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(defun smt:test (line exps expf)
"line - line of scala code
exps - expected codes of syntax class
expf - expected font-locks"
(let ((line-length (length line)))
(with-temp-buffer
(insert (format "package ensime
object Ensime {
%s
}" line))
(scala-mode)
(font-lock-ensure)
(re-search-backward (regexp-opt `(,line)) nil t)
(let ((end-point (+ (point) line-length))
(acc-syntax "")
(acc-font ""))
(while (< (point) end-point)
(setq acc-syntax (concat acc-syntax (number-to-string (syntax-class (syntax-after (point))))))
(setq acc-font (concat acc-font (font-lock-to-string (get-text-property (point) 'face))))
(forward-char))
(should (equal acc-syntax exps))
(should (equal acc-font expf))))))
(defun font-lock-to-string (font-lock)
(pcase font-lock
(`nil "-")
('font-lock-constant-face "C")
('font-lock-variable-name-face "V")
('font-lock-keyword-face "K")
('font-lock-comment-face "O")
('font-lock-comment-delimiter-face "D")
('font-lock-doc-face "U")
('font-lock-type-face "T")
('font-lock-string-face "S")
(_ "?")))
(ert-deftest smt:syntax-class-and-font-lock-test-1 ()
(smt:test
"val `tvw xyz/*` = `abc def/*` + 123 /* comment `abc` abc */ + 456"
"22203333333333301033333333333010222011022222220333330222011010222"
"KKK-VVVVVVVVVVV-K---------------CCC-DDDOOOOOOOOOOOOOOOOOOOO---CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-2 ()
(smt:test
"val |+| = 123"
"2220333010222"
"KKK-VVV-K-CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-3 ()
(smt:test
"val a_|+| = 123"
"222023333010222"
"KKK-VVVVV-K-CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-4 ()
(smt:test
"val a = 123 /** hello */"
"222020102220111022222011"
"KKK-V-K-CCC-UUUUUUUUUUUU"))
(ert-deftest smt:syntax-class-and-font-lock-test-5 ()
(smt:test
"val a = <td>hello</td>"
"2220201012212222211221"
"KKK-V-K---------------"))
(ert-deftest smt:syntax-class-and-font-lock-test-6 ()
(smt:test
"// val |--| = 123"
"11022203333010222"
"DDDOOOOOOOOOOOOOO"))
(ert-deftest smt:syntax-class-and-font-lock-test-7 ()
(smt:test
"val xs = 1 :: 2 :: Nil"
"2220220102033020330222"
"KKK-VV-K-C----C----CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-8 ()
(smt:test
"val xs = 1:: 2 :: Nil"
"222022010211020330222"
"KKK-VV-K-C---C----CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-9 ()
(smt:test
"val xs = 1 ::2 :: Nil"
"222022010201120330222"
"KKK-VV-K-C---C----CCC"))
(ert-deftest smt:syntax-class-and-font-lock-test-10 ()
(smt:test
"case a :: (2) :: Nil"
"22220203304250330222"
"KKKK-V-TT--C--CC-TTT"))
(ert-deftest smt:syntax-class-and-font-lock-test-11 ()
(smt:test
"abc :<: def"
"22203330222"
"--------KKK"))
(ert-deftest smt:syntax-class-and-font-lock-test-12 ()
(smt:test
"Foo<T>"
"222121"
"CCC-C-"))
(ert-deftest smt:syntax-class-and-font-lock-test-13 ()
(smt:test
"class X[T<:Mapper[T]](t: T){}"
"22222024211222222425542102545"
"KKKKK-T-CKKCCCCCC-C----K-T---"))
(ert-deftest smt:syntax-class-and-font-lock-test-14 ()
(smt:test
"class X[T <: Mapper[T]](t: T){}"
"2222202420330222222425542102545"
"KKKKK-T-C-KK-CCCCCC-C----K-T---"))
(ert-deftest smt:syntax-class-and-font-lock-test-15 ()
(smt:test
"val c = /* hello */ 20"
"2220201011022222011022"
"KKK-V-K-DDDOOOOOOOO-CC"))
(ert-deftest smt:syntax-class-and-font-lock-test-16 ()
(smt:test
"val c = /* hello **/ 20"
"22202010110222220111022"
"KKK-V-K-DDDOOOOOOOOO-CC"))
(ert-deftest smt:syntax-class-and-font-lock-test-17 ()
(smt:test
"val c = /**** hello */ 20"
"2220201011111022222011022"
"KKK-V-K-DDDDDDOOOOOOOO-CC"))
(ert-deftest smt:syntax-class-and-font-lock-test-18 ()
(smt:test
"val c = //**** hello */ 20"
"22202010111111022222011022"
"KKK-V-K-DDOOOOOOOOOOOOOOOO"))
(ert-deftest smt:syntax-class-and-font-lock-test-19 ()
(smt:test
"val c = 1 /////////// big comment"
"222020102011111111111022202222222"
"KKK-V-K-C-DDDDDDDDDDDDOOOOOOOOOOO"))
(ert-deftest smt:syntax-class-and-font-lock-test-20 ()
(smt:test
"val c = s\"result $sum\""
"2220201027222222012227"
"KKK-V-K--SSSSSSSSVVVVS"))
(ert-deftest smt:syntax-class-and-font-lock-test-21 ()
(smt:test
"val c = s\"$sum-123\""
"2220201027122212227"
"KKK-V-K--SVVVVSSSSS"))
(ert-deftest smt:syntax-class-and-font-lock-test-22 ()
(smt:test
"val c = s\"${sum.getOrElse(\"\")} - $sum\""
"22202010271422212222222224775501012227"
"KKK-V-K--SSSSSSSSSSSSSSSSSSSSSSSSSSSSS"))
(ert-deftest smt:syntax-class-and-font-lock-test-23 ()
"Test that `[!%&*+/?\\\\^|~-#:<=>@]\*/` will be treated as punctuation and
_not_ a symbol. Doing so would cause comment strings such as `/* Comment &*/` to
not be recognized as a delimiter, causing the entire file to treated as a
comment. A concrete example may be viewed at https://github.com/scala/scala/blob/v2.11.11/src/reflect/scala/reflect/internal/Symbols.scala#L863"
(smt:test
"/* &*/"
"110111"
"DDDOOO"))
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