1 files changed, 79 insertions, 0 deletions
diff --git a/src/internal/xcoff/ar_test.go b/src/internal/xcoff/ar_test.go
new file mode 100644
index 0000000..83333d6
--- /dev/null
+++ b/src/internal/xcoff/ar_test.go
@@ -0,0 +1,79 @@
+// Copyright 2018 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 xcoff
+
+import (
+	"reflect"
+	"testing"
+)
+
+type archiveTest struct {
+	file              string
+	hdr               ArchiveHeader
+	members           []*MemberHeader
+	membersFileHeader []FileHeader
+}
+
+var archTest = []archiveTest{
+	{
+		"testdata/bigar-ppc64",
+		ArchiveHeader{AIAMAGBIG},
+		[]*MemberHeader{
+			{"printbye.o", 836},
+			{"printhello.o", 860},
+		},
+		[]FileHeader{
+			{U64_TOCMAGIC},
+			{U64_TOCMAGIC},
+		},
+	},
+	{
+		"testdata/bigar-empty",
+		ArchiveHeader{AIAMAGBIG},
+		[]*MemberHeader{},
+		[]FileHeader{},
+	},
+}
+
+func TestOpenArchive(t *testing.T) {
+	for i := range archTest {
+		tt := &archTest[i]
+		arch, err := OpenArchive(tt.file)
+		if err != nil {
+			t.Error(err)
+			continue
+		}
+		if !reflect.DeepEqual(arch.ArchiveHeader, tt.hdr) {
+			t.Errorf("open archive %s:\n\thave %#v\n\twant %#v\n", tt.file, arch.ArchiveHeader, tt.hdr)
+			continue
+		}
+
+		for i, mem := range arch.Members {
+			if i >= len(tt.members) {
+				break
+			}
+			have := &mem.MemberHeader
+			want := tt.members[i]
+			if !reflect.DeepEqual(have, want) {
+				t.Errorf("open %s, member %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
+			}
+
+			f, err := arch.GetFile(mem.Name)
+			if err != nil {
+				t.Error(err)
+				continue
+			}
+			if !reflect.DeepEqual(f.FileHeader, tt.membersFileHeader[i]) {
+				t.Errorf("open %s, member file header %d:\n\thave %#v\n\twant %#v\n", tt.file, i, f.FileHeader, tt.membersFileHeader[i])
+			}
+		}
+		tn := len(tt.members)
+		an := len(arch.Members)
+		if tn != an {
+			t.Errorf("open %s: len(Members) = %d, want %d", tt.file, an, tn)
+		}
+
+	}
+}