mirror of
https://github.com/anchore/syft.git
synced 2026-11-02 23:46:35 +01:00
108 lines
3.7 KiB
Go
108 lines
3.7 KiB
Go
package cyclonedxutil
|
|
|
|
import (
|
|
"go/constant"
|
|
"go/types"
|
|
"regexp"
|
|
"slices"
|
|
"testing"
|
|
|
|
"github.com/CycloneDX/cyclonedx-go"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
"golang.org/x/tools/go/packages"
|
|
)
|
|
|
|
// Test_allSpecVersionsMapped loads the cyclonedx-go package's type information and enumerates every
|
|
// SpecVersion* constant it declares, asserting each one is present in our version maps. Upgrading
|
|
// cyclonedx-go to a release that adds a new spec version will fail this test until versions.go is updated.
|
|
func Test_allSpecVersionsMapped(t *testing.T) {
|
|
const pkgPath = "github.com/CycloneDX/cyclonedx-go"
|
|
|
|
pkgs, err := packages.Load(&packages.Config{Mode: packages.NeedName | packages.NeedTypes}, pkgPath)
|
|
require.NoError(t, err)
|
|
require.Len(t, pkgs, 1)
|
|
|
|
pkg := pkgs[0]
|
|
require.Empty(t, pkg.Errors, "errors loading %s", pkgPath)
|
|
require.NotNil(t, pkg.Types, "no type info loaded for %s", pkgPath)
|
|
|
|
// allVersions is the superset (json/common versions merged in), so it covers every spec version we map.
|
|
mapped := make(map[cyclonedx.SpecVersion]struct{})
|
|
for syftVersion, sv := range allVersions {
|
|
// make sure the key matches the version it's mapped to
|
|
require.Contains(t, sv.String(), syftVersion, "version %q is not correctly mapped to cyclonedx SpecVersion %q", syftVersion, sv.String())
|
|
mapped[sv] = struct{}{}
|
|
}
|
|
|
|
specVersionConst := regexp.MustCompile(`^SpecVersion\d`)
|
|
scope := pkg.Types.Scope()
|
|
found := 0
|
|
for _, name := range scope.Names() {
|
|
if !specVersionConst.MatchString(name) {
|
|
continue
|
|
}
|
|
c, ok := scope.Lookup(name).(*types.Const)
|
|
if !ok {
|
|
continue
|
|
}
|
|
found++
|
|
val, ok := constant.Int64Val(c.Val())
|
|
require.Truef(t, ok, "could not read int value of cyclonedx.%s", name)
|
|
_, ok = mapped[cyclonedx.SpecVersion(val)]
|
|
|
|
assert.Truef(t, ok, "cyclonedx.%s is not mapped in versions.go; add it when upgrading cyclonedx-go", name)
|
|
}
|
|
require.NotZero(t, found, "no SpecVersion* constants found in %s", pkgPath)
|
|
}
|
|
|
|
func Test_versionSort(t *testing.T) {
|
|
// versionSort returns <0 when a<b, 0 when a==b, >0 when a>b; assert on sign rather than exact value.
|
|
sign := func(n int) int {
|
|
switch {
|
|
case n < 0:
|
|
return -1
|
|
case n > 0:
|
|
return 1
|
|
default:
|
|
return 0
|
|
}
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
a string
|
|
b string
|
|
want int
|
|
}{
|
|
{name: "equal single part", a: "1", b: "1", want: 0},
|
|
{name: "equal two parts", a: "1.4", b: "1.4", want: 0},
|
|
{name: "minor less than", a: "1.3", b: "1.4", want: -1},
|
|
{name: "minor greater than", a: "1.6", b: "1.5", want: 1},
|
|
{name: "major less than", a: "1.7", b: "2.0", want: -1},
|
|
{name: "major greater than", a: "2.0", b: "1.7", want: 1},
|
|
{name: "fewer parts sorts first", a: "1", b: "1.0", want: -1},
|
|
{name: "more parts sorts last", a: "1.0", b: "1", want: 1},
|
|
{name: "numeric not lexical (10 > 9)", a: "1.10", b: "1.9", want: 1},
|
|
{name: "multi-digit major", a: "10.0", b: "9.0", want: 1},
|
|
{name: "three parts equal", a: "1.4.0", b: "1.4.0", want: 0},
|
|
{name: "three parts patch differs", a: "1.4.1", b: "1.4.0", want: 1},
|
|
{name: "non-numeric equal falls through", a: "1.x", b: "1.x", want: 0},
|
|
{name: "non-numeric string compare", a: "1.a", b: "1.b", want: -1},
|
|
{name: "non-numeric side string compare", a: "1.2", b: "1.x", want: -1},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
assert.Equal(t, tt.want, sign(versionSort(tt.a, tt.b)))
|
|
// comparator must be antisymmetric: swapping operands negates the sign.
|
|
assert.Equal(t, -tt.want, sign(versionSort(tt.b, tt.a)))
|
|
})
|
|
}
|
|
}
|
|
|
|
func Test_versionSort_sortsSlice(t *testing.T) {
|
|
versions := []string{"1.10", "1.2", "1", "2.0", "1.9", "1.0"}
|
|
slices.SortFunc(versions, versionSort)
|
|
assert.Equal(t, []string{"1", "1.0", "1.2", "1.9", "1.10", "2.0"}, versions)
|
|
}
|