cmd/go: convert some tests in vendor_test to the script framework

Part of converting all tests to script framework to improve
test parallelism.

Updates #36320
Updates #17751

Change-Id: I601e0fcee32b8c5bf2107b520d1dfbe12a19ad3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/213223
Reviewed-by: Jay Conrod <[email protected]>

src/cmd/go/testdata/script/build_vendor.txt

@@ -0,0 +1,41 @@
+# Build
+go build vend/x
+! stdout .
+! stderr .
+
+-- vend/dir1/dir1.go --
+package dir1
+-- vend/subdir/bad.go --
+package subdir
+
+import _ "r"
+-- vend/subdir/good.go --
+package subdir
+
+import _ "p"
+-- vend/vendor/p/p.go --
+package p
+-- vend/vendor/q/q.go --
+package q
+-- vend/vendor/vend/dir1/dir2/dir2.go --
+package dir2
+-- vend/x/invalid/invalid.go --
+package invalid
+
+import "vend/x/invalid/vendor/foo"
+-- vend/x/vendor/p/p/p.go --
+package p
+
+import _ "notfound"
+-- vend/x/vendor/p/p.go --
+package p
+-- vend/x/vendor/r/r.go --
+package r
+-- vend/x/x.go --
+package x
+
+import _ "p"
+import _ "q"
+import _ "r"
+import _ "vend/dir1"      // not vendored
+import _ "vend/dir1/dir2" // vendored

src/cmd/go/testdata/script/get_vendor.txt

@@ -0,0 +1,94 @@
+[short] skip
+
+cd $GOPATH/src/v
+go run m.go
+go test
+go list -f '{{.Imports}}'
+stdout 'v/vendor/vendor.org/p'
+go list -f '{{.TestImports}}'
+stdout 'v/vendor/vendor.org/p'
+go get -d
+go get -t -d
+
+[!net] stop
+[!exec:git] stop
+
+cd $GOPATH/src
+
+# Update
+go get 'github.com/rsc/go-get-issue-11864'
+go get -u 'github.com/rsc/go-get-issue-11864'
+exists github.com/rsc/go-get-issue-11864/vendor
+
+# get -u
+rm $GOPATH
+mkdir $GOPATH/src
+go get -u 'github.com/rsc/go-get-issue-11864'
+exists github.com/rsc/go-get-issue-11864/vendor
+
+# get -t -u
+rm $GOPATH
+mkdir $GOPATH/src
+go get -t -u 'github.com/rsc/go-get-issue-11864/...'
+exists github.com/rsc/go-get-issue-11864/vendor
+
+# Submodules
+rm $GOPATH
+mkdir $GOPATH/src
+go get -d 'github.com/rsc/go-get-issue-12612'
+go get -u -d 'github.com/rsc/go-get-issue-12612'
+exists github.com/rsc/go-get-issue-12612/vendor/golang.org/x/crypto/.git
+
+# Bad vendor (bad/imp)
+rm $GOPATH
+mkdir $GOPATH/src
+! go get -t -u 'github.com/rsc/go-get-issue-18219/bad/imp'
+stderr 'must be imported as'
+! exists github.com/rsc/go-get-issue-11864/vendor
+
+# Bad vendor (bad/imp2)
+rm $GOPATH
+mkdir $GOPATH/src
+! go get -t -u 'github.com/rsc/go-get-issue-18219/bad/imp2'
+stderr 'must be imported as'
+! exists github.com/rsc/go-get-issue-11864/vendor
+
+# Bad vendor (bad/imp3)
+rm $GOPATH
+mkdir $GOPATH/src
+! go get -t -u 'github.com/rsc/go-get-issue-18219/bad/imp3'
+stderr 'must be imported as'
+! exists github.com/rsc/go-get-issue-11864/vendor
+
+# Bad vendor (bad/...)
+rm $GOPATH
+mkdir $GOPATH/src
+! go get -t -u 'github.com/rsc/go-get-issue-18219/bad/...'
+stderr 'must be imported as'
+! exists github.com/rsc/go-get-issue-11864/vendor
+
+-- v/m.go --
+package main
+
+import (
+	"fmt"
+	"vendor.org/p"
+)
+
+func main() {
+	fmt.Println(p.C)
+}
+-- v/m_test.go --
+package main
+import (
+	"fmt"
+	"testing"
+	"vendor.org/p"
+)
+
+func TestNothing(t *testing.T) {
+	fmt.Println(p.C)
+}
+-- v/vendor/vendor.org/p/p.go --
+package p
+const C = 1

src/cmd/go/testdata/script/run_vendor.txt

@@ -0,0 +1,33 @@
+# Run
+cd vend/hello
+go run hello.go
+stdout 'hello, world'
+
+-- vend/hello/hello.go --
+package main
+
+import (
+	"fmt"
+	"strings" // really ../vendor/strings
+)
+
+func main() {
+	fmt.Printf("%s\n", strings.Msg)
+}
+-- vend/hello/hello_test.go --
+package main
+
+import (
+	"strings" // really ../vendor/strings
+	"testing"
+)
+
+func TestMsgInternal(t *testing.T) {
+	if strings.Msg != "hello, world" {
+		t.Fatalf("unexpected msg: %v", strings.Msg)
+	}
+}
+-- vend/vendor/strings/msg.go --
+package strings
+
+var Msg = "hello, world"

src/cmd/go/testdata/script/test_vendor.txt

@@ -0,0 +1,47 @@
+# Test
+cd vend/hello
+go test -v
+stdout TestMsgInternal
+stdout TestMsgExternal
+
+-- vend/hello/hello.go --
+package main
+
+import (
+	"fmt"
+	"strings" // really ../vendor/strings
+)
+
+func main() {
+	fmt.Printf("%s\n", strings.Msg)
+}
+-- vend/hello/hello_test.go --
+package main
+
+import (
+	"strings" // really ../vendor/strings
+	"testing"
+)
+
+func TestMsgInternal(t *testing.T) {
+	if strings.Msg != "hello, world" {
+		t.Fatalf("unexpected msg: %v", strings.Msg)
+	}
+}
+-- vend/hello/hellox_test.go --
+package main_test
+
+import (
+	"strings" // really ../vendor/strings
+	"testing"
+)
+
+func TestMsgExternal(t *testing.T) {
+	if strings.Msg != "hello, world" {
+		t.Fatalf("unexpected msg: %v", strings.Msg)
+	}
+}
+-- vend/vendor/strings/msg.go --
+package strings
+
+var Msg = "hello, world"

src/cmd/go/testdata/script/vendor_gopath_issue11409.txt

@@ -0,0 +1,51 @@
+[!windows] [short] stop 'this test only applies to Windows'
+
+go build run_go.go
+exec ./run_go$GOEXE $GOPATH $GOPATH/src/vend/hello
+stdout 'hello, world'
+
+-- run_go.go --
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func changeVolume(s string, f func(s string) string) string {
+	vol := filepath.VolumeName(s)
+	return f(vol) + s[len(vol):]
+}
+
+func main() {
+	gopath := changeVolume(os.Args[1], strings.ToLower)
+	dir := changeVolume(os.Args[2], strings.ToUpper)
+	cmd := exec.Command("go", "run", "hello.go")
+	cmd.Dir = dir
+	cmd.Env = append(os.Environ(), "GOPATH="+gopath)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	if err := cmd.Run(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
+
+-- vend/hello/hello.go --
+package main
+
+import (
+	"fmt"
+	"strings" // really ../vendor/strings
+)
+
+func main() {
+	fmt.Printf("%s\n", strings.Msg)
+}
+-- vend/vendor/strings/msg.go --
+package strings
+
+var Msg = "hello, world"

src/cmd/go/testdata/script/vendor_import.txt

@@ -0,0 +1,103 @@
+# Imports
+go list -f  '{{.ImportPath}} {{.Imports}}' 'vend/...' 'vend/vendor/...' 'vend/x/vendor/...'
+cmp stdout want_vendor_imports.txt
+
+-- want_vendor_imports.txt --
+vend [vend/vendor/p r]
+vend/dir1 []
+vend/hello [fmt vend/vendor/strings]
+vend/subdir [vend/vendor/p r]
+vend/x [vend/x/vendor/p vend/vendor/q vend/x/vendor/r vend/dir1 vend/vendor/vend/dir1/dir2]
+vend/x/invalid [vend/x/invalid/vendor/foo]
+vend/vendor/p []
+vend/vendor/q []
+vend/vendor/strings []
+vend/vendor/vend/dir1/dir2 []
+vend/x/vendor/p []
+vend/x/vendor/p/p [notfound]
+vend/x/vendor/r []
+-- vend/bad.go --
+package vend
+
+import _ "r"
+-- vend/dir1/dir1.go --
+package dir1
+-- vend/good.go --
+package vend
+
+import _ "p"
+-- vend/hello/hello.go --
+package main
+
+import (
+	"fmt"
+	"strings" // really ../vendor/strings
+)
+
+func main() {
+	fmt.Printf("%s\n", strings.Msg)
+}
+-- vend/hello/hello_test.go --
+package main
+
+import (
+	"strings" // really ../vendor/strings
+	"testing"
+)
+
+func TestMsgInternal(t *testing.T) {
+	if strings.Msg != "hello, world" {
+		t.Fatalf("unexpected msg: %v", strings.Msg)
+	}
+}
+-- vend/hello/hellox_test.go --
+package main_test
+
+import (
+	"strings" // really ../vendor/strings
+	"testing"
+)
+
+func TestMsgExternal(t *testing.T) {
+	if strings.Msg != "hello, world" {
+		t.Fatalf("unexpected msg: %v", strings.Msg)
+	}
+}
+-- vend/subdir/bad.go --
+package subdir
+
+import _ "r"
+-- vend/subdir/good.go --
+package subdir
+
+import _ "p"
+-- vend/vendor/p/p.go --
+package p
+-- vend/vendor/q/q.go --
+package q
+-- vend/vendor/strings/msg.go --
+package strings
+
+var Msg = "hello, world"
+-- vend/vendor/vend/dir1/dir2/dir2.go --
+package dir2
+-- vend/x/invalid/invalid.go --
+package invalid
+
+import "vend/x/invalid/vendor/foo"
+-- vend/x/vendor/p/p/p.go --
+package p
+
+import _ "notfound"
+-- vend/x/vendor/p/p.go --
+package p
+-- vend/x/vendor/r/r.go --
+package r
+-- vend/x/x.go --
+package x
+
+import _ "p"
+import _ "q"
+import _ "r"
+import _ "vend/dir1"      // not vendored
+import _ "vend/dir1/dir2" // vendored

src/cmd/go/testdata/script/vendor_import_missing.txt

@@ -0,0 +1,7 @@
+# Missing package error message
+! go build vend/x/vendor/p/p
+
+-- vend/x/vendor/p/p/p.go --
+package p
+
+import _ "notfound"

src/cmd/go/testdata/script/vendor_import_wrong.txt

@@ -0,0 +1,9 @@
+# Wrong import path
+! go build vend/x/invalid
+stderr 'must be imported as foo'
+
+-- vend/x/invalid/invalid.go --
+package invalid
+
+import "vend/x/invalid/vendor/foo"
+