begin adding tests for 'yw' yank motion

This commit is contained in:
2026-02-04 09:26:57 +00:00
parent 2a8785a373
commit 83c660818e
4 changed files with 253 additions and 15 deletions

View File

@@ -68,17 +68,12 @@ struct
let
val cursorIdx = Int.max (textLength - 1, 0)
val buffer = LineGap.goToIdx (cursorIdx, buffer)
val cursorIdx =
if Cursor.isOnNewlineAfterChr (buffer, cursorIdx) then cursorIdx - 1
else cursorIdx
in
if Cursor.isOnNewlineAfterChr (buffer, cursorIdx) then
let
val cursorIdx = cursorIdx - 1
in
NormalFinish.buildTextAndClear
(app, buffer, cursorIdx, searchList, [], bufferModifyTime)
end
else
NormalFinish.buildTextAndClear
(app, buffer, cursorIdx, searchList, [], bufferModifyTime)
NormalFinish.buildTextAndClear
(app, buffer, cursorIdx, searchList, [], bufferModifyTime)
end
else
NormalFinish.buildTextAndClear

View File

@@ -200,9 +200,10 @@ struct
fun yankWhenMovingForward (app: app_type, fMove, count) =
let
val {buffer, cursorIdx, ...} = app
val buffer = LineGap.goToIdx (cursorIdx, buffer)
val high = fMove (buffer, cursorIdx, count)
val high = if high = #textLength buffer then high - 1 else high
val buffer = LineGap.goToIdx (high, buffer)
val length = high - cursorIdx

View File

@@ -1,3 +1 @@
hello
world
again
hello world

View File

@@ -650,5 +650,249 @@ struct
end)
]
val tests = [yhYank, ylYank, ykYank, yjYank, yyYank]
val ywYank = describe "yank motion 'yw'"
[ test "yanks last character when cursor is on last character of line"
(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 app = TestUtils.updateMany (app, "yw")
(* assert *)
val expectedString = "d"
in
TestUtils.expectYank (app, expectedString)
end)
, test "deletes second word as expected when there are three words" (fn _ =>
let
(* arrange *)
val originalString = "hello world 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, "yw")
val newApp2 = TestUtils.updateMany (app2, "yw")
val newApp3 = TestUtils.updateMany (app3, "yw")
val newApp4 = TestUtils.updateMany (app4, "yw")
val newApp5 = TestUtils.updateMany (app5, "yw")
(* assert *)
val expectedString1 = "hello again\n"
val expectedString2 = "hello wagain\n"
val expectedString3 = "hello woagain\n"
val expectedString4 = "hello woragain\n"
val expectedString5 = "hello worlagain\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 "does not delete newline following word" (fn _ =>
let
(* arrange *)
val originalString = "hello\nworld\nagain\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 0)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "yw")
(* assert *)
val expectedString = "\nworld\nagain\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 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, "yw")
(* assert *)
val expectedString = "!world!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 until first alpha char when on punctuation \
\and there is no space between punctuation and alpha"
(fn _ =>
let
(* arrange *)
val originalString = "!#%&QWERTY#!\n"
val app = TestUtils.init originalString
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "yw")
(* assert *)
val expectedString = "QWERTY#!\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, "yw")
(* 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, "yw")
(* 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 = "! @#$%\n"
val app = TestUtils.init originalString
val app = AppWith.idx (app, 2)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "yw")
(* assert *)
val expectedString = "! @#$%\n"
val actualString = LineGap.toString buffer
val expectedCursor = 2
val stringIsExpected = expectedString = actualString
val cursorIsExpected = expectedCursor = cursorIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
, test
"deletes last char when on last word \
\and there is no newline after current word"
(fn _ =>
let
(* arrange *)
val app = TestUtils.init "hello world"
val app = AppWith.idx (app, 6)
(* act *)
val {buffer, cursorIdx, ...} = TestUtils.updateMany (app, "yw")
(* assert *)
val expectedString = "hello "
val actualString = LineGap.toString buffer
val expectedIdx = 5
val stringIsExpected = expectedString = actualString
val cursorIsExpected = cursorIdx = expectedIdx
in
Expect.isTrue (stringIsExpected andalso cursorIsExpected)
end)
]
val tests = [yhYank, ylYank, ykYank, yjYank, yyYank, ywYank]
end