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// Copyright 2016 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 noder
import (
"reflect"
"runtime"
"testing"
"cmd/compile/internal/syntax"
)
func eq(a, b []string) bool {
if len(a) != len(b) {
return false
}
for i := 0; i < len(a); i++ {
if a[i] != b[i] {
return false
}
}
return true
}
func TestPragmaFields(t *testing.T) {
var tests = []struct {
in string
want []string
}{
{"", []string{}},
{" \t ", []string{}},
{`""""`, []string{`""`, `""`}},
{" a'b'c ", []string{"a'b'c"}},
{"1 2 3 4", []string{"1", "2", "3", "4"}},
{"\n☺\t☹\n", []string{"☺", "☹"}},
{`"1 2 " 3 " 4 5"`, []string{`"1 2 "`, `3`, `" 4 5"`}},
{`"1""2 3""4"`, []string{`"1"`, `"2 3"`, `"4"`}},
{`12"34"`, []string{`12`, `"34"`}},
{`12"34 `, []string{`12`}},
}
for _, tt := range tests {
got := pragmaFields(tt.in)
if !eq(got, tt.want) {
t.Errorf("pragmaFields(%q) = %v; want %v", tt.in, got, tt.want)
continue
}
}
}
func TestPragcgo(t *testing.T) {
type testStruct struct {
in string
want []string
}
var tests = []testStruct{
{`go:cgo_export_dynamic local`, []string{`cgo_export_dynamic`, `local`}},
{`go:cgo_export_dynamic local remote`, []string{`cgo_export_dynamic`, `local`, `remote`}},
{`go:cgo_export_dynamic local' remote'`, []string{`cgo_export_dynamic`, `local'`, `remote'`}},
{`go:cgo_export_static local`, []string{`cgo_export_static`, `local`}},
{`go:cgo_export_static local remote`, []string{`cgo_export_static`, `local`, `remote`}},
{`go:cgo_export_static local' remote'`, []string{`cgo_export_static`, `local'`, `remote'`}},
{`go:cgo_import_dynamic local`, []string{`cgo_import_dynamic`, `local`}},
{`go:cgo_import_dynamic local remote`, []string{`cgo_import_dynamic`, `local`, `remote`}},
{`go:cgo_import_static local`, []string{`cgo_import_static`, `local`}},
{`go:cgo_import_static local'`, []string{`cgo_import_static`, `local'`}},
{`go:cgo_dynamic_linker "/path/"`, []string{`cgo_dynamic_linker`, `/path/`}},
{`go:cgo_dynamic_linker "/p ath/"`, []string{`cgo_dynamic_linker`, `/p ath/`}},
{`go:cgo_ldflag "arg"`, []string{`cgo_ldflag`, `arg`}},
{`go:cgo_ldflag "a rg"`, []string{`cgo_ldflag`, `a rg`}},
}
if runtime.GOOS != "aix" {
tests = append(tests, []testStruct{
{`go:cgo_import_dynamic local remote "library"`, []string{`cgo_import_dynamic`, `local`, `remote`, `library`}},
{`go:cgo_import_dynamic local' remote' "lib rary"`, []string{`cgo_import_dynamic`, `local'`, `remote'`, `lib rary`}},
}...)
} else {
// cgo_import_dynamic with a library is slightly different on AIX
// as the library field must follow the pattern [libc.a/object.o].
tests = append(tests, []testStruct{
{`go:cgo_import_dynamic local remote "lib.a/obj.o"`, []string{`cgo_import_dynamic`, `local`, `remote`, `lib.a/obj.o`}},
// This test must fail.
{`go:cgo_import_dynamic local' remote' "library"`, []string{`<unknown position>: usage: //go:cgo_import_dynamic local [remote ["lib.a/object.o"]]`}},
}...)
}
var p noder
var nopos syntax.Pos
for _, tt := range tests {
p.err = make(chan syntax.Error)
gotch := make(chan [][]string, 1)
go func() {
p.pragcgobuf = nil
p.pragcgo(nopos, tt.in)
if p.pragcgobuf != nil {
gotch <- p.pragcgobuf
}
}()
select {
case e := <-p.err:
want := tt.want[0]
if e.Error() != want {
t.Errorf("pragcgo(%q) = %q; want %q", tt.in, e, want)
continue
}
case got := <-gotch:
want := [][]string{tt.want}
if !reflect.DeepEqual(got, want) {
t.Errorf("pragcgo(%q) = %q; want %q", tt.in, got, want)
continue
}
}
}
}