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load_test.go
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load_test.go
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package fangs
import (
"os"
"path"
"regexp"
"strings"
"testing"
"github.com/adrg/xdg"
"github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type sub struct {
Sv string `mapstructure:"sv"`
Unbound string `mapstructure:"unbound"`
}
type root struct {
V string `mapstructure:"v"`
Sub *sub `mapstructure:"sub"`
}
func Test_LoadDefaults(t *testing.T) {
cmd, cfg, r, s := setup(t)
err := Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "default-sv", s.Sv)
require.Equal(t, "default-v", r.V)
}
func Test_LoadFromConfigFile(t *testing.T) {
cmd, cfg, r, s := setup(t)
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "direct-config-sub-v", s.Sv)
require.Equal(t, "direct-config-v", r.V)
}
func Test_explicitConfigFileNotFoundErrors(t *testing.T) {
cmd, cfg, r, _ := setup(t)
cfg.Profiles = []string{"override"}
cfg.Files = []string{"test-fixtures/basic-profiles/3.yaml", "test-fixtures/multilevel/1.yaml"}
err := Load(cfg, cmd, r)
require.ErrorContains(t, err, "not exist")
cfg.Files = []string{"test-fixtures/multilevel/1.yaml", "test-fixtures/basic-profiles/3.yaml"}
err = Load(cfg, cmd, r)
require.ErrorContains(t, err, "not exist")
}
func Test_BasicMultilevelWithProfile(t *testing.T) {
cmd, cfg, r, _ := setup(t)
// fixture 1 should take precedence, and arrays should be appended with fixture 1 first
cfg.Files = []string{"test-fixtures/basic-profiles/1.yaml", "test-fixtures/basic-profiles/2.yaml"}
err := Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "level-2-v", r.V)
require.Equal(t, "level-1-sv", r.Sub.Sv)
// when profile specified, profile overrides should be applied, with those from fixture 1 first and fixture 2 appended
cfg.Profiles = []string{"my-profile-1"}
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "level-1-override", r.V)
require.Equal(t, "level-2-sub-sv-override", r.Sub.Sv)
}
func Test_InvalidProfileConfig(t *testing.T) {
cmd, cfg, r, _ := setup(t)
cfg.ProfileKey = ""
// fixture 1 should take precedence, and arrays should be appended
cfg.Files = []string{"test-fixtures/basic-profiles/1.yaml", "test-fixtures/basic-profiles/2.yaml"}
cfg.Profiles = []string{"a-profile"}
err := Load(cfg, cmd, r)
require.ErrorContains(t, err, "invalid configuration")
}
func Test_InvalidProfileRequested(t *testing.T) {
cmd, cfg, r, _ := setup(t)
// fixture 1 should take precedence, and arrays should be appended
cfg.Files = []string{"test-fixtures/basic-profiles/1.yaml", "test-fixtures/basic-profiles/2.yaml"}
cfg.Profiles = []string{"a-profile"}
err := Load(cfg, cmd, r)
require.ErrorContains(t, err, "profile not found")
cfg.Profiles = []string{"my-profile-1", "a-profile"}
err = Load(cfg, cmd, r)
require.ErrorContains(t, err, "profile not found")
}
func Test_LoadEmbeddedSquash(t *testing.T) {
type Top struct {
Value string
}
type Sub struct {
Value string
}
type t1 struct {
Top `mapstructure:",squash"`
Sub `mapstructure:"sub2"`
}
cfg := NewConfig("app")
cmd := &cobra.Command{}
v := &t1{
Top: Top{},
Sub: Sub{},
}
t.Setenv("APP_VALUE", "top-v")
t.Setenv("APP_SUB2_VALUE", "sub2-v")
err := Load(cfg, cmd, v)
require.NoError(t, err)
require.Equal(t, "top-v", v.Top.Value)
require.Equal(t, "sub2-v", v.Sub.Value)
}
func Test_LoadFromEnv(t *testing.T) {
t.Setenv("MY_APP_V", "env-var-v")
t.Setenv("MY_APP_SUB_SV", "env-var-sv")
cmd, cfg, r, s := setup(t)
err := Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "env-var-sv", s.Sv)
require.Equal(t, "env-var-v", r.V)
}
func Test_LoadFromEnvOnly(t *testing.T) {
t.Setenv("APP_V", "env-var-v")
t.Setenv("APP_SUB_SV", "env-var-sv")
cmd := &cobra.Command{}
s := &sub{
Sv: "default-sv",
}
r := &root{
V: "default-v",
Sub: s,
}
cfg := NewConfig("app")
err := Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "env-var-sv", s.Sv)
require.Equal(t, "env-var-v", r.V)
}
func Test_LoadFromEnvOverridingConfigFile(t *testing.T) {
t.Setenv("MY_APP_V", "env-var-v")
t.Setenv("MY_APP_SUB_SV", "env-var-sv")
cmd, cfg, r, s := setup(t)
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "env-var-sv", s.Sv)
require.Equal(t, "env-var-v", r.V)
}
func Test_LoadSubStruct(t *testing.T) {
t.Setenv("MY_APP_SUB_SV", "env-var-sv")
cmd, cfg, _, s := setup(t)
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
err = LoadAt(cfg, cmd, "sub", s)
require.NoError(t, err)
require.Equal(t, "env-var-sv", s.Sv)
}
func Test_LoadSubStructEnv(t *testing.T) {
cmd, cfg, _, s := setup(t)
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
err = LoadAt(cfg, cmd, "sub", s)
require.NoError(t, err)
require.Equal(t, "direct-config-sub-v", s.Sv)
}
func Test_LoadFromFlags(t *testing.T) {
cmd, cfg, r, s := setup(t)
err := cmd.PersistentFlags().Set("v", "flag-value-v")
require.NoError(t, err)
err = cmd.Flags().Set("sv", "flag-value-sv")
require.NoError(t, err)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "flag-value-sv", s.Sv)
require.Equal(t, "flag-value-v", r.V)
}
func Test_LoadFromFlagsOverridingAll(t *testing.T) {
t.Setenv("MY_APP_V", "env-var-v")
t.Setenv("MY_APP_SUB_SV", "env-var-sv")
cmd, cfg, r, s := setup(t)
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
err = cmd.PersistentFlags().Set("v", "flag-value-v")
require.NoError(t, err)
err = cmd.Flags().Set("sv", "flag-value-sv")
require.NoError(t, err)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "flag-value-sv", s.Sv)
require.Equal(t, "flag-value-v", r.V)
}
func setup(_ *testing.T) (*cobra.Command, Config, *root, *sub) {
cfg := NewConfig("my-app")
s := &sub{
Sv: "default-sv",
Unbound: "default-unbound",
}
r := &root{
V: "default-v",
Sub: s,
}
cmd := &cobra.Command{}
flags := cmd.PersistentFlags()
flags.StringVarP(&r.V, "v", "", r.V, "v usage")
flags = cmd.Flags()
flags.StringVarP(&s.Sv, "sv", "", s.Sv, "sv usage")
return cmd, cfg, r, s
}
func p[T any](t T) *T {
return &t
}
func Test_flagBoolPtrValues(t *testing.T) {
type s struct {
Bool *bool `mapstructure:"bool"`
}
a := &s{}
cmd := &cobra.Command{}
flags := cmd.Flags()
BoolPtrVarP(flags, &a.Bool, "bool", "", "")
refs := commandFlagRefs(cmd)
require.NotEmpty(t, refs)
err := flags.Set("bool", "true")
require.NoError(t, err)
require.NotNil(t, a.Bool)
require.Equal(t, true, *a.Bool)
t.Setenv("APP_BOOL", "false")
cfg := NewConfig("app")
err = Load(cfg, cmd, a)
require.NoError(t, err)
require.NotNil(t, a.Bool)
require.Equal(t, true, *a.Bool)
}
func Test_zeroFields(t *testing.T) {
type s struct {
List []string `mapstructure:"list"`
}
a := &s{
List: []string{
"default1",
"default2",
"default3",
},
}
cmd := &cobra.Command{}
cfg := NewConfig("app")
err := Load(cfg, cmd, a)
require.NoError(t, err)
require.Equal(t, []string{"default1", "default2", "default3"}, a.List)
t.Setenv("APP_LIST", "set1,set2")
cfg = NewConfig("app")
err = Load(cfg, cmd, a)
require.NoError(t, err)
require.Equal(t, []string{"set1", "set2"}, a.List)
}
func Test_AllFieldTypes(t *testing.T) {
appName := "app"
envName := func(name string) string {
name = appName + "." + name
name = regexp.MustCompile("[^a-zA-Z0-9]").ReplaceAllString(name, "_")
return strings.ToUpper(name)
}
type all struct {
Bool bool `mapstructure:"bool"`
BoolPtr *bool `mapstructure:"bool-ptr"`
Int int `mapstructure:"int"`
IntPtr *int `mapstructure:"int-ptr"`
String string `mapstructure:"string"`
StringPtr *string `mapstructure:"string-ptr"`
StringArray []string `mapstructure:"string-array"`
Float64 float64 `mapstructure:"float64"`
Float64Ptr *float64 `mapstructure:"float64-ptr"`
}
tests := []struct {
name string
env map[string]string
flags map[string]string
expected *all
}{
{
name: "all values from env",
// NOTE this test needs to include all the env vars -- the names are used to reset the env vars
env: map[string]string{
"bool": "true",
"bool-ptr": "false",
"int": "8",
"int-ptr": "9",
"string": "stringValueEnv",
"string-ptr": "stringValuePtrEnv",
"string-array": "stringArrayValueEnv",
"float64": "3.14",
"float64-ptr": "2.718",
},
expected: &all{
Bool: true,
BoolPtr: p(false),
Int: 8,
IntPtr: p(9),
String: "stringValueEnv",
StringPtr: p("stringValuePtrEnv"),
StringArray: []string{"stringArrayValueEnv"},
Float64: 3.14,
Float64Ptr: p(2.718),
},
},
{
name: "all values from config",
expected: &all{
Bool: false,
BoolPtr: p(true),
Int: 2,
IntPtr: p(3),
String: "stringValueConfig",
StringPtr: p("stringValuePtrConfig"),
StringArray: []string{"stringArrayValueConfig"},
Float64: 1.618,
Float64Ptr: p(0.618),
},
},
{
name: "all values from flags",
env: map[string]string{
"bool": "true",
"bool-ptr": "false",
"int": "8",
"int-ptr": "9",
"string": "stringValueEnv",
"string-ptr": "stringValuePtrEnv",
"string-array": "stringArrayValueEnv",
"float64": "4.44",
"float64-ptr": "5.55",
},
flags: map[string]string{
"bool": "false",
"bool-ptr": "true",
"int": "5",
"string": "stringValueFlag",
"string-array": "stringArrayValueFlag",
"float64": "3.14",
"float64-ptr": "2.718",
},
expected: &all{
Bool: false,
BoolPtr: p(true),
Int: 5,
IntPtr: p(9),
String: "stringValueFlag",
StringPtr: p("stringValuePtrEnv"),
StringArray: []string{"stringArrayValueFlag"},
Float64: 3.14,
Float64Ptr: p(2.718),
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if len(test.env) > 0 {
// reset all the env vars -- use the :
for k := range tests[0].env {
t.Setenv(envName(k), "")
_ = os.Unsetenv(envName(k))
}
// set for the test
for k, v := range test.env {
t.Setenv(envName(k), v)
}
}
cfg := NewConfig(appName)
cfg.Files = []string{"test-fixtures/all-values/app.yaml"}
cmd := &cobra.Command{}
a := &all{}
flags := cmd.Flags()
flags.BoolVarP(&a.Bool, "bool", "", a.Bool, "bool usage")
BoolPtrVarP(flags, &a.BoolPtr, "bool-ptr", "", "bool ptr usage")
flags.IntVarP(&a.Int, "int", "", a.Int, "int usage")
IntPtrVarP(flags, &a.IntPtr, "int-ptr", "", "int ptr usage")
flags.StringVarP(&a.String, "string", "", a.String, "string usage")
StringPtrVarP(flags, &a.StringPtr, "string-ptr", "", "string ptr usage")
flags.StringArrayVarP(&a.StringArray, "string-array", "", a.StringArray, "string array usage")
flags.Float64VarP(&a.Float64, "float64", "", a.Float64, "float64 usage")
Float64PtrVarP(flags, &a.Float64Ptr, "float64-ptr", "", "float64 ptr usage")
for k, v := range test.flags {
err := flags.Set(k, v)
require.NoError(t, err)
}
err := Load(cfg, cmd, a)
require.NoError(t, err)
assert.Equal(t, test.expected, a)
})
}
}
func Test_wdConfigYaml(t *testing.T) {
wd, err := os.Getwd()
require.NoError(t, err)
err = os.Chdir(path.Join(wd, "test-fixtures", "wd-config"))
require.NoError(t, err)
t.Cleanup(func() {
_ = os.Chdir(wd)
})
t.Setenv("HOME", path.Join(wd, "test-fixtures", "fake-home-dir"))
cmd, cfg, r, _ := setup(t)
cfg.Finders = append(cfg.Finders, FindConfigYamlInCwd)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "wd-config-v", r.V)
}
func Test_wdSubdirConfigYaml(t *testing.T) {
wd, err := os.Getwd()
require.NoError(t, err)
err = os.Chdir(path.Join(wd, "test-fixtures", "wd-subdir"))
require.NoError(t, err)
t.Cleanup(func() {
_ = os.Chdir(wd)
})
t.Setenv("HOME", path.Join(wd, "test-fixtures", "fake-home-dir"))
cmd, cfg, r, _ := setup(t)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "wd-subdir-config-v", r.V)
}
func Test_homeDir(t *testing.T) {
disableCache := homedir.DisableCache
homedir.DisableCache = true
t.Cleanup(func() {
homedir.DisableCache = disableCache
})
wd, err := os.Getwd()
require.NoError(t, err)
t.Setenv("HOME", path.Join(wd, "test-fixtures", "home-dir"))
cmd, cfg, r, _ := setup(t)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "home-config-v", r.V)
}
func Test_xdgDirs(t *testing.T) {
t.Cleanup(func() {
xdg.Reload()
})
disableCache := homedir.DisableCache
homedir.DisableCache = true
t.Cleanup(func() {
homedir.DisableCache = disableCache
})
wd, err := os.Getwd()
require.NoError(t, err)
t.Setenv("HOME", path.Join(wd, "test-fixtures", "fake-home-dir"))
t.Setenv("XDG_CONFIG_HOME", "")
t.Setenv("XDG_CONFIG_DIRS", path.Join(wd, "test-fixtures", "xdg-dir"))
xdg.Reload()
cmd, cfg, r, _ := setup(t)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "xdg-config-v", r.V)
}
func Test_xdgHomeDir(t *testing.T) {
t.Cleanup(func() {
xdg.Reload()
})
disableCache := homedir.DisableCache
homedir.DisableCache = true
t.Cleanup(func() {
homedir.DisableCache = disableCache
})
wd, err := os.Getwd()
require.NoError(t, err)
t.Setenv("HOME", path.Join(wd, "test-fixtures", "fake-home-dir"))
t.Setenv("XDG_CONFIG_HOME", path.Join(wd, "test-fixtures", "xdg-home"))
t.Setenv("XDG_CONFIG_DIRS", path.Join(wd, "test-fixtures", "xdg-dir"))
xdg.Reload()
cmd, cfg, r, _ := setup(t)
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "xdg-home-config-v", r.V)
}
func Test_NilPointerFields(t *testing.T) {
cfg := NewConfig("my-app")
r := &rootPostLoad{}
cmd := &cobra.Command{}
err := Load(cfg, cmd, r)
require.NoError(t, err)
require.Nil(t, r.Bool)
t.Setenv("MY_APP_BOOL", "true")
t.Setenv("MY_APP_PTR_SV", "env-sv")
r = &rootPostLoad{}
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.NotNil(t, r.Bool)
require.True(t, *r.Bool)
require.NotNil(t, r.Ptr)
require.Equal(t, "env-sv", r.Ptr.Sv)
}
func Test_PostLoad(t *testing.T) {
cfg := NewConfig("my-app")
wd, err := os.Getwd()
require.NoError(t, err)
cfg.Files = []string{path.Join(wd, "test-fixtures", "config.yaml")}
r := &rootPostLoad{
V: "default-v",
Ptr: &subPostLoad{
Sv: "ptr-v",
},
}
cmd := &cobra.Command{}
err = Load(cfg, cmd, r)
require.NoError(t, err)
require.Equal(t, "direct-config-v", r.V2)
require.Equal(t, "direct-config-sub-v", r.Sub.Sv2)
require.Equal(t, "direct-config-sub-sub-v", r.Sub.Sub2.Ssv2)
require.Equal(t, "direct-config-sub-sub-sub-v", r.Sub.Sub2.Sub3.Sssv2)
require.Equal(t, "ptr-v", r.Ptr.Sv2)
}
type Public struct {
Value bool `json:"value" yaml:"value" mapstructure:"value"`
}
type private struct {
Value bool `json:"value" yaml:"value" mapstructure:"value"`
}
func Test_EmbeddedPublicStruct(t *testing.T) {
val := &struct {
Public `yaml:",inline" mapstructure:",squash"`
PublicField struct {
Public `yaml:",inline" mapstructure:",squash"`
} `yaml:"field" mapstructure:"field"`
}{}
cfg := NewConfig("app")
t.Setenv("APP_VALUE", "true")
t.Setenv("APP_FIELD_VALUE", "true")
cmd := &cobra.Command{}
err := Load(cfg, cmd, val)
require.NoError(t, err)
require.NotNil(t, val.Public)
require.True(t, val.Public.Value)
require.NotNil(t, val.PublicField.Public)
require.True(t, val.PublicField.Public.Value)
}
func Test_EmbeddedPublicStructPointer(t *testing.T) {
val := &struct {
*Public `yaml:",inline" mapstructure:",squash"`
PublicField struct {
*Public `yaml:",inline" mapstructure:",squash"`
} `yaml:"field" mapstructure:"field"`
}{}
cfg := NewConfig("app")
t.Setenv("APP_VALUE", "true")
t.Setenv("APP_FIELD_VALUE", "true")
cmd := &cobra.Command{}
err := Load(cfg, cmd, val)
require.NoError(t, err)
require.NotNil(t, val.Public)
require.True(t, val.Public.Value)
require.NotNil(t, val.PublicField.Public)
require.True(t, val.PublicField.Value)
}
func Test_EmbeddedPrivateStruct(t *testing.T) {
val := &struct {
private `yaml:",inline" mapstructure:",squash"`
PublicField struct {
private `yaml:",inline" mapstructure:",squash"`
} `yaml:"field" mapstructure:"field"`
}{}
cfg := NewConfig("app")
t.Setenv("APP_VALUE", "true")
t.Setenv("APP_FIELD_VALUE", "true")
cmd := &cobra.Command{}
err := Load(cfg, cmd, val)
require.NoError(t, err)
require.NotNil(t, val.private)
require.True(t, val.private.Value)
require.NotNil(t, val.PublicField.private)
require.True(t, val.PublicField.private.Value)
}
func Test_EmbeddedPrivateStructPointer(t *testing.T) {
// Note that, unlike Test_EmbeddedPublicStructPointer above,
// in this test, *private is not exported and cannot be set or addressed.
// This is a language limitation. See https://go-review.googlesource.com/c/go/+/53643
// and https://github.com/golang/go/issues/21357
val := &struct {
*private `yaml:",inline" mapstructure:",squash"`
PublicField struct {
*private `yaml:",inline" mapstructure:",squash"`
} `yaml:"field" mapstructure:"field"`
}{}
cfg := NewConfig("app")
t.Setenv("APP_VALUE", "true")
t.Setenv("APP_FIELD_VALUE", "true")
cmd := &cobra.Command{}
err := Load(cfg, cmd, val)
// https://github.com/mitchellh/mapstructure/blob/bf980b35cac4dfd34e05254ee5aba086504c3f96/mapstructure.go#L1338
assert.ErrorContains(t, err, "unsupported type for squash")
}
func Test_configVarSetToAllFiles(t *testing.T) {
cmd, cfg, _, _ := setup(t)
cfg.Files = []string{"test-fixtures/multilevel/3.yaml", "test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"}
type hasConfigString struct {
Config string `mapstructure:"config"`
}
cstr := &hasConfigString{}
err := Load(cfg, cmd, cstr)
require.NoError(t, err)
require.Equal(t, strings.Join(cfg.Files, ","), cstr.Config)
type hasConfigSlice struct {
Config []string `mapstructure:"config"`
}
csls := &hasConfigSlice{}
err = Load(cfg, cmd, csls)
require.NoError(t, err)
require.Len(t, csls.Config, 3)
require.Equal(t, cfg.Files, csls.Config)
}
func Test_MultilevelAll(t *testing.T) {
type sub struct {
Name string `mapstructure:"sub-name"`
SubStringArray []string `mapstructure:"sub-string-array"`
}
type holder struct {
Name string `mapstructure:"name"`
Sub []sub `mapstructure:"sub"`
StringArray []string `mapstructure:"string-array"`
SubHolder *holder `mapstructure:"holder"`
}
tests := []struct {
name string
files []string
profiles []string
env map[string]string
expected holder
}{
{
name: "no profiles",
files: []string{"test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{},
expected: holder{
Name: "top-name-1",
StringArray: []string{"v1.1-top", "v1.2-top", "v2.1-top", "v2.2-top"},
Sub: []sub{
{Name: "n1.1", SubStringArray: []string{"v1.1", "v1.2"}},
{Name: "n1.2", SubStringArray: []string{"v1.3", "v1.4"}},
{Name: "n2.1", SubStringArray: []string{"v2.1", "v2.2"}},
},
SubHolder: &holder{
Name: "holder-name-1",
},
},
},
{
name: "profile 1",
files: []string{"test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{"prof-1"},
expected: holder{
Name: "top-name-1",
StringArray: []string{"v1.1-top", "v1.2-top", "v2.1-top", "v2.2-top"},
Sub: []sub{
{SubStringArray: []string{"v1.1-prof-1-override", "v1.2-prof-1-override"}},
{SubStringArray: []string{"v2.1-prof-1-override", "v2.2-prof-1-override"}},
},
SubHolder: &holder{
Name: "holder-name-1",
},
},
},
{
name: "profile 2",
files: []string{"test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{"prof-2"},
expected: holder{
Name: "top-name-2-prof-2-override",
StringArray: []string{"v1.1-top", "v1.2-top", "v2.1-top", "v2.2-top"},
Sub: []sub{
{SubStringArray: []string{"v2.1-prof-2-override", "v2.2-prof-2-override"}},
},
SubHolder: &holder{
Name: "holder-name-1",
},
},
},
{
name: "profile 3, 1 priority",
files: []string{"test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml", "test-fixtures/multilevel/3.yaml"},
profiles: []string{"prof-3"},
expected: holder{
Name: "top-name-1",
StringArray: []string{"v3.1-prof-3-override", "v3.2-prof-3-override"},
Sub: []sub{
{SubStringArray: []string{"v3.1-prof-3-sub-override", "v3.2-prof-3-sub-override"}},
},
SubHolder: &holder{
Name: "holder-name-1",
},
},
},
{
name: "profile 3, 3 priority",
files: []string{"test-fixtures/multilevel/3.yaml", "test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{"prof-3"},
expected: holder{
Name: "top-name-3",
StringArray: []string{"v3.1-prof-3-override", "v3.2-prof-3-override"},
Sub: []sub{
{SubStringArray: []string{"v3.1-prof-3-sub-override", "v3.2-prof-3-sub-override"}},
},
SubHolder: &holder{
Name: "holder-name-1",
},
},
},
{
name: "profile 1, 3 priority",
files: []string{"test-fixtures/multilevel/3.yaml", "test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{"prof-1"},
expected: holder{
Name: "top-name-3",
StringArray: []string{"v3.1-prof-1-override", "v3.2-prof-1-override"},
Sub: []sub{
{SubStringArray: []string{"v3.1-prof-1-sub-override", "v3.2-prof-1-sub-override"}},
{SubStringArray: []string{"v1.1-prof-1-override", "v1.2-prof-1-override"}},
{SubStringArray: []string{"v2.1-prof-1-override", "v2.2-prof-1-override"}},
},
SubHolder: &holder{
Name: "holder-name-3-prof-1-overide",
},
},
},
{
name: "profile 1, 3 priority, with env",
files: []string{"test-fixtures/multilevel/3.yaml", "test-fixtures/multilevel/1.yaml", "test-fixtures/multilevel/2.yaml"},
profiles: []string{"prof-1"},
env: map[string]string{
"MY_APP_NAME": "name-from-env",
"MY_APP_PROFILES_PROF_1_NAME": "prof-1-name-from-env", // should NOT pick up an env var from a profile-nested key
},
expected: holder{
Name: "name-from-env",
StringArray: []string{"v3.1-prof-1-override", "v3.2-prof-1-override"},
Sub: []sub{
{SubStringArray: []string{"v3.1-prof-1-sub-override", "v3.2-prof-1-sub-override"}},
{SubStringArray: []string{"v1.1-prof-1-override", "v1.2-prof-1-override"}},
{SubStringArray: []string{"v2.1-prof-1-override", "v2.2-prof-1-override"}},
},
SubHolder: &holder{
Name: "holder-name-3-prof-1-overide",
},
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
cmd, cfg, _, _ := setup(t)
got := &holder{}
for k, v := range test.env {
t.Setenv(k, v)
}
cfg.Files = test.files
cfg.Profiles = test.profiles
err := Load(cfg, cmd, got)
require.NoError(t, err)
require.Equal(t, &test.expected, got)
})
}
}
type rootPostLoad struct {
V string `mapstructure:"v"`
V2 string
Bool *bool `mapstructure:"bool"`
Ptr *subPostLoad `mapstructure:"ptr"`
Sub subPostLoad `mapstructure:"sub"`
}
func (r *rootPostLoad) PostLoad() error {
r.V2 = r.V
return nil
}
var _ PostLoader = (*rootPostLoad)(nil)
type subPostLoad struct {
Sv string `mapstructure:"sv"`
Sv2 string
Sub2 subSubPostLoad `mapstructure:"sub2"`
}
func (s *subPostLoad) PostLoad() error {
s.Sv2 = s.Sv
return nil
}
var _ PostLoader = (*subPostLoad)(nil)
type subSubPostLoad struct {
Ssv string `mapstructure:"ssv"`
Ssv2 string
Sub3 subSubSubPostLoad `mapstructure:"sub3"`
}
func (s *subSubPostLoad) PostLoad() error {
s.Ssv2 = s.Ssv
return nil
}
var _ PostLoader = (*subSubPostLoad)(nil)
type subSubSubPostLoad struct {
Sssv string `mapstructure:"sssv"`
Sssv2 string
}
func (s *subSubSubPostLoad) PostLoad() error {
s.Sssv2 = s.Sssv
return nil
}
var _ PostLoader = (*subSubSubPostLoad)(nil)
func Test_postLoadSlices(t *testing.T) {
type typ struct {
Items []item
ItemPtrs []*item
PtrItems *[]item