(module xml-match-tests mzscheme
(require (lib "pretty.ss"))
(require "../xml.ss"
"../html.ss")
(define-syntax run-test
(syntax-rules ()
((run-test desc test expected-result)
(let ((expected expected-result))
(printf "~nRunning test ~s:~n" desc)
(pretty-print (quote test))
(let ((actual test))
(if (equal? actual expected)
(begin (printf "gave the expected result: ")
(pretty-print actual))
(write (format "Unexpected result: ~s~nexpected ~s~n" actual expected) (current-error-port))))))))
(define-syntax compile-match
(syntax-rules ()
[(compile-match pat action0 action ...)
(lambda (x)
(xml-match x [pat action0 action ...]))]))
(run-test "basic match of a top-level pattern var"
(xml-match '(e 3 4 5)
[,y (list "matched" y)])
'("matched" (e 3 4 5)))
(run-test "match of simple element contents with pattern vars"
((compile-match (e ,a ,b ,c) (list a b c)) '(e 3 4 5))
'(3 4 5))
(run-test "match a literal pattern within a element pattern"
((compile-match (e ,a "abc" ,c) (list a c)) '(e 3 "abc" 5))
'(3 5))
(run-test "match an empty element"
((compile-match (e) "match") '(e))
"match")
(run-test "match a nested element"
((compile-match (e ,a (f ,b ,c) ,d) (list a b c d)) '(e 3 (f 4 5) 6))
'(3 4 5 6))
(run-test "match a dot-rest pattern within a nested element"
((compile-match (e ,a (f . ,y) ,d) (list a y d)) '(e 3 (f 4 5) 6))
'(3 (4 5) 6))
(run-test "match a basic list pattern"
((compile-match (list ,a ,b ,c ,d ,e) (list a b c d e)) '("i" "j" "k" "l" "m"))
'("i" "j" "k" "l" "m"))
(run-test "match a list pattern with a dot-rest pattern"
((compile-match (list ,a ,b ,c . ,y) (list a b c y)) '("i" "j" "k" "l" "m"))
'("i" "j" "k" ("l" "m")))
(run-test "basic test of a multi-clause xml-match"
(xml-match '(a 1 2 3)
((a ,n) n)
((a ,m ,n) (+ m n))
((a ,m ,n ,o) (list "matched" (list m n o))))
'("matched" (1 2 3)))
(run-test "basic test of a xml-match-let"
(xml-match-let ([(a ,i ,j) '(a 1 2)])
(+ i j))
3)
(run-test "basic test of a xml-match-let*"
(xml-match-let* ([(a ,k) '(a (b 1 2))]
[(b ,i ,j) k])
(list i j))
'(1 2))
(run-test "match of top-level literal string pattern"
((compile-match "abc" "match") "abc")
"match")
(run-test "match of top-level literal number pattern"
((compile-match 77 "match") 77)
"match")
(run-test "test of multi-expression guard in pattern"
(xml-match '(a 1 2 3)
((a ,n) n)
((a ,m ,n) (+ m n))
((a ,m ,n ,o) (guard (number? m) (number? n) (number? o)) (list "guarded-matched" (list m n o))))
'("guarded-matched" (1 2 3)))
(run-test "basic test of multiple action items in match clause"
((compile-match 77 (display "match-77\n") "match") 77)
"match")
(define simple-eval
(lambda (x)
(xml-match x
[,i (guard (integer? i)) i]
[(+ ,x ,y) (+ (simple-eval x) (simple-eval y))]
[(* ,x ,y) (* (simple-eval x) (simple-eval y))]
[(- ,x ,y) (- (simple-eval x) (simple-eval y))]
[(/ ,x ,y) (/ (simple-eval x) (simple-eval y))]
[,otherwise (error "simple-eval: invalid expression" x)])))
(run-test "basic test of explicit recursion in match clauses"
(simple-eval '(* (+ 7 3) (- 7 3)))
40)
(define simple-eval2
(lambda (x)
(xml-match x
[,i (guard (integer? i)) i]
[(+ ,[x] ,[y]) (+ x y)]
[(* ,[x] ,[y]) (* x y)]
[(- ,[x] ,[y]) (- x y)]
[(/ ,[x] ,[y]) (/ x y)]
[,otherwise (error "simple-eval: invalid expression" x)])))
(run-test "basic test of anonymous catas"
(simple-eval2 '(* (+ 7 3) (- 7 3)))
40)
(define simple-eval3
(lambda (x)
(xml-match x
[,i (guard (integer? i)) i]
[(+ ,[simple-eval3 -> x] ,[simple-eval3 -> y]) (+ x y)]
[(* ,[simple-eval3 -> x] ,[simple-eval3 -> y]) (* x y)]
[(- ,[simple-eval3 -> x] ,[simple-eval3 -> y]) (- x y)]
[(/ ,[simple-eval3 -> x] ,[simple-eval3 -> y]) (/ x y)]
[,otherwise (error "simple-eval: invalid expression" x)])))
(run-test "test of named catas"
(simple-eval3 '(* (+ 7 3) (- 7 3)))
40)
(run-test "successful test of attribute matching: pat-var in value position"
(xml-match '(e (@ (z 1)) 3 4 5)
[(e z: ,d ,a ,b ,c) (list d a b c)]
[,otherwise #f])
'(1 3 4 5))
(run-test "failing test of attribute matching: pat-var in value position"
(xml-match '(e (@ (a 1)) 3 4 5)
[(e z: ,d ,a ,b ,c) (list d a b c)]
[,otherwise #f])
#f)
(run-test "test of attribute matching: literal in value position"
((compile-match (e z: 1 ,a ,b ,c) (list a b c)) '(e (@ (z 1)) 3 4 5))
'(3 4 5))
(run-test "test of attribute matching: default-value spec in value position"
((compile-match (e z: (,d 1) ,a ,b ,c) (list d a b c)) '(e 3 4 5))
'(1 3 4 5))
(run-test "test of attribute matching: multiple attributes in pattern"
((compile-match (e y: ,e z: ,d ,a ,b ,c) (list e d a b c)) '(e (@ (z 1) (y 2)) 3 4 5))
'(2 1 3 4 5))
(run-test "basic test of ellipses in pattern; no ellipses in output"
((compile-match (e ,i ...) i) '(e 3 4 5))
'(3 4 5))
(run-test "test of non-null tail pattern following ellipses"
((compile-match (e ,i ... ,a ,b) i) '(e 3 4 5 6 7))
'(3 4 5 ))
(define simple-eval4
(lambda (x)
(xml-match x
[,i (guard (integer? i)) i]
[(+ ,[x*] ...) (apply + x*)]
[(* ,[x*] ...) (apply * x*)]
[(- ,[x] ,[y]) (- x y)]
[(/ ,[x] ,[y]) (/ x y)]
[,otherwise (error "simple-eval: invalid expression" x)])))
(run-test "test of catas with ellipses in pattern"
(simple-eval4 '(* (+ 7 3) (- 7 3)))
40)
(run-test "simple test of ellipses in pattern and output"
((compile-match (e ,i ...) ((lambda rst (cons 'f rst)) i ...)) '(e 3 4 5))
'(f 3 4 5))
(define simple-eval5
(lambda (x)
(xml-match x
[,i (guard (integer? i)) i]
[(+ ,[x*] ...) (+ x* ...)]
[(* ,[x*] ...) (* x* ...)]
[(- ,[x] ,[y]) (- x y)]
[(/ ,[x] ,[y]) (/ x y)]
[,otherwise (error "simple-eval: invalid expression" x)])))
(run-test "test of catas with ellipses in pattern and output"
(simple-eval5 '(* (+ 7 3) (- 7 3)))
40)
(run-test "test of nested dots in pattern and output"
((lambda (x)
(xml-match x
[(d (a ,b ...) ...)
(list (list b ...) ...)]))
'(d (a 1 2 3) (a 4 5) (a 6 7 8) (a 9 10)))
'((1 2 3) (4 5) (6 7 8) (9 10)))
(run-test "test successful tail pattern match (after ellipses)"
(xml-match '(e 3 4 5 6 7) ((e ,i ... 6 7) #t) (,otherwise #f))
#t)
(run-test "test failing tail pattern match (after ellipses), too few items"
(xml-match '(e 3 4 5 6) ((e ,i ... 6 7) #t) (,otherwise #f))
#f)
(run-test "test failing tail pattern match (after ellipses), too many items"
(xml-match '(e 3 4 5 6 7 8) ((e ,i ... 6 7) #t) (,otherwise #f))
#f)
(run-test "test failing tail pattern match (after ellipses), wrong items"
(xml-match '(e 3 4 5 7 8) ((e ,i ... 6 7) #t) (,otherwise #f))
#f)
(run-test "test of ellipses in output quasiquote"
(xml-match '(e 3 4 5 6 7)
[(e ,i ... 6 7) `("start" ,i ... "end")]
[,otherwise #f])
'("start" 3 4 5 "end"))
(run-test "test of ellipses in output quasiquote, with more complex unquote expression"
(xml-match '(e 3 4 5 6 7)
[(e ,i ... 6 7) `("start" ,(list 'wrap i) ... "end")]
[,otherwise #f])
'("start" (wrap 3) (wrap 4) (wrap 5) "end"))
(run-test "test of a quasiquote expr within the dotted unquote expression"
(xml-match '(e 3 4 5 6 7)
[(e ,i ... 6 7) `("start" ,`(wrap ,i) ... "end")]
[,otherwise #f])
'("start" (wrap 3) (wrap 4) (wrap 5) "end"))
(define-element d)
(define-element a)
(define x (d (a 1 2 3) (a 4 5) (a 6 7 8) (a 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(,`(,b ...) ...)])
'((1 2 3) (4 5) (6 7 8) (9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
(list (list b ...) ...)])
'((1 2 3) (4 5) (6 7 8) (9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx ,`(y ,b ...) ...)])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx ,@(map (lambda (i) `(y ,@i)) b))])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx ,(cons 'y b) ...)])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx ,`(y ,b ...) ...)])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx ,`(y ,@b) ...)])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`((,b ...) ...)])
'((1 2 3) (4 5) (6 7 8) (9 10)))
(run-test "quasiquote tests"
(xml-match x
[(d (a ,b ...) ...)
`(xx (y ,b ...) ...)])
'(xx (y 1 2 3) (y 4 5) (y 6 7 8) (y 9 10)))
(define (prog-trans p)
(xml-match p
[(Program (Start ,start-time) (Duration ,dur) (Series ,series-title)
(Description . ,desc)
,cl)
(h4:div (h4:p start-time
(h4:br) series-title
(h4:br) desc)
cl)]
[(Program (Start ,start-time) (Duration ,dur) (Series ,series-title)
(Description . ,desc))
(h4:div (h4:p start-time
(h4:br) series-title
(h4:br) desc))]
[(Program (Start ,start-time) (Duration ,dur) (Series ,series-title))
(h4:div (h4:p start-time
(h4:br) series-title))]))
(run-test "test for shrinking-order list of pattern clauses"
(prog-trans '(Program (Start "2001-07-05T20:00:00") (Duration "PT1H") (Series "HomeFront")))
'(div (p "2001-07-05T20:00:00" (br) "HomeFront")))
(run-test "test nested xml-match forms (each with ellipsis)"
(xml-match '(a (b 1 2) (b 3 4 5) (b 6 7))
[(a ,i ...)
(list (xml-match i
[(b ,j ...) (list i j ...)]) ...)])
'(((b 1 2) 1 2) ((b 3 4 5) 3 4 5) ((b 6 7) 6 7)))
(run-test "test shadowing of same identifier in nested xml-match-let"
(xml-match-let ([(a ,k) '(a (b 1 2))])
(xml-match-let ([(c ,i ,k) '(c 3 4)])
(list i k)))
'(3 4))
(run-test "test ellipsis within a finite-length pattern following ellipsis"
(xml-match '(a 1 2 3 4 (c 5 6 7))
[(a ,b ... (c ,i ...)) (list b ... i ...)])
'(1 2 3 4 5 6 7))
(run-test "test tunnelling dotted vars info inwards to a nested xml-match with no dotted vars"
(xml-match '(a 1 2 3 4)
[(a ,i ...) (xml-match '(b 5 6 7)
[(b ,j ,k ,l) (list j k l i ...)])])
'(5 6 7 1 2 3 4))
(run-test "second test of tunnelling dotted vars info inwards to a nested xml-match with no dotted vars"
(xml-match '(a 1 2 3 4)
[(a ,i ...) (xml-match '(b 5 6 7)
[,j (list j i ...)])])
'((b 5 6 7) 1 2 3 4))
(run-test "test ellipsis in xml-match-let body"
(xml-match-let ([(a ,i ...) '(a 1 2 3 4)]
[,j '(b 5 6 7)])
(list j i ...))
'((b 5 6 7) 1 2 3 4))
(run-test "test shadowing of dotted vars, by a non-dotted var"
(xml-match-let* ([(a ,i ,j ...) '(a 1 2 3 4)]
[(b ,k . ,j) '(b 5 6 7 8 9)])
(list i k j))
'(1 5 (6 7 8 9)))
)
(require xml-match-tests)