0])
}
// A test case for loading a field with a truthy field load condition
os.Setenv("STANDARD_D_FIELD_D", "expected_value")
addedFieldD := bconf.FB().Key("field_d").Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey("field_a").Condition(func(val any) (bool, error) {
return true, nil
}).Create(),
).Create()
if errs := appConfig.AddField("standard_d", addedFieldD); len(errs) > 0 {
t.Fatalf("unexpected error adding field set to standard_d: %s", errs)
}
if errs := appConfig.LoadField("standard_d", "field_d"); len(errs) > 1 {
t.Fatalf("unexpected error loading field with truthy load condition: %s", errs)
}
foundValue, err := appConfig.GetString("standard_d", "field_d")
if err != nil {
t.Fatalf("unexpected error getting standard_d field_d value: %s", err)
}
if foundValue != "expected_value" {
t.Errorf("unexpected value loaded from field, expected 'expected_value', found: '%s'", foundValue)
}
// A test case for loading a field with a falsy field load condition
addedFieldE := bconf.FB().Key("field_e").Type(bconf.String).LoadConditions(
bconf.FCB().FieldKey("field_a").Condition(func(val any) (bool, error) {
return false, nil
}).Create(),
).Create()
if errs := appConfig.AddField("standard_e", addedFieldE); len(errs) > 0 {
t.Fatalf("unexpected error adding field set to standard_e: %s", errs)
}
if errs := appConfig.LoadField("standard_e", "field_e"); len(errs) < 1 {
t.Fatalf("expected error loading field with false load condition")
}
}
func TestAppConfigObservability(t *testing.T) {
appConfig := createBaseAppConfig()
idFieldKey := "id"
idFieldGeneratedDefaultValue := "generated-default-value"
idField := &bconf.Field{
Key: idFieldKey,
Type: bconfconst.String,
Description: "Application identifier for use in application log messages and tracing",
DefaultGenerator: func() (any, error) {
return idFieldGeneratedDefaultValue, nil
},
}
sessionSecretFieldKey := "session_secret"
sessionSecretEnvironmentValue := "environment-session-secret-value"
sessionSecretField := &bconf.Field{
Key: sessionSecretFieldKey,
Type: bconfconst.String,
Sensitive: true,
Validator: func(fieldValue any) error {
return nil
},
}
timeoutFieldKey := "timeout"
timeoutDefaultValue := 30 * time.Second
timeoutField := bconf.FB().Key(timeoutFieldKey).Type(bconf.Duration).Default(timeoutDefaultValue).Create()
os.Setenv("APP_SESSION_SECRET", sessionSecretEnvironmentValue)
appFieldSetKey := "app"
appFieldSet := &bconf.FieldSet{
Key: appFieldSetKey,
Fields: bconf.Fields{idField, sessionSecretField, timeoutField},
}
if errs := appConfig.AddFieldSet(appFieldSet); len(errs) > 0 {
t.Fatalf("unexpected errors adding app field set: %v", errs)
}
foundFieldSetKeys := appConfig.GetFieldSetKeys()
if len(foundFieldSetKeys) != 1 {
t.Fatalf("unexpected length of field set keys returned from app config: %d", len(foundFieldSetKeys))
}
if foundFieldSetKeys[0] != appFieldSetKey {
t.Fatalf("unexpected field-set key in keys returned from app config: '%s'", foundFieldSetKeys[0])
}
foundAppFieldSetKeys, err := appConfig.GetFieldSetFieldKeys(appFieldSetKey)
if err != nil {
t.Fatalf("unexpected issue getting app field-set field keys: %s", err)
}
if len(foundAppFieldSetKeys) < len(appFieldSet.Fields) {
t.Fatalf("length of field-set field keys does not match the length of fields: %d", len(foundAppFieldSetKeys))
}
fieldMap := appConfig.ConfigMap()
if _, found := fieldMap[appFieldSetKey]; !found {
t.Fatalf("expected to find app field-set key in config map")
}
if _, found := fieldMap[appFieldSetKey][idFieldKey]; !found {
t.Fatalf("expected to find app id key in config map")
}
if _, found := fieldMap[appFieldSetKey][sessionSecretFieldKey]; found {
t.Fatalf("unexpected session-secret key found in config map when no value is set")
}
if errs := appConfig.Register(false); errs != nil {
t.Fatalf("unexpected errors registering app config: %v", errs)
}
fieldMap = appConfig.ConfigMap()
fieldMapValue, found := fieldMap[appFieldSetKey][sessionSecretFieldKey]
if !found {
t.Fatalf("expected to find session-secret key in config map")
}
if fieldMapValue == sessionSecretEnvironmentValue {
t.Fatalf(
"unexpected sensitive value (%s) output in config map values: '%s'",
sessionSecretFieldKey,
fieldMapValue,
)
}
fieldMapValue, found = fieldMap[appFieldSetKey][fmt.Sprintf("%s_ms", timeoutFieldKey)]
if !found {
t.Fatalf("expected to find timeout_ms key in config map")
}
if fieldMapValue != int64(30000) {
t.Fatalf("unexpected timeout_ms value: %v", fieldMapValue)
}
}
func TestAppConfigSetField(t *testing.T) {
appConfig := createBaseAppConfig()
const stringFieldKey = "string"
const stringFieldValue = "string_one"
stringField := &bconf.Field{
Key: stringFieldKey,
Type: bconfconst.String,
Default: stringFieldValue,
Enumeration: []any{"string_one", "string_two", "string_three"},
}
const defaultFieldSetKey = "default"
defaultFieldSet := &bconf.FieldSet{
Key: defaultFieldSetKey,
Fields: bconf.Fields{
stringField,
},
}
if err := appConfig.SetField(defaultFieldSetKey, stringFieldKey, "some_val"); err == nil {
t.Fatalf("expected error setting field when field-set is not present")
} else if !strings.Contains(err.Error(), fmt.Sprintf("field-set with key '%s' not found", defaultFieldSetKey)) {
t.Fatalf("unexpected error message: %s", err.Error())
}
if errs := appConfig.AddFieldSet(defaultFieldSet); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-set: %v", errs)
}
if err := appConfig.SetField(defaultFieldSetKey, stringFieldKey, 3928482); err == nil {
t.Fatalf("expected error setting field to mismatched type")
} else if !strings.Contains(err.Error(), "invalid value field-type") {
t.Fatalf("unexpected error message when setting field to mismatched field-type: %s", err)
}
if err := appConfig.SetField(defaultFieldSetKey, stringFieldKey, "string_zero"); err == nil {
t.Fatalf("expected error setting field to value not in enumeration list")
} else if !strings.Contains(err.Error(), "value not found in enumeration list") {
t.Fatalf("unexpected error message when setting field to value not in enumeraiton list: %s", err)
}
if err := appConfig.SetField(defaultFieldSetKey, "some_key", "some_val"); err == nil {
t.Fatalf("expected error setting field when field is not present")
} else if !strings.Contains(err.Error(), "field with key") {
t.Fatalf("unexpected error message: %s", err.Error())
}
}
func TestAppConfigReloadingFields(t *testing.T) {
appConfig := createBaseAppConfig()
const stringFieldKey = "string"
const stringFieldValue = "string_one"
stringField := &bconf.Field{
Key: stringFieldKey,
Type: bconfconst.String,
Default: stringFieldValue,
}
const defaultFieldSetKey = "default"
defaultFieldSet := &bconf.FieldSet{
Key: defaultFieldSetKey,
Fields: bconf.Fields{
stringField,
},
}
if errs := appConfig.AddFieldSet(defaultFieldSet); len(errs) > 0 {
t.Fatalf("unexpected error(s) adding field-set: %v", errs)
}
if errs := appConfig.LoadFieldSet(defaultFieldSetKey); len(errs) != 1 {
t.Fatalf("expected error loading field-set before the app-config is registered")
} else if !strings.Contains(errs[0].Error(), "cannot be called before the app-config has been registered") {
t.Fatalf("unexpected error message when loading field-set before app-config is registered: %s", errs[0])
}
if errs := appConfig.LoadField(defaultFieldSetKey, stringFieldKey); len(errs) != 1 {
t.Fatalf("expected error loading field before the app-config is registered")
} else if !strings.Contains(errs[0].Error(), "cannot be called before the app-config has been registered") {
t.Fatalf("unexpected error message when loading field before app-config is registered: %s", errs[0])
}
if errs := appConfig.Register(false); len(errs) > 0 {
t.Fatalf("unexpected error(s) registering app-config: %v", errs)
}
os.Setenv(strings.ToUpper(fmt.Sprintf("%s_%s", defaultFieldSetKey, stringFieldKey)), "string_two")
if errs := appConfig.LoadFieldSet(defaultFieldSetKey); len(errs) > 0 {
t.Fatalf("unexpected errors loading field-set: %v", errs)
}
if val, err := appConfig.GetString(defaultFieldSetKey, stringFieldKey); err != nil {
t.Fatalf("unexpected error getting field value: %s", err)
} else if val != "string_two" {
t.Fatalf("unexpected field value: '%s'", val)
}
os.Setenv(strings.ToUpper(fmt.Sprintf("%s_%s", defaultFieldSetKey, stringFieldKey)), "string_three")
if errs := appConfig.LoadField(defaultFieldSetKey, stringFieldKey); len(errs) > 0 {
t.Fatalf("unexpected errors loading field: %v", errs)
}
if val, err := appConfig.GetString(defaultFieldSetKey, stringFieldKey); err != nil {
t.Fatalf("unexpected error getting field value: %s", err)
} else if val != "string_three" {
t.Fatalf("unexpected field value: '%s'", val)
}
}
func TestAppConfigFieldValidators(t *testing.T) {