Private Sub ReplaceStringVerify()
    'Test the ReplaceString function.

    Debug.Assert IsNull(ReplaceString(Null, "cA", "-")) ' Behavior #1

    Debug.Assert IsNull(ReplaceString("AbcAbcAbc", Null, "-")) ' Behavior #2

    Debug.Assert ReplaceString("AbcAbcAbc", "", "-") = "AbcAbcAbc" ' Behavior #3

    Debug.Assert ReplaceString("AbcAbcAbc", "cA") = "Abbbc" ' Behavior #4
    Debug.Assert ReplaceString("AbcAbcAbc", "cA", Null) = "Abbbc"

    Debug.Assert ReplaceString("AbcAbcAbc", "cA", "") = "Abbbc" ' Behavior #5

    Debug.Assert ReplaceString("AbcAbcAbc", "A", "AA") = "AAbcAAbcAAbc" ' Behavior #6
    Debug.Assert ReplaceString("AbcAbcAbc", "Ab", "AbAb") = "AbAbcAbAbcAbAbc"

    Debug.Assert ReplaceString("AbcAbcAbc", "cA", "-", vbBinaryCompare) = "Ab-b-bc" ' Behavior #7
    Debug.Assert ReplaceString("AbcAbcAbc", "ca", "-", vbBinaryCompare) = "AbcAbcAbc"
    Debug.Assert ReplaceString("AbcAbcAbc", "cA", "-", vbTextCompare) = "Ab-b-bc"
    Debug.Assert ReplaceString("AbcAbcAbc", "ca", "-", vbTextCompare) = "Ab-b-bc"

    Debug.Assert ReplaceString("AbcAbcAbc", "cA", "-") = "Ab-b-bc" ' Behavior #8
    Debug.Assert ReplaceString("AbcAbcAbc", "ca", "-") = "AbcAbcAbc"
    Debug.Assert ReplaceString("AbcAbcAbc", "ca", "-", Null) = "AbcAbcAbc"
    Debug.Assert ReplaceString("AbcAbcAbc", "ca", "-", "Joe") = "AbcAbcAbc"

End Sub