navneetlal / isogram-csharp-problem

Isogram

Objective: Setup a solution with test cases to determine if a word or phrase is an isogram.

An isogram (also known as a "nonpattern word") is a word or phrase without a repeating letter, however spaces and hyphens are allowed to appear multiple times.

Examples of isograms:

• lumberjacks
• background
• downstream
• six-year-old

The word isograms, however, is not an isogram, because the s repeats.

Test Scenarios

• Should hold true for empty string ``
• Should hold true for word isogram with lower case characters
• Should hold false for word eleven
• Should hold true for long reported english word like subdermatoglyphic
• Should hold true for word with duplicated character in mixed case Alphabet
• Should hold true for word with hyphen thumbscrew-japingly
• Should hold true for word with duplicated hyphen six-year-old
• Should hold true for name which is separated by spaces

Note:

• The name of the solution should exactly be isogram-csharp-problem.sln
• The name of the test folder should be Isogram.Tests
• Don't change the content of files .gitignore and .travis.yml

Source

Wikipedia https://en.wikipedia.org/wiki/Isogram