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|
{-# LANGUAGE OverloadedStrings #-}
module Text.XmlHtml.CursorTests (cursorTests) where
import Data.Maybe
import Test.Framework
import Test.Framework.Providers.HUnit
import Test.HUnit hiding (Test, Node)
import Text.XmlHtml
import Text.XmlHtml.Cursor
import Text.XmlHtml.TestCommon
------------------------------------------------------------------------------
-- Tests of navigating with the Cursor type ----------------------------------
------------------------------------------------------------------------------
cursorTests :: [Test]
cursorTests = [
testIt "fromNodeAndCurrent " $ fromNodeAndCurrent,
testIt "fromNodesAndSiblings " $ fromNodesAndSiblings,
testIt "leftSiblings " $ leftSiblings,
testIt "emptyFromNodes " $ emptyFromNodes,
testIt "cursorNEQ " $ cursorNEQ,
testCase "cursorNavigation " $ cursorNavigation,
testCase "cursorSearch " $ cursorSearch,
testCase "cursorMutation " $ cursorMutation,
testCase "cursorInsertion " $ cursorInsertion,
testCase "cursorDeletion " $ cursorDeletion
]
fromNodeAndCurrent :: Bool
fromNodeAndCurrent = all (\n -> n == current (fromNode n)) ns
where ns = [
TextNode "foo",
Comment "bar",
Element "foo" [] [],
Element "root" [] [
TextNode "foo",
Comment "bar",
Element "foo" [] []
]
]
fromNodesAndSiblings :: Bool
fromNodesAndSiblings = n == siblings (fromJust $ fromNodes n)
where n = [
TextNode "foo",
Comment "bar",
Element "foo" [] [],
Element "root" [] [
TextNode "foo",
Comment "bar",
Element "foo" [] []
]
]
leftSiblings :: Bool
leftSiblings = fromJust $ do
r <- do
c1 <- fromNodes n
c2 <- right c1
c3 <- right c2
return c3
return (n == siblings r)
where n = [
TextNode "foo",
Comment "bar",
Element "foo" [] [],
Element "root" [] [
TextNode "foo",
Comment "bar",
Element "foo" [] []
]
]
emptyFromNodes :: Bool
emptyFromNodes = isNothing (fromNodes [])
cursorNEQ :: Bool
cursorNEQ = let a = fromNode (Element "a" [] [])
b = fromNode (Element "b" [] [])
in a /= b
-- Sample node structure for running cursor tests.
cursorTestTree :: Node
cursorTestTree = Element "department" [("code", "A17")] [
Element "employee" [("name", "alice")] [
Element "address" [] [
TextNode "124 My Road"
],
Element "phone" [] [
TextNode "555-1234"
]
],
Element "employee" [("name", "bob")] [
Comment "My best friend",
Element "address" [] [
TextNode "123 My Road"
],
Element "temp" [] []
],
Element "employee" [("name", "camille")] [
Element "phone" [] [
TextNode "800-888-8888"
]
]
]
cursorNavigation :: Assertion
cursorNavigation = do
let r = fromNode cursorTestTree
let Just e1 = firstChild r
let Just e2 = getChild 1 r
let Just e3 = lastChild r
assertBool "rootElem" $ isElement (current r)
assertBool "parent of root" $ isNothing (parent r)
assertBool "getChild bounds" $ isNothing (getChild 3 r)
assertBool "getChild negative bounds" $ isNothing (getChild (-1) r)
assertBool "firstChild" $
getAttribute "name" (current e1) == Just "alice"
assertBool "childAt 1 " $
getAttribute "name" (current e2) == Just "bob"
assertBool "lastChild " $
getAttribute "name" (current e3) == Just "camille"
do let Just a = lastChild e2
assertBool "firstChild on empty element" $ isNothing (firstChild a)
assertBool "getChild on empty element" $ isNothing (getChild 0 a)
assertBool "lastChild on empty element" $ isNothing (lastChild a)
do let Just a = right e1
let Just b = right a
assertBool "two paths #1" $ a == e2
assertBool "two paths #2" $ b == e3
assertBool "right off end" $ isNothing (right b)
let Just c = left e3
let Just d = left e2
assertBool "two paths #3" $ c == e2
assertBool "two paths #4" $ d == e1
assertBool "left off end" $ isNothing (left d)
do let Just r1 = parent e2
assertEqual "child -> parent" (current r) (current r1)
do let Just cmt = firstChild e2
assertBool "topNode" $ tagName (topNode cmt) == Just "department"
assertBool "topNodes" $ map tagName (topNodes cmt) == [ Just "department" ]
assertBool "first child of comment" $ isNothing (firstChild cmt)
assertBool "last child of comment" $ isNothing (lastChild cmt)
do assertBool "nextDF down" $ nextDF r == Just e1
let Just cmt = firstChild e2
assertBool "nextDF right" $ nextDF cmt == right cmt
let Just em = lastChild e2
assertBool "nextDF up-right" $ nextDF em == Just e3
let Just pelem = lastChild e3
let Just ptext = lastChild pelem
assertBool "nextDF end" $ isNothing (nextDF ptext)
cursorSearch :: Assertion
cursorSearch = do
let r = fromNode cursorTestTree
let Just e1 = findChild isFirst r
let Just e2 = findChild ((==(Just "bob")) . getAttribute "name" . current) r
let Just e3 = findChild isLast r
assertBool "findChild isFirst" $
getAttribute "name" (current e1) == Just "alice"
assertBool "findChild" $
getAttribute "name" (current e2) == Just "bob"
assertBool "findChild isLast" $
getAttribute "name" (current e3) == Just "camille"
assertBool "findLeft Just" $ findLeft (const True) e2 == Just e1
assertBool "findLeft Nothing" $ findLeft (const False) e2 == Nothing
assertBool "findRight Just" $ findRight (const True) e2 == Just e3
assertBool "findRight Nothing" $ findRight (const False) e2 == Nothing
assertBool "findRec" $ findRec (not . hasChildren) r == (firstChild =<< firstChild e1)
assertBool "isChild true" $ isChild e1
assertBool "isChild false" $ not $ isChild r
assertBool "getNodeIndex" $ getNodeIndex e2 == 1
cursorMutation :: Assertion
cursorMutation = do
let r = fromNode cursorTestTree
let Just e1 = firstChild r
let Just e2 = right e1
let Just e3 = lastChild r
do let Just cmt = firstChild e2
let cmt' = setNode (Comment "Not my friend any more") cmt
let Just e2' = parent cmt'
assertBool "setNode" $ current e2' ==
Element "employee" [("name", "bob")] [
Comment "Not my friend any more",
Element "address" [] [
TextNode "123 My Road"
],
Element "temp" [] []
]
do let e1' = modifyNode (setAttribute "name" "bryan") e1
let n = current e1'
assertBool "modifyNode" $ getAttribute "name" n == Just "bryan"
do let myModifyM = return . setAttribute "name" "chelsea"
e3' <- modifyNodeM myModifyM e3
let n = current e3'
assertBool "modifyNode" $ getAttribute "name" n == Just "chelsea"
cursorInsertion :: Assertion
cursorInsertion = do
let r = fromNode cursorTestTree
let Just alice = firstChild r
let Just bob = getChild 1 r
let Just camille = lastChild r
let fred = Element "employee" [("name", "fred")] []
-- Stock insertLeft
do let ins = insertLeft fred bob
assertBool "insertLeft leaves cursor" $
getAttribute "name" (current ins) == Just "bob"
let Just a = findLeft isFirst ins
assertBool "insertLeft 1" $
getAttribute "name" (current a) == Just "alice"
let Just b = right a
assertBool "insertLeft 2" $
getAttribute "name" (current b) == Just "fred"
let Just c = right b
assertBool "insertLeft 3" $
getAttribute "name" (current c) == Just "bob"
let Just d = right c
assertBool "insertLeft 4" $
getAttribute "name" (current d) == Just "camille"
-- insertLeft on first child
do let ins = insertLeft fred alice
assertBool "insertLeft firstChild" $
getAttribute "name" (current ins) == Just "alice"
let Just a = findLeft isFirst ins
assertBool "insertLeft firstChild 1" $
getAttribute "name" (current a) == Just "fred"
-- Stock insertRight
do let ins = insertRight fred alice
assertBool "insertRight leaves cursor" $
getAttribute "name" (current ins) == Just "alice"
let Just a = findRight isLast ins
assertBool "insertRight 1" $
getAttribute "name" (current a) == Just "camille"
let Just b = left a
assertBool "insertRight 2" $
getAttribute "name" (current b) == Just "bob"
let Just c = left b
assertBool "insertRight 3" $
getAttribute "name" (current c) == Just "fred"
let Just d = left c
assertBool "insertRight 4" $
getAttribute "name" (current d) == Just "alice"
-- insertRight on last child
do let ins = insertRight fred camille
assertBool "insertRight lastChild" $
getAttribute "name" (current ins) == Just "camille"
let Just a = findRight isLast ins
assertBool "insertRight lastChild 1" $
getAttribute "name" (current a) == Just "fred"
let mary = Element "employee" [("name", "mary")] []
let new = [fred, mary]
-- insertManyLeft
do let ins = insertManyLeft new camille
assertBool "insertManyLeft leaves cursor" $
getAttribute "name" (current ins) == Just "camille"
let Just a = left ins
assertBool "insertManyLeft 1" $
getAttribute "name" (current a) == Just "mary"
let Just b = left a
assertBool "insertManyLeft 2" $
getAttribute "name" (current b) == Just "fred"
let Just c = left b
assertBool "insertManyLeft 3" $
getAttribute "name" (current c) == Just "bob"
-- insertManyRight
do let ins = insertManyRight new alice
assertBool "insertManyRight leaves cursor" $
getAttribute "name" (current ins) == Just "alice"
let Just a = right ins
assertBool "insertManyRight 1" $
getAttribute "name" (current a) == Just "fred"
let Just b = right a
assertBool "insertManyRight 2" $
getAttribute "name" (current b) == Just "mary"
let Just c = right b
assertBool "insertManyRight 3" $
getAttribute "name" (current c) == Just "bob"
-- insertFirstChild and insertLastChild
do let Just ins1 = insertFirstChild fred r
let Just ins2 = insertLastChild mary ins1
let Just a = firstChild ins2
assertBool "insert children 1" $
getAttribute "name" (current a) == Just "fred"
let Just b = right a
assertBool "insert children 2" $
getAttribute "name" (current b) == Just "alice"
let Just c = right b
assertBool "insert children 3" $
getAttribute "name" (current c) == Just "bob"
let Just d = right c
assertBool "insert children 4" $
getAttribute "name" (current d) == Just "camille"
let Just e = right d
assertBool "insert children 5" $
getAttribute "name" (current e) == Just "mary"
assertBool "insert children 6" $ isLast e
-- non-element insertFirstChild and insertLastChild
do let Just cmt = firstChild bob
assertBool "non-elem insertFirstChild" $
insertFirstChild fred cmt == Nothing
assertBool "non-elem insertLastChild" $
insertLastChild fred cmt == Nothing
assertBool "non-elem insertManyFirstChild" $
insertManyFirstChild new cmt == Nothing
assertBool "non-elem insertManyLastChild" $
insertManyLastChild new cmt == Nothing
-- insertManyFirstChild
do let Just ins = insertManyFirstChild new r
let Just a = firstChild ins
assertBool "insertManyFirstChild 1" $
getAttribute "name" (current a) == Just "fred"
let Just b = right a
assertBool "insertManyFirstChild 2" $
getAttribute "name" (current b) == Just "mary"
let Just c = right b
assertBool "insertManyFirstChild 3" $
getAttribute "name" (current c) == Just "alice"
let Just d = right c
assertBool "insertManyFirstChild 4" $
getAttribute "name" (current d) == Just "bob"
let Just e = right d
assertBool "insertManyFirstChild 5" $
getAttribute "name" (current e) == Just "camille"
assertBool "insertManyFirstChild 6" $ isLast e
-- insertManyLastChild
do let Just ins = insertManyLastChild new r
let Just a = firstChild ins
assertBool "insertManyFirstChild 1" $
getAttribute "name" (current a) == Just "alice"
let Just b = right a
assertBool "insertManyFirstChild 2" $
getAttribute "name" (current b) == Just "bob"
let Just c = right b
assertBool "insertManyFirstChild 3" $
getAttribute "name" (current c) == Just "camille"
let Just d = right c
assertBool "insertManyFirstChild 4" $
getAttribute "name" (current d) == Just "fred"
let Just e = right d
assertBool "insertManyFirstChild 5" $
getAttribute "name" (current e) == Just "mary"
assertBool "insertManyFirstChild 6" $ isLast e
-- insertGoLeft from middle
do let ins = insertGoLeft fred bob
let Just a = right ins
assertBool "insertGoLeft 1" $
getAttribute "name" (current ins) == Just "fred"
assertBool "insertGoLeft 2" $
getAttribute "name" (current a) == Just "bob"
-- insertGoLeft from end
do let ins = insertGoLeft fred alice
let Just a = right ins
assertBool "insertGoLeft 3" $
getAttribute "name" (current ins) == Just "fred"
assertBool "insertGoLeft 4" $
getAttribute "name" (current a) == Just "alice"
-- insertGoRight from middle
do let ins = insertGoRight fred bob
let Just a = left ins
assertBool "insertGoRight 1" $
getAttribute "name" (current ins) == Just "fred"
assertBool "insertGoRight 2" $
getAttribute "name" (current a) == Just "bob"
-- insertGoRight from end
do let ins = insertGoRight fred camille
let Just a = left ins
assertBool "insertGoRight 3" $
getAttribute "name" (current ins) == Just "fred"
assertBool "insertGoRight 4" $
getAttribute "name" (current a) == Just "camille"
cursorDeletion :: Assertion
cursorDeletion = do
let r = fromNode cursorTestTree
let Just alice = firstChild r
let Just bob = getChild 1 r
let Just camille = lastChild r
-- removeLeft success
do let Just (n,del) = removeLeft bob
let [b,c] = siblings del
assertBool "removeLeft node1" $ getAttribute "name" n == Just "alice"
assertBool "removeLeft node2" $ getAttribute "name" b == Just "bob"
assertBool "removeLeft node3" $ getAttribute "name" c == Just "camille"
-- removeLeft failure
do assertBool "removeLeft failure" $ isNothing (removeLeft alice)
-- removeRight success
do let Just (n,del) = removeRight bob
let [a,b] = siblings del
assertBool "removeLeft node1" $ getAttribute "name" a == Just "alice"
assertBool "removeLeft node2" $ getAttribute "name" b == Just "bob"
assertBool "removeLeft node3" $ getAttribute "name" n == Just "camille"
-- removeRight failure
do assertBool "removeLeft failure" $ isNothing (removeRight camille)
-- removeGoLeft success
do let Just del = removeGoLeft bob
let Just c = right del
assertBool "removeGoLeft 1" $
getAttribute "name" (current del) == Just "alice"
assertBool "removeGoLeft 2" $
getAttribute "name" (current c) == Just "camille"
-- removeGoLeft failure
do assertBool "removeGoLeft failure" $ isNothing (removeGoLeft alice)
-- removeGoRight success
do let Just del = removeGoRight bob
let Just a = left del
assertBool "removeGoRight 1" $
getAttribute "name" (current del) == Just "camille"
assertBool "removeGoRight 2" $
getAttribute "name" (current a) == Just "alice"
-- removeGoLeft failure
do assertBool "removeGoRight failure" $ isNothing (removeGoRight camille)
-- removeGoUp success
do let Just del = removeGoUp bob
let [a,c] = childNodes (current del)
assertBool "removeGoUp 1" $ getAttribute "name" a == Just "alice"
assertBool "removeGoUp 2" $ getAttribute "name" c == Just "camille"
-- removeGoUp failure
do assertBool "removeGoUp failure" $ isNothing (removeGoUp r)
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