test: add PathValid unit test

Author: andyzhangx

internal/os/filesystem/api.go

@@ -44,6 +44,10 @@ func pathValid(path string) (bool, error) {
 	return strings.HasPrefix(strings.ToLower(string(output)), "true"), nil
 }
 
+// PathValid determines whether all elements of a path exist
+//   https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.management/test-path?view=powershell-7
+// for a remote path, determines whether connection is ok
+//   e.g. in a SMB server connection, if password is changed, connection will be lost, this func will return false
 func (APIImplementor) PathValid(path string) (bool, error) {
 	return pathValid(path)
 }

internal/os/filesystem/api_test.go

@@ -0,0 +1,39 @@
+// +build windows
+
+package filesystem
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPathValid(t *testing.T) {
+	tests := []struct {
+		remotepath     string
+		expectedResult bool
+		expectError    bool
+	}{
+		{
+			"c:",
+			true,
+			false,
+		},
+		{
+			"invalid-path",
+			false,
+			false,
+		},
+	}
+
+	for _, test := range tests {
+		result, err := pathValid(test.remotepath)
+		assert.Equal(t, result, test.expectedResult, "Expect result not equal with pathValid(%s) return: %q, expected: %q, error: %v",
+			test.remotepath, result, test.expectedResult, err)
+		if test.expectError {
+			assert.NotNil(t, err, "Expect error during pathValid(%s)", test.remotepath)
+		} else {
+			assert.Nil(t, err, "Expect error is nil during pathValid(%s)", test.remotepath)
+		}
+	}
+}