1 files changed, 76 insertions, 0 deletions
diff --git a/src/syscall/fs_wasip1_test.go b/src/syscall/fs_wasip1_test.go
new file mode 100644
index 0000000..f27e6a8
--- /dev/null
+++ b/src/syscall/fs_wasip1_test.go
@@ -0,0 +1,76 @@
+// Copyright 2023 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.
+
+//go:build wasip1
+
+package syscall_test
+
+import (
+	"syscall"
+	"testing"
+)
+
+var joinPathTests = [...]struct {
+	dir, file, path string
+}{
+	0:  {".", ".", "."},
+	1:  {"./", "./", "./"},
+	2:  {"././././", ".", "."},
+	3:  {".", "./././", "./"},
+	4:  {".", "a", "a"},
+	5:  {".", "a/b", "a/b"},
+	6:  {".", "..", ".."},
+	7:  {".", "../", "../"},
+	8:  {".", "../../", "../../"},
+	9:  {".", "../..", "../.."},
+	10: {".", "../..//..///", "../../../"},
+	11: {"/", "/", "/"},
+	12: {"/", "a", "/a"},
+	13: {"/", "a/b", "/a/b"},
+	14: {"/a", "b", "/a/b"},
+	15: {"/", ".", "/"},
+	16: {"/", "..", "/"},
+	17: {"/", "../../", "/"},
+	18: {"/", "/../a/b/c", "/a/b/c"},
+	19: {"/", "/../a/b/c", "/a/b/c"},
+	20: {"/", "./hello/world", "/hello/world"},
+	21: {"/a", "../", "/"},
+	22: {"/a/b/c", "..", "/a/b"},
+	23: {"/a/b/c", "..///..///", "/a/"},
+	24: {"/a/b/c", "..///..///..", "/"},
+	25: {"/a/b/c", "..///..///..///..", "/"},
+	26: {"/a/b/c", "..///..///..///..///..", "/"},
+	27: {"/a/b/c/", "/d/e/f/", "/a/b/c/d/e/f/"},
+	28: {"a/b/c/", ".", "a/b/c"},
+	29: {"a/b/c/", "./d", "a/b/c/d"},
+	30: {"a/b/c/", "./d/", "a/b/c/d/"},
+	31: {"a/b/", "./c/d/", "a/b/c/d/"},
+	32: {"../", "..", "../.."},
+	33: {"a/b/c/d", "e/../..", "a/b/c"},
+	34: {"a/b/c/d", "./e/../..", "a/b/c"},
+	35: {"a/b/c/d", "./e/..//../../f/g//", "a/b/f/g/"},
+	36: {"../../../", "a/../../b/c", "../../b/c"},
+	37: {"/a/b/c", "/.././/hey!", "/a/b/hey!"},
+}
+
+func TestJoinPath(t *testing.T) {
+	for _, test := range joinPathTests {
+		t.Run("", func(t *testing.T) {
+			path := syscall.JoinPath(test.dir, test.file)
+			if path != test.path {
+				t.Errorf("join(%q,%q): want=%q got=%q", test.dir, test.file, test.path, path)
+			}
+		})
+	}
+}
+
+func BenchmarkJoinPath(b *testing.B) {
+	for _, test := range joinPathTests {
+		b.Run("", func(b *testing.B) {
+			for i := 0; i < b.N; i++ {
+				syscall.JoinPath(test.dir, test.file)
+			}
+		})
+	}
+}