The testing partitions are:
Strings with only single blank characters
Strings with sequences of blank characters in the middle of
the string
Strings with sequences of blank characters at the
beginning/end of string
Examples of tests are:
The quick brown fox jumped over the lazy dog (only single
blanks)
The quick brown
fox jumped over the lazy dog (different numbers of blanks in
the sequence)
The quick brown fox
jumped over the lazy dog (1st blank is a sequence)
The quick brown fox jumped over the lazy dog (Last blank is a sequence)
The quick brown fox
jumped over the lazy dog (2 blanks at beginning)
The quick brown
fox jumped over the lazy dog (several blanks at beginning)
The quick brown fox jumped over the lazy dog (2 blanks at end)
The quick brown fox jumped over the lazy dog (several blanks at end)