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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package postgres
import (
"context"
"errors"
"sort"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"golang.org/x/pkgsite/internal"
"golang.org/x/pkgsite/internal/licenses"
"golang.org/x/pkgsite/internal/stdlib"
"golang.org/x/pkgsite/internal/testing/sample"
)
func TestGetLicenses(t *testing.T) {
t.Parallel()
testModule := sample.Module(sample.ModulePath, "v1.2.3", "A/B")
stdlibModule := sample.Module(stdlib.ModulePath, "v1.13.0", "cmd/go")
mit := &licenses.Metadata{Types: []string{"MIT"}, FilePath: "LICENSE"}
bsd := &licenses.Metadata{Types: []string{"BSD-3-Clause"}, FilePath: "A/B/LICENSE"}
mitLicense := &licenses.License{Metadata: mit}
bsdLicense := &licenses.License{Metadata: bsd}
testModule.Licenses = []*licenses.License{bsdLicense, mitLicense}
sort.Slice(testModule.Units, func(i, j int) bool {
return testModule.Units[i].Path < testModule.Units[j].Path
})
// github.com/valid/module_name
testModule.Units[0].Licenses = []*licenses.Metadata{mit}
// github.com/valid/module_name/A
testModule.Units[1].Licenses = []*licenses.Metadata{mit}
// github.com/valid/module_name/A/B
testModule.Units[2].Licenses = []*licenses.Metadata{mit, bsd}
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout*5)
defer cancel()
MustInsertModule(ctx, t, testDB, testModule)
MustInsertModule(ctx, t, testDB, stdlibModule)
for _, test := range []struct {
err error
name, fullPath, modulePath, version string
want []*licenses.License
}{
{
name: "module root",
fullPath: sample.ModulePath,
modulePath: sample.ModulePath,
version: testModule.Version,
want: []*licenses.License{testModule.Licenses[1]},
},
{
name: "package without license",
fullPath: sample.ModulePath + "/A",
modulePath: sample.ModulePath,
version: testModule.Version,
want: []*licenses.License{testModule.Licenses[1]},
},
{
name: "package with additional license",
fullPath: sample.ModulePath + "/A/B",
modulePath: sample.ModulePath,
version: testModule.Version,
want: testModule.Licenses,
},
{
name: "stdlib directory",
fullPath: "cmd",
modulePath: stdlib.ModulePath,
version: stdlibModule.Version,
want: stdlibModule.Licenses,
},
{
name: "stdlib package",
fullPath: "cmd/go",
modulePath: stdlib.ModulePath,
version: stdlibModule.Version,
want: stdlibModule.Licenses,
},
{
name: "stdlib module",
fullPath: stdlib.ModulePath,
modulePath: stdlib.ModulePath,
version: stdlibModule.Version,
want: stdlibModule.Licenses,
},
} {
t.Run(test.name, func(t *testing.T) {
u, err := testDB.GetUnit(ctx, newUnitMeta(test.fullPath, test.modulePath, test.version), internal.WithLicenses, internal.BuildContext{})
if !errors.Is(err, test.err) {
t.Fatal(err)
}
got := u.LicenseContents
sort.Slice(got, func(i, j int) bool {
return got[i].FilePath < got[j].FilePath
})
sort.Slice(test.want, func(i, j int) bool {
return test.want[i].FilePath < test.want[j].FilePath
})
for i := range got {
sort.Strings(got[i].Types)
}
for i := range test.want {
sort.Strings(test.want[i].Types)
}
cmpopt := cmpopts.IgnoreFields(licenses.License{}, "Contents")
if diff := cmp.Diff(test.want, got, cmpopt); diff != "" {
t.Errorf("mismatch (-want +got):\n%s", diff)
}
})
}
}
func TestGetModuleLicenses(t *testing.T) {
t.Parallel()
modulePath := "test.module"
testModule := sample.Module(modulePath, "v1.2.3", "", "foo", "bar")
testModule.Packages()[0].Licenses = []*licenses.Metadata{{Types: []string{"ISC"}, FilePath: "LICENSE"}}
testModule.Packages()[1].Licenses = []*licenses.Metadata{{Types: []string{"MIT"}, FilePath: "foo/LICENSE"}}
testModule.Packages()[2].Licenses = []*licenses.Metadata{{Types: []string{"GPL2"}, FilePath: "bar/LICENSE.txt"}}
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
testModule.Licenses = nil
for _, p := range testModule.Packages() {
testModule.Licenses = append(testModule.Licenses, &licenses.License{
Metadata: p.Licenses[0],
Contents: []byte(`Lorem Ipsum`),
})
}
MustInsertModule(ctx, t, testDB, testModule)
var moduleID int
query := `
SELECT m.id
FROM modules m
WHERE
m.module_path = $1
AND m.version = $2;`
if err := testDB.db.QueryRow(ctx, query, modulePath, testModule.Version).Scan(&moduleID); err != nil {
t.Fatal(err)
}
got, err := testDB.getModuleLicenses(ctx, moduleID)
if err != nil {
t.Fatal(err)
}
// We only want the top-level license.
wantLicenses := []*licenses.License{testModule.Licenses[0]}
if diff := cmp.Diff(wantLicenses, got); diff != "" {
t.Errorf("testDB.getModuleLicenses(ctx, %q, %q) mismatch (-want +got):\n%s", modulePath, testModule.Version, diff)
}
}
func TestGetLicensesBypass(t *testing.T) {
t.Parallel()
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
bypassDB := NewBypassingLicenseCheck(testDB.db)
// Insert with non-redistributable license contents.
m := nonRedistributableModule()
MustInsertModule(ctx, t, bypassDB, m)
// check reads and the second license in the module and compares it with want.
check := func(bypass bool, want *licenses.License) {
t.Helper()
db := testDB
if bypass {
db = bypassDB
}
u, err := db.GetUnit(ctx, newUnitMeta(sample.ModulePath, sample.ModulePath, m.Version), internal.WithLicenses, internal.BuildContext{})
if err != nil {
t.Fatal(err)
}
lics := u.LicenseContents
if len(lics) != 2 {
t.Fatal("did not read two licenses")
}
if diff := cmp.Diff(want, lics[1]); diff != "" {
t.Errorf("mismatch (-want, +got):\n%s", diff)
}
}
// Read with license bypass includes non-redistributable license contents.
check(true, sample.NonRedistributableLicense)
// Read without license bypass does not include non-redistributable license contents.
nonRedist := *sample.NonRedistributableLicense
nonRedist.Contents = nil
check(false, &nonRedist)
}
func nonRedistributableModule() *internal.Module {
m := sample.Module(sample.ModulePath, "v1.2.3", "")
sample.AddLicense(m, sample.NonRedistributableLicense)
m.IsRedistributable = false
m.Packages()[0].IsRedistributable = false
m.Units[0].IsRedistributable = false
return m
}
// makeModuleNonRedistributable mutates the passed-in module by marking it
// non-redistributable along with each of its packages and units. It allows
// us to re-use existing test data without defining a non-redistributable
// counterpart to each.
func makeModuleNonRedistributable(m *internal.Module) {
sample.AddLicense(m, sample.NonRedistributableLicense)
m.IsRedistributable = false
for _, p := range m.Packages() {
p.IsRedistributable = false
}
for i := range m.Units {
m.Units[i].IsRedistributable = false
}
}