lib/csc/strings-test.csc


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(define-library (csc strings-test)
  (import (scheme base)
          (only (csc testing)
            assert
            assert-equal
            test)
          (csc strings))
  (begin


    (test has-prefix?-good
      (assert-equal #t (has-prefix? "asdfjkl;" "asdf")))


    (test has-prefix?-bad
      (assert-equal #f (has-prefix? "asdbjkl;" "asdf")))


    (test has-prefix?-too-long
      (assert-equal #f (has-prefix? "as" "asdf")))


    (test str-quote-simple
      (assert-equal "\"hello\"" (str-quote "hello")))


    (test str-quote-escape
      (assert-equal "\"this string \\\" has a quote\"" (str-quote "this string \" has a quote")))


    (test index-ok
      (assert-equal 8 (index "dabsadfdabcdfdfd" "abc")))


    (test index-one-letter
      (assert-equal 8 (index "sdfdfdfsasdfe" "a")))


    (test index-notfound
      (assert-equal
        -1
        (index "def" "a")))


    (test last-index-last
      (assert-equal
        4
        (last-index "ababa" "a")))


    (test last-index-penultimate
      (assert-equal
        4
        (last-index "ababab" "a")))


    (test last-index-notfound
      (assert-equal
        -1
        (last-index "abcdfads" ";")))


    (test contains
      (assert-equal
        #t
        (contains? "abc" "b")))


    (test doesnt-contain
      (assert-equal
        #f
        (contains? "abc" "d")))


    (test contains-empty
      (assert-equal
        #t
        (contains? "" "")))


    (test empty-contains
      (assert-equal
        #f
        (contains? "" "a")))


    (test join-,
      (assert-equal "a,b,c" (join "," '("a" "b" "c"))))


    (test join-none
      (assert-equal "" (join "," '())))


    (test join-singleton
      (assert-equal "x" (join "," '("x"))))


    (test join-empty
      (assert-equal "abc" (join "" '("a" "b" "c"))))


    (test split-empty
      (assert-equal '("") (split "" " ")))

    (test split
      (assert-equal '("a" "b") (split "a b" " ")))


    (test split-trailing-empty
      (assert-equal '("a" "") (split "a " " ")))


    (test split-n
      (assert-equal '("a" "b" "c d e") (split "a b c d e" " " 3)))


    (test split-none
      (assert-equal
        '()
        (split "a b c d e" " " 0)))))