add tests for 'dW' motion, which are same as tests for 'dw' motion but testing for WORD instead of word where possible

This commit is contained in:
2025-09-27 07:14:26 +01:00
parent 074ba2bcde
commit cd31bdd0d5
2 changed files with 237 additions and 2 deletions

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@@ -1 +1 @@
hello world again
hello wor!d again

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@@ -1086,5 +1086,240 @@ struct
end)
]
val tests = [dhDelete, dlDelete, djDelete, ddDelete, dkDelete, dwDelete]
val dWDelete = describe "delete motion 'dW'"
[ test
"deletes last char and moves cursor back by one \
\when used on last char of last word in buffer \
\and buffer ends with a newline preceded by a non-newline"
(fn _ =>
let
(* arrange *)
val originalString = "hello world\n"
val originalIdx = String.size originalString - 2
val app = TestUtils.init originalString
val app = AppWith.idx (app, originalIdx)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "hello worl\n"
val actualString = LineGap.toString buffer
val expectedIdx = String.size expectedString - 2
in
Expect.isTrue
(expectedString = actualString andalso expectedIdx = cursorIdx)
end)
, test "deletes second WORD as expected when there are three words" (fn _ =>
let
(* arrange *)
(* 'l' in world is replaced with '!'
* so it fits with the definition of a WORD *)
val originalString = "hello wor!d again\n"
val app = TestUtils.init originalString
(* all the different positions the cursor can be
* on the second word *)
val app1 = AppWith.idx (app, 6)
val app2 = AppWith.idx (app, 7)
val app3 = AppWith.idx (app, 8)
val app4 = AppWith.idx (app, 9)
val app5 = AppWith.idx (app, 10)
(* act *)
val newApp1 = TestUtils.updateMany (app1, "dW")
val newApp2 = TestUtils.updateMany (app2, "dW")
val newApp3 = TestUtils.updateMany (app3, "dW")
val newApp4 = TestUtils.updateMany (app4, "dW")
val newApp5 = TestUtils.updateMany (app5, "dW")
(* assert *)
val expectedString1 = "hello again\n"
val expectedString2 = "hello wagain\n"
val expectedString3 = "hello woagain\n"
val expectedString4 = "hello woragain\n"
val expectedString5 = "hello wor!again\n"
val actualString1 = LineGap.toString (#buffer newApp1)
val actualString2 = LineGap.toString (#buffer newApp2)
val actualString3 = LineGap.toString (#buffer newApp3)
val actualString4 = LineGap.toString (#buffer newApp4)
val actualString5 = LineGap.toString (#buffer newApp5)
val stringsAreExpected =
expectedString1 = actualString1
andalso expectedString2 = actualString2
andalso expectedString3 = actualString3
andalso expectedString4 = actualString4
andalso expectedString5 = actualString5
val expectedCursor1 = 6
val expectedCursor2 = 7
val expectedCursor3 = 8
val expectedCursor4 = 9
val expectedCursor5 = 10
val actualCursor1 = #cursorIdx newApp1
val actualCursor2 = #cursorIdx newApp2
val actualCursor3 = #cursorIdx newApp3
val actualCursor4 = #cursorIdx newApp4
val actualCursor5 = #cursorIdx newApp5
val cursorsAreExpected =
expectedCursor1 = actualCursor1
andalso expectedCursor2 = actualCursor2
andalso expectedCursor3 = actualCursor3
andalso expectedCursor4 = actualCursor4
andalso expectedCursor5 = actualCursor5
in
Expect.isTrue (stringsAreExpected andalso cursorsAreExpected)
end)
, test
"deletes newline when there is a newline after current word \
\and there is another word following that newline"
(fn _ =>
let
(* arrange *)
val originalString = "hello\nworld\nagain\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 1)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "hworld\nagain\n"
val expectedCursor = 1
val actualString = LineGap.toString buffer
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes past first punctuation char \
\when on an alpha char and there is no space \
\between alpha and punctuation"
(fn _ =>
let
(* arrange *)
val originalString = "hello!world again\n"
val app = TestUtils.init originalString
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "again\n"
val expectedCursor = 0
val actualString = LineGap.toString buffer
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes past first alpha char when on punctuation \
\and there is no space between punctuation and alpha"
(fn _ =>
let
(* arrange *)
val originalString = "!#%&QWERTY#! hello\n"
val app = TestUtils.init originalString
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "hello\n"
val expectedCursor = 0
val actualString = LineGap.toString buffer
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes until first alpha char \
\when cursor is on space and next char is alpha"
(fn _ =>
let
(* arrange *)
val originalString = "h ello\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 1)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "hello\n"
val actualString = LineGap.toString buffer
val expectedCursor = 1
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes until first alpha char \
\when cursor is on space, many spaces are ahead, \
\and first char after spaces is alpha"
(fn _ =>
let
(* arrange *)
val originalString = "h ello\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 3)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "h ello\n"
val actualString = LineGap.toString buffer
val expectedCursor = 3
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes until first punctuation char \
\when cursor is on space and next non-space char is punctuation"
(fn _ =>
let
(* arrange *)
val originalString = "! @#$%\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 2)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "dW")
(* assert *)
val expectedString = "! @#$%\n"
val actualString = LineGap.toString buffer
val expectedCursor = 2
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
]
val tests =
[dhDelete, dlDelete, djDelete, ddDelete, dkDelete, dwDelete, dWDelete]
end