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Cover integer version decoding boundaries

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This commit is contained in:
Eric Rakestraw
2026-09-12 00:28:35 +00:00
parent f5bbc2be5d
commit 6eb40c5492
2 changed files with 226 additions and 1 deletions
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217
load_test.go
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@@ -8,6 +8,7 @@ import (
"strings"
"sync/atomic"
"testing"
"time"
)
func TestLoadSingleSourceKindsAndDefaultsOnly(t *testing.T) {
@@ -216,6 +217,222 @@ func TestLoadDecodesIntegerVersionOnlyAtConfiguredStringPath(t *testing.T) {
}
}
func TestLoadVersionScalarAndPathBoundaries(t *testing.T) {
t.Parallel()
type config struct {
Version string `yaml:"version"`
}
for _, test := range []struct {
name string
value string
want string
}{
{name: "zero", value: "0", want: "0"},
{name: "negative", value: "-7", want: "-7"},
{name: "negative zero", value: "-0", want: "-0"},
{name: "beyond int64", value: "123456789012345678901234567890", want: "123456789012345678901234567890"},
{name: "empty string", value: `""`, want: ""},
} {
t.Run(test.name, func(t *testing.T) {
var checked Version
rule := &VersionRule{Path: Keys("version"), Check: func(version Version, _ *Validation) error {
checked = version
return nil
}}
result, err := Load(Bytes("version.yml", []byte("version: "+test.value+"\n")), Options[config]{Definition: Definition[config]{Version: rule}})
if err != nil {
t.Fatal(err)
}
if result.Config.Version != test.want || checked.Text != test.want || !checked.Present || checked.Null {
t.Fatalf("configuration = %#v, checked = %#v", result.Config, checked)
}
})
}
for _, test := range []struct {
name string
value string
}{
{name: "fraction", value: "4.0"},
{name: "exponent", value: "4e0"},
{name: "boolean", value: "true"},
{name: "mapping", value: "{}"},
{name: "sequence", value: "[]"},
} {
t.Run(test.name, func(t *testing.T) {
called := false
rule := &VersionRule{Path: Keys("version"), Check: func(Version, *Validation) error {
called = true
return nil
}}
result, err := Load(Bytes("version.yml", []byte("version: "+test.value+"\n")), Options[config]{Definition: Definition[config]{Version: rule}})
if result != nil || called {
t.Fatalf("result = %#v, checker called = %v", result, called)
}
requireDiagnostic(t, err, CodeVersionType, "/version")
})
}
type namedVersion string
type nested struct {
Versions map[string]**namedVersion `yaml:"versions"`
Sibling namedVersion `yaml:"sibling"`
}
parsed, err := ParsePath("/versions/0")
if err != nil {
t.Fatal(err)
}
rule := &VersionRule{Path: parsed, Check: func(version Version, _ *Validation) error {
if version.Text != "4" {
t.Errorf("version = %#v", version)
}
return nil
}}
result, err := Load(Bytes("nested.yml", []byte("versions:\n \"0\": 4\nsibling: quoted\n")), Options[nested]{Definition: Definition[nested]{Version: rule}})
if err != nil {
t.Fatal(err)
}
if result.Config.Versions["0"] == nil || *result.Config.Versions["0"] == nil || **result.Config.Versions["0"] != "4" || result.Config.Sibling != "quoted" {
t.Fatalf("nested configuration = %#v", result.Config)
}
type sequenceConfig struct {
Versions []namedVersion `yaml:"versions"`
}
sequenceResult, err := Load(Bytes("sequence.yml", []byte("versions: [6]\n")), Options[sequenceConfig]{Definition: Definition[sequenceConfig]{Version: &VersionRule{Path: parsed, Check: func(Version, *Validation) error { return nil }}}})
if err != nil || len(sequenceResult.Config.Versions) != 1 || sequenceResult.Config.Versions[0] != "6" {
t.Fatalf("sequence configuration = %#v, %v", sequenceResult, err)
}
type escaped struct {
Versions map[string]namedVersion `yaml:"versions"`
}
escapedPath, err := ParsePath("/versions/a~1b")
if err != nil {
t.Fatal(err)
}
escapedResult, err := Load(Bytes("escaped.yml", []byte("versions:\n a/b: 9\n")), Options[escaped]{Definition: Definition[escaped]{Version: &VersionRule{Path: escapedPath, Check: func(Version, *Validation) error { return nil }}}})
if err != nil || escapedResult.Config.Versions["a/b"] != "9" {
t.Fatalf("escaped configuration = %#v, %v", escapedResult, err)
}
siblingRule := &VersionRule{Path: Keys("versions", "target"), Check: func(Version, *Validation) error { return nil }}
if result, err := Load(Bytes("sibling.yml", []byte("versions:\n target: 4\n other: 5\n")), Options[escaped]{Definition: Definition[escaped]{Version: siblingRule}}); result != nil {
t.Fatalf("same-type sibling result = %#v, %v", result, err)
} else {
requireDiagnostic(t, err, CodeDecodeType, "/versions/other")
}
}
func TestLoadVersionDestinationTypesKeepOrdinaryDecoding(t *testing.T) {
t.Parallel()
check := func(Version, *Validation) error { return nil }
t.Run("integer destination", func(t *testing.T) {
type config struct {
Version int8 `yaml:"version"`
}
result, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
if err != nil || result.Config.Version != 4 {
t.Fatalf("result = %#v, %v", result, err)
}
result, err = Load(Bytes("version.yml", []byte("version: 999\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
if result != nil {
t.Fatalf("range result = %#v", result)
}
requireDiagnostic(t, err, CodeDecodeRange, "/version")
result, err = Load(Bytes("version.yml", []byte("version: \"4\"\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
if result != nil {
t.Fatalf("quoted integer result = %#v", result)
}
requireDiagnostic(t, err, CodeDecodeType, "/version")
})
t.Run("dynamic destination", func(t *testing.T) {
type config struct {
Version any `yaml:"version"`
}
result, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
if err != nil || result.Config.Version != int64(4) {
t.Fatalf("result = %#v, %v", result, err)
}
result, err = Load(Bytes("version.yml", []byte("version: 123456789012345678901234567890\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
if result != nil {
t.Fatalf("range result = %#v", result)
}
requireDiagnostic(t, err, CodeDecodeRange, "/version")
})
for _, test := range []struct {
name string
load func() error
}{
{name: "text codec", load: func() error {
type config struct {
Version validatedText `yaml:"version"`
}
_, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
return err
}},
{name: "duration", load: func() error {
type config struct {
Version time.Duration `yaml:"version"`
}
_, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
return err
}},
{name: "secret", load: func() error {
type config struct {
Version Secret `yaml:"version"`
}
_, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{Version: &VersionRule{Path: Keys("version"), Check: check}}})
return err
}},
} {
t.Run(test.name, func(t *testing.T) {
requireDiagnostic(t, test.load(), CodeDecodeType, "/version")
})
}
}
func TestLoadVersionPolicyStopsLaterHooks(t *testing.T) {
t.Parallel()
type config struct {
Version string `yaml:"version"`
}
var defaultsCalled, resolutionCalled, validationCalled bool
rule := &VersionRule{Path: Keys("version"), Check: func(version Version, validation *Validation) error {
if version.Text != "4" {
t.Errorf("version = %#v", version)
}
validation.Error(Keys("version"), "unsupported configuration version")
return nil
}}
result, err := Load(Bytes("version.yml", []byte("version: 4\n")), Options[config]{Definition: Definition[config]{
Defaults: func() config { defaultsCalled = true; return config{} },
Version: rule,
Resolve: func(*config, *Resolution) error { resolutionCalled = true; return nil },
Validate: func(*config, *Validation) { validationCalled = true },
}})
if result != nil || defaultsCalled || resolutionCalled || validationCalled {
t.Fatalf("result = %#v, hooks = %v/%v/%v", result, defaultsCalled, resolutionCalled, validationCalled)
}
requireDiagnostic(t, err, CodeVersionError, "/version")
}
func requireDiagnostic(t *testing.T, err error, code Code, path string) {
t.Helper()
var loadError *LoadError
if !errors.As(err, &loadError) {
t.Fatalf("error = %T %v", err, err)
}
diagnostics := loadError.Diagnostics()
if len(diagnostics) != 1 || diagnostics[0].Code != code || diagnostics[0].Path.String() != path || diagnostics[0].Primary == nil {
t.Fatalf("diagnostics = %#v", diagnostics)
}
}
func TestLoadVersionReportSuppressesReturnedErrorTextAndDefaults(t *testing.T) {
t.Parallel()