40 lines
987 B
Elixir
40 lines
987 B
Elixir
defmodule Strings do
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use Koans
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koan "Strings are there to represent text" do
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assert "hello" == :__
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end
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koan "They can be put together" do
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assert "hello world" == :__ <> "world"
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end
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koan "Or pulled apart when needed" do
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assert :__ == String.split("hello world")
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end
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koan "Be careful, a message may be altered" do
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assert :__ == String.replace("An awful day", "awful", "incredible")
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end
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koan "But strings never lie about themselves" do
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assert true == String.contains?("An incredible day", :__)
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end
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koan "Sometimes you want just the opposite of what is given" do
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assert :__ == String.reverse("ananab")
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end
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koan "Other times a little cleaning is in order" do
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assert :__ == String.strip(" \n banana\n ")
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end
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koan "Repetition is the mother of learning" do
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assert "StringStringString" == String.duplicate(:__, 3)
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end
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koan "Strings can be louder when necessary" do
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assert "LISTEN" == String.upcase(:__)
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end
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end
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