test1: ---
assert(listOf("Hello", "World").contains("Name"))
       |                        |
       |                        false
       [Hello, World]
---
test2: ---
assert("Hello".contains(str))
               |        |
               |        a
               false
---
test3: ---
assert("Hello".contains(str, ignoreCase = true))
               |        |
               |        a
               false
---
test4: ---
assert("Hello".contains(char))
               |        |
               |        a
               false
---
test5: ---
assert("Hello".contains(char, ignoreCase = true))
               |        |
               |        a
               false
---
