blob: 8b56ec35aec5c0925452d9f845987fdcf91402e8 [file] [log] [blame]
// Copyright 2021 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"
"database/sql"
"errors"
"fmt"
"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/database"
"golang.org/x/pkgsite/internal/derrors"
"golang.org/x/pkgsite/internal/testing/sample"
)
func TestInsertSymbolNamesAndHistory(t *testing.T) {
t.Parallel()
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
mod := sample.DefaultModule()
if len(mod.Packages()) != 1 {
t.Fatalf("len(mod.Packages()) = %d; want 1", len(mod.Packages()))
}
if len(mod.Packages()[0].Documentation) != 1 {
t.Fatalf("len(mod.Packages()[0].Documentation) = %d; want 1", len(mod.Packages()[0].Documentation))
}
api := []*internal.Symbol{
sample.Constant,
sample.Variable,
sample.Function,
sample.Type,
}
mod.Packages()[0].Documentation[0].API = api
MustInsertModule(ctx, t, testDB, mod)
got, err := testDB.db.CollectStrings(ctx, `SELECT name FROM symbol_names;`)
if err != nil {
t.Fatal(err)
}
want := []string{
sample.Constant.Name,
sample.Variable.Name,
sample.Function.Name,
sample.Type.Name,
}
for _, c := range sample.Type.Children {
want = append(want, c.Name)
}
sort.Strings(got)
sort.Strings(want)
if diff := cmp.Diff(want, got); diff != "" {
t.Errorf("mismatch (-want +got):\n%s", diff)
}
compareUnitSymbols(ctx, t, testDB, mod.Packages()[0].Path, mod.ModulePath, mod.Version,
map[internal.BuildContext][]*internal.Symbol{internal.BuildContextAll: api})
want2 := symbolHistoryFromAPI(api, mod.Version)
comparePackageSymbols(ctx, t, testDB, mod.Packages()[0].Path, mod.ModulePath, mod.Version, want2)
gotHist, err := testDB.GetSymbolHistory(ctx, mod.Packages()[0].Path, mod.ModulePath)
if err != nil {
t.Fatal(err)
}
wantHist := internal.NewSymbolHistory()
wantHist.AddSymbol(sample.Constant.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(sample.Variable.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(sample.Function.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(sample.Type.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(*sample.Type.Children[0], "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(*sample.Type.Children[1], "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(*sample.Type.Children[2], "v1.0.0", internal.BuildContextAll)
if diff := cmp.Diff(wantHist, gotHist,
cmp.AllowUnexported(internal.SymbolBuildContexts{}, internal.SymbolHistory{})); diff != "" {
t.Fatalf("mismatch on symbol history(-want +got):\n%s", diff)
}
}
func TestInsertSymbolHistory_Basic(t *testing.T) {
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
mod := sample.DefaultModule()
if len(mod.Packages()) != 1 {
t.Fatalf("len(mod.Packages()) = %d; want 1", len(mod.Packages()))
}
if len(mod.Packages()[0].Documentation) != 1 {
t.Fatalf("len(mod.Packages()[0].Documentation) = %d; want 1", len(mod.Packages()[0].Documentation))
}
api := []*internal.Symbol{
sample.Constant,
sample.Variable,
sample.Function,
sample.Type,
}
mod.Packages()[0].Documentation[0].API = api
MustInsertModule(ctx, t, testDB, mod)
compareUnitSymbols(ctx, t, testDB, mod.Packages()[0].Path, mod.ModulePath, mod.Version,
map[internal.BuildContext][]*internal.Symbol{internal.BuildContextAll: api})
want2 := symbolHistoryFromAPI(api, mod.Version)
comparePackageSymbols(ctx, t, testDB, mod.Packages()[0].Path, mod.ModulePath, mod.Version, want2)
}
func TestInsertSymbolHistory_MultiVersions(t *testing.T) {
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
typ := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo",
Synopsis: "type Foo struct",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindType,
ParentName: "Foo",
},
}
methodA := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo.A",
Synopsis: "func (*Foo) A()",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindMethod,
ParentName: typ.Name,
},
}
methodB := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo.B",
Synopsis: "func (*Foo) B()",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindMethod,
ParentName: typ.Name,
},
}
typA := typ
typA.Children = []*internal.SymbolMeta{&methodA.SymbolMeta}
typB := typ
typB.Children = []*internal.SymbolMeta{&methodA.SymbolMeta, &methodB.SymbolMeta}
mod10 := moduleWithSymbols(t, "v1.0.0", []*internal.Symbol{&typ})
mod11 := moduleWithSymbols(t, "v1.1.0", []*internal.Symbol{&typA})
mod12 := moduleWithSymbols(t, "v1.2.0", []*internal.Symbol{&typB})
// Insert most recent, then oldest, then middle version.
MustInsertModule(ctx, t, testDB, mod12)
MustInsertModule(ctx, t, testDB, mod10)
MustInsertModule(ctx, t, testDB, mod11)
createwant := func(docs []*internal.Documentation) map[internal.BuildContext][]*internal.Symbol {
want := map[internal.BuildContext][]*internal.Symbol{}
for _, doc := range docs {
want[internal.BuildContext{GOOS: doc.GOOS, GOARCH: doc.GOARCH}] = doc.API
}
return want
}
want10 := createwant(mod10.Packages()[0].Documentation)
want11 := createwant(mod11.Packages()[0].Documentation)
want12 := createwant(mod12.Packages()[0].Documentation)
compareUnitSymbols(ctx, t, testDB, mod10.Packages()[0].Path, mod10.ModulePath, mod10.Version, want10)
compareUnitSymbols(ctx, t, testDB, mod11.Packages()[0].Path, mod11.ModulePath, mod11.Version, want11)
compareUnitSymbols(ctx, t, testDB, mod12.Packages()[0].Path, mod12.ModulePath, mod12.Version, want12)
want2 := internal.NewSymbolHistory()
for _, want := range []struct {
version string
buildToSymbols map[internal.BuildContext][]*internal.Symbol
}{
{mod10.Version, want10},
{mod11.Version, want11},
{mod12.Version, want12},
} {
for build, api := range want.buildToSymbols {
updateSymbols(api, func(s *internal.SymbolMeta) error {
want2.AddSymbol(*s, want.version, build)
return nil
})
}
}
comparePackageSymbols(ctx, t, testDB, mod10.Packages()[0].Path, mod10.ModulePath, mod10.Version, want2)
gotHist, err := testDB.GetSymbolHistory(ctx, mod10.Packages()[0].Path, mod10.ModulePath)
if err != nil {
t.Fatal(err)
}
typA.GOOS = internal.All
methodA.GOOS = internal.All
methodB.GOOS = internal.All
typA.GOARCH = internal.All
methodA.GOARCH = internal.All
methodB.GOARCH = internal.All
wantHist := internal.NewSymbolHistory()
wantHist.AddSymbol(typA.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(methodA.SymbolMeta, "v1.1.0", internal.BuildContextAll)
wantHist.AddSymbol(methodB.SymbolMeta, "v1.2.0", internal.BuildContextAll)
if diff := cmp.Diff(wantHist, gotHist,
cmp.AllowUnexported(internal.SymbolBuildContexts{}, internal.SymbolHistory{})); diff != "" {
t.Fatalf("mismatch on symbol history(-want +got):\n%s", diff)
}
}
func TestInsertSymbolHistory_MultiGOOS(t *testing.T) {
testDB, release := acquire(t)
defer release()
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
typ := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo",
Synopsis: "type Foo struct",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindType,
ParentName: "Foo",
},
}
methodA := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo.A",
Synopsis: "func (*Foo) A()",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindMethod,
ParentName: typ.Name,
},
}
methodB := internal.Symbol{
SymbolMeta: internal.SymbolMeta{
Name: "Foo.B",
Synopsis: "func (*Foo) B()",
Section: internal.SymbolSectionTypes,
Kind: internal.SymbolKindMethod,
ParentName: typ.Name,
},
}
mod10 := moduleWithSymbols(t, "v1.0.0", []*internal.Symbol{&typ})
mod11 := moduleWithSymbols(t, "v1.1.0", nil)
makeDocs := func() []*internal.Documentation {
return []*internal.Documentation{
sample.Documentation(
internal.BuildContextLinux.GOOS,
internal.BuildContextLinux.GOARCH,
sample.DocContents),
sample.Documentation(
internal.BuildContextWindows.GOOS,
internal.BuildContextWindows.GOARCH,
sample.DocContents),
sample.Documentation(
internal.BuildContextDarwin.GOOS,
internal.BuildContextDarwin.GOARCH,
sample.DocContents),
sample.Documentation(
internal.BuildContextJS.GOOS,
internal.BuildContextJS.GOARCH,
sample.DocContents),
}
}
mod11.Packages()[0].Documentation = makeDocs()
docs1 := mod11.Packages()[0].Documentation
symsA := []internal.Symbol{methodA}
symsB := []internal.Symbol{methodB}
createType := func(methods []internal.Symbol, goos, goarch string) []*internal.Symbol {
newTyp := typ
newTyp.GOOS = goos
newTyp.GOARCH = goarch
for _, m := range methods {
m.GOOS = goos
m.GOARCH = goarch
newTyp.Children = append(newTyp.Children, &m.SymbolMeta)
}
return []*internal.Symbol{&newTyp}
}
docs1[0].API = createType(symsA, docs1[0].GOOS, docs1[0].GOARCH)
docs1[1].API = createType(symsA, docs1[1].GOOS, docs1[1].GOARCH)
docs1[2].API = createType(symsB, docs1[2].GOOS, docs1[2].GOARCH)
docs1[3].API = createType(symsB, docs1[3].GOOS, docs1[3].GOARCH)
mod11.Packages()[0].Documentation = docs1
mod12 := moduleWithSymbols(t, "v1.2.0", nil)
mod12.Packages()[0].Documentation = makeDocs()
docs2 := mod12.Packages()[0].Documentation
docs2[0].API = createType(symsB, docs2[0].GOOS, docs2[0].GOARCH)
docs2[1].API = createType(symsB, docs2[1].GOOS, docs2[1].GOARCH)
docs2[2].API = createType(symsA, docs2[2].GOOS, docs2[2].GOARCH)
docs2[3].API = createType(symsA, docs2[3].GOOS, docs2[3].GOARCH)
mod12.Packages()[0].Documentation = docs2
// Insert most recent, then oldest, then middle version.
MustInsertModule(ctx, t, testDB, mod12)
MustInsertModule(ctx, t, testDB, mod10)
MustInsertModule(ctx, t, testDB, mod11)
createwant := func(docs []*internal.Documentation) map[internal.BuildContext][]*internal.Symbol {
want := map[internal.BuildContext][]*internal.Symbol{}
for _, doc := range docs {
want[internal.BuildContext{GOOS: doc.GOOS, GOARCH: doc.GOARCH}] = doc.API
}
return want
}
want10 := createwant(mod10.Packages()[0].Documentation)
want11 := createwant(mod11.Packages()[0].Documentation)
want12 := createwant(mod12.Packages()[0].Documentation)
compareUnitSymbols(ctx, t, testDB, mod10.Packages()[0].Path, mod10.ModulePath, mod10.Version, want10)
compareUnitSymbols(ctx, t, testDB, mod11.Packages()[0].Path, mod11.ModulePath, mod11.Version, want11)
compareUnitSymbols(ctx, t, testDB, mod12.Packages()[0].Path, mod12.ModulePath, mod12.Version, want12)
want2 := internal.NewSymbolHistory()
for _, mod := range []*internal.Module{mod10, mod11, mod12} {
for _, pkg := range mod.Packages() {
for _, doc := range pkg.Documentation {
sh := symbolHistoryFromAPI(doc.API, mod.Version)
for _, v := range sh.Versions() {
nts := sh.SymbolsAtVersion(v)
for _, stu := range nts {
for sm, us := range stu {
for _, b := range us.BuildContexts() {
want2.AddSymbol(sm, mod.Version, b)
}
}
}
}
}
}
}
comparePackageSymbols(ctx, t, testDB, mod10.Packages()[0].Path, mod10.ModulePath, mod10.Version, want2)
gotHist, err := testDB.GetSymbolHistory(ctx, mod10.Packages()[0].Path, mod10.ModulePath)
if err != nil {
t.Fatal(err)
}
typ.GOOS = internal.All
typ.GOARCH = internal.All
wantHist := internal.NewSymbolHistory()
wantHist.AddSymbol(typ.SymbolMeta, "v1.0.0", internal.BuildContextAll)
wantHist.AddSymbol(methodA.SymbolMeta, "v1.1.0", internal.BuildContextLinux)
wantHist.AddSymbol(methodA.SymbolMeta, "v1.1.0", internal.BuildContextWindows)
wantHist.AddSymbol(methodB.SymbolMeta, "v1.1.0", internal.BuildContextJS)
wantHist.AddSymbol(methodB.SymbolMeta, "v1.1.0", internal.BuildContextDarwin)
wantHist.AddSymbol(methodA.SymbolMeta, "v1.2.0", internal.BuildContextJS)
wantHist.AddSymbol(methodA.SymbolMeta, "v1.2.0", internal.BuildContextDarwin)
wantHist.AddSymbol(methodB.SymbolMeta, "v1.2.0", internal.BuildContextLinux)
wantHist.AddSymbol(methodB.SymbolMeta, "v1.2.0", internal.BuildContextWindows)
if diff := cmp.Diff(wantHist, gotHist,
cmp.AllowUnexported(internal.SymbolBuildContexts{}, internal.SymbolHistory{})); diff != "" {
t.Fatalf("mismatch on symbol history(-want +got):\n%s", diff)
}
pathID, err := GetPathID(ctx, testDB.db, mod10.Packages()[0].Path)
if err != nil {
t.Fatal(err)
}
gotHist2, err := GetSymbolHistoryForBuildContext(ctx, testDB.db,
pathID, mod10.ModulePath, internal.BuildContextWindows)
if err != nil {
t.Fatal(err)
}
wantHist2 := map[string]string{
"Foo": "v1.0.0",
"Foo.A": "v1.1.0",
"Foo.B": "v1.2.0",
}
if diff := cmp.Diff(wantHist2, gotHist2); diff != "" {
t.Fatalf("mismatch on symbol history(-want +got):\n%s", diff)
}
}
func moduleWithSymbols(t *testing.T, version string, symbols []*internal.Symbol) *internal.Module {
mod := sample.Module(sample.ModulePath, version, "")
if len(mod.Packages()) != 1 {
t.Fatalf("len(mod.Packages()) = %d; want 1", len(mod.Packages()))
}
if len(mod.Packages()[0].Documentation) != 1 {
t.Fatalf("len(mod.Packages()[0].Documentation) = %d; want 1", len(mod.Packages()[0].Documentation))
}
// symbols for goos/goarch = all/all
mod.Packages()[0].Documentation[0].API = symbols
return mod
}
func compareUnitSymbols(ctx context.Context, t *testing.T, testDB *DB,
path, modulePath, version string, wantBuildToSymbols map[internal.BuildContext][]*internal.Symbol) {
t.Helper()
unitID, err := testDB.getUnitID(ctx, path, modulePath, version)
if err != nil {
t.Fatal(err)
}
buildToSymbols, err := getUnitSymbols(ctx, testDB.db, unitID)
if err != nil {
t.Fatal(err)
}
for build, got := range buildToSymbols {
want := wantBuildToSymbols[build]
sort.Slice(got, func(i, j int) bool {
return got[i].Synopsis < got[j].Synopsis
})
for _, s := range got {
sort.Slice(s.Children, func(i, j int) bool {
return s.Children[i].Synopsis < s.Children[j].Synopsis
})
}
sort.Slice(want, func(i, j int) bool {
return want[i].Synopsis < want[j].Synopsis
})
for _, s := range want {
sort.Slice(s.Children, func(i, j int) bool {
return s.Children[i].Synopsis < s.Children[j].Synopsis
})
}
if diff := cmp.Diff(want, got,
cmpopts.IgnoreFields(internal.Symbol{}, "GOOS", "GOARCH")); diff != "" {
t.Fatalf("mismatch (-want +got):\n%s", diff)
}
}
}
func comparePackageSymbols(ctx context.Context, t *testing.T, testDB *DB,
path, modulePath, version string, want *internal.SymbolHistory) {
t.Helper()
got, err := getPackageSymbols(ctx, testDB.db, path, modulePath)
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(want, got,
cmp.AllowUnexported(internal.SymbolBuildContexts{}, internal.SymbolHistory{}),
cmpopts.IgnoreFields(internal.SymbolBuildContexts{}, "builds")); diff != "" {
t.Errorf("mismatch (-want +got):\n%s", diff)
}
}
func symbolHistoryFromAPI(api []*internal.Symbol, version string) *internal.SymbolHistory {
sh := internal.NewSymbolHistory()
updateSymbols(api, func(s *internal.SymbolMeta) error {
sh.AddSymbol(*s, version, internal.BuildContextAll)
return nil
})
return sh
}
// getUnitSymbols returns all of the symbols for the given unitID.
func getUnitSymbols(ctx context.Context, db *database.DB, unitID int) (_ map[internal.BuildContext][]*internal.Symbol, err error) {
defer derrors.Wrap(&err, "getUnitSymbols(ctx, db, %d)", unitID)
// Fetch all symbols for the unit. Order by symbol_type "Type" first, so
// that when we collect the children the structs for these symbols will
// already be created.
query := `
SELECT
s1.name AS symbol_name,
s2.name AS parent_symbol_name,
ps.section,
ps.type,
ps.synopsis,
d.goos,
d.goarch
FROM documentation_symbols ds
INNER JOIN documentation d ON d.id = ds.documentation_id
INNER JOIN package_symbols ps ON ds.package_symbol_id = ps.id
INNER JOIN symbol_names s1 ON ps.symbol_name_id = s1.id
INNER JOIN symbol_names s2 ON ps.parent_symbol_name_id = s2.id
WHERE d.unit_id = $1
ORDER BY CASE WHEN ps.type='Type' THEN 0 ELSE 1 END;`
// buildToSymbols contains all of the symbols for this unit, grouped by
// build context.
buildToSymbols := map[internal.BuildContext][]*internal.Symbol{}
// buildToNameToType contains all of the types for this unit, grouped by
// name and build context. This is used to keep track of the parent types,
// so that we can map the children to those symbols.
buildToNameToType := map[internal.BuildContext]map[string]*internal.Symbol{}
collect := func(rows *sql.Rows) error {
var (
sm internal.SymbolMeta
build internal.BuildContext
)
if err := rows.Scan(
&sm.Name, &sm.ParentName,
&sm.Section, &sm.Kind, &sm.Synopsis,
&build.GOOS, &build.GOARCH); err != nil {
return fmt.Errorf("row.Scan(): %v", err)
}
s := &internal.Symbol{
SymbolMeta: sm,
GOOS: build.GOOS,
GOARCH: build.GOARCH,
}
switch sm.Section {
// For symbols that belong to a type, map that symbol as a children of
// the parent type.
case internal.SymbolSectionTypes:
if sm.Kind == internal.SymbolKindType {
_, ok := buildToNameToType[build]
if !ok {
buildToNameToType[build] = map[string]*internal.Symbol{}
}
buildToNameToType[build][sm.Name] = s
buildToSymbols[build] = append(buildToSymbols[build], s)
} else {
nameToType, ok := buildToNameToType[build]
if !ok {
return fmt.Errorf("build context %v for parent type %q could not be found for symbol %q", build, sm.ParentName, sm.Name)
}
parent, ok := nameToType[sm.ParentName]
if !ok {
return fmt.Errorf("parent type %q could not be found for symbol %q", sm.ParentName, sm.Name)
}
parent.Children = append(parent.Children, &sm)
}
default:
buildToSymbols[build] = append(buildToSymbols[build], s)
}
return nil
}
if err := db.RunQuery(ctx, query, collect, unitID); err != nil {
return nil, err
}
return buildToSymbols, nil
}
func TestSplitSymbolName(t *testing.T) {
for _, test := range []struct {
q, wantPkg, wantSym string
}{
{"sql.DB", "sql", "DB"},
{"sql.DB.Begin", "sql", "DB.Begin"},
} {
t.Run(test.q, func(t *testing.T) {
pkg, symbol, err := splitPackageAndSymbolNames(test.q)
if err != nil || pkg != test.wantPkg || symbol != test.wantSym {
t.Errorf("splitPackageAndSymbolNames(%q) = %q, %q, %v; want = %q, %q, nil",
test.q, pkg, symbol, err, test.wantPkg, test.wantSym)
}
})
}
for _, test := range []string{
"DB",
".DB",
"sql.",
"sql.DB.Begin.Blah",
} {
t.Run(test, func(t *testing.T) {
pkg, symbol, err := splitPackageAndSymbolNames(test)
if !errors.Is(err, derrors.NotFound) {
t.Errorf("splitPackageAndSymbolNames(%q) = %q, %q, %v; want %v",
test, pkg, symbol, err, derrors.NotFound)
}
})
}
}