files:     []string{`p1\a.bat`, `p2\a.bat`},
		PATH:      []string{`.\p1`, `p1`, `p2`},
		searchFor: `a`,
		want:      `p1\a.bat`,
	},
}

func TestLookPathWindows(t *testing.T) {
	// Not parallel: uses Chdir and Setenv.

	// We are using the "printpath" command mode to test exec.Command here,
	// so we won't be calling helperCommand to resolve it.