199 lines
6.6 KiB
Text
199 lines
6.6 KiB
Text
module
|
||
|
||
/-!
|
||
# Tests for `String` functions
|
||
-/
|
||
def abc : String := "abc"
|
||
def lean : String := "L∃∀N"
|
||
|
||
macro tk:"#test " t:term : command =>
|
||
`(#guard%$tk $t
|
||
example : $t := by decide_cbv)
|
||
|
||
/-!
|
||
Examples from documentation (added in https://github.com/leanprover/lean4/pull/4166)
|
||
-/
|
||
|
||
-- List.asString
|
||
#test ['L', '∃', '∀', 'N'].asString = "L∃∀N"
|
||
#test [].asString = ""
|
||
#test ['a', 'a', 'a'].asString = "aaa"
|
||
|
||
-- length
|
||
#test "".length = 0
|
||
#test "abc".length = 3
|
||
#test "L∃∀N".length = 4
|
||
|
||
-- push
|
||
#test "abc".push 'd' = "abcd"
|
||
#test "".push 'a' = "a"
|
||
|
||
-- append
|
||
#test "abc".append "def" = "abcdef"
|
||
#test "abc" ++ "def" = "abcdef"
|
||
#test "" ++ "" = ""
|
||
|
||
-- toList
|
||
#test "abc".toList = ['a', 'b', 'c']
|
||
#test "".toList = []
|
||
#test "\n".toList = ['\n']
|
||
|
||
-- Pos.Raw.isValid
|
||
#test String.Pos.Raw.isValid "abc" ⟨0⟩ = true
|
||
#test String.Pos.Raw.isValid "abc" ⟨1⟩ = true
|
||
#test String.Pos.Raw.isValid "abc" ⟨3⟩ = true
|
||
#test String.Pos.Raw.isValid "abc" ⟨4⟩ = false
|
||
#test String.Pos.Raw.isValid "𝒫(A)" ⟨0⟩ = true
|
||
#test String.Pos.Raw.isValid "𝒫(A)" ⟨1⟩ = false
|
||
#test String.Pos.Raw.isValid "𝒫(A)" ⟨2⟩ = false
|
||
#test String.Pos.Raw.isValid "𝒫(A)" ⟨3⟩ = false
|
||
#test String.Pos.Raw.isValid "𝒫(A)" ⟨4⟩ = true
|
||
|
||
-- get
|
||
#test "abc".get ⟨1⟩ = 'b'
|
||
#test "abc".get ⟨3⟩ = (default : Char)
|
||
#test "L∃∀N".get ⟨2⟩ = (default : Char)
|
||
|
||
-- get?
|
||
#test "abc".get? ⟨1⟩ = some 'b'
|
||
#test "abc".get? ⟨3⟩ = none
|
||
#test "L∃∀N".get? ⟨1⟩ = some '∃'
|
||
#test "L∃∀N".get? ⟨2⟩ = none
|
||
|
||
-- get!
|
||
#test "abc".get! ⟨1⟩ = 'b'
|
||
|
||
-- set
|
||
#test "abc".set ⟨1⟩ 'B' = "aBc"
|
||
#test "abc".set ⟨3⟩ 'D' = "abc"
|
||
#test "L∃∀N".set ⟨4⟩ 'X' = "L∃XN"
|
||
#test "L∃∀N".set ⟨2⟩ 'X' = "L∃∀N"
|
||
|
||
-- modify
|
||
#test abc.modify ⟨1⟩ Char.toUpper = "aBc"
|
||
#test abc.modify ⟨3⟩ Char.toUpper = "abc"
|
||
|
||
-- next
|
||
#test abc.next ⟨3⟩ = ⟨4⟩
|
||
#test "L∃∀N".next ⟨2⟩ = ⟨3⟩
|
||
#test abc.get (0 |> abc.next) = 'b'
|
||
#test lean.get (0 |> lean.next |> lean.next) = '∀'
|
||
|
||
-- prev
|
||
#test abc.get (abc.rawEndPos |> abc.prev) = 'c'
|
||
#test lean.get (lean.rawEndPos |> lean.prev |> lean.prev |> lean.prev) = '∃'
|
||
|
||
-- front
|
||
#test "abc".front = 'a'
|
||
#test "".front = (default : Char)
|
||
|
||
-- back
|
||
#test "abc".back = 'c'
|
||
#test "".back = (default : Char)
|
||
|
||
-- atEnd
|
||
#test (0 |> abc.next |> abc.next |> abc.atEnd) = false
|
||
#test (0 |> abc.next |> abc.next |> abc.next |> abc.next |> abc.atEnd) = true
|
||
#test (0 |> lean.next |> lean.next |> lean.next |> lean.atEnd) = false
|
||
#test (0 |> lean.next |> lean.next |> lean.next |> lean.next |> lean.atEnd) = true
|
||
#test abc.atEnd ⟨4⟩ = true
|
||
#test lean.atEnd ⟨7⟩ = false
|
||
#test lean.atEnd ⟨8⟩ = true
|
||
|
||
-- get'
|
||
def getInBounds? (s : String) (p : String.Pos.Raw) : Option Char :=
|
||
if h : s.atEnd p then none else some (s.get' p h)
|
||
|
||
#test "L∃∀N".get' ⟨2⟩ (by decide) = (default : Char)
|
||
#test "abc".get' 0 (by decide) = 'a'
|
||
#test let lean := "L∃∀N"; lean.get' (0 |> lean.next |> lean.next) (by decide) = '∀'
|
||
|
||
#test getInBounds? abc ⟨1⟩ = some 'b'
|
||
#test getInBounds? abc ⟨5⟩ = none
|
||
#test getInBounds? lean ⟨4⟩ = some '∀'
|
||
|
||
-- next'
|
||
def next? (s : String) (p : String.Pos.Raw) : Option Char :=
|
||
if h : s.atEnd p then none else s.get (s.next' p h)
|
||
|
||
#test let abc := "abc"; abc.get (abc.next' 0 (by decide)) = 'b'
|
||
|
||
#test next? abc ⟨1⟩ = some 'c'
|
||
#test next? abc ⟨5⟩ = none
|
||
|
||
-- posOf
|
||
#guard "abba".posOf 'a' = ⟨0⟩
|
||
#guard "abba".posOf 'z' = ⟨4⟩
|
||
#guard "L∃∀N".posOf '∀' = ⟨4⟩
|
||
|
||
-- revPosOf
|
||
#guard "abba".revPosOf 'a' = some ⟨3⟩
|
||
#guard "abba".revPosOf 'z' = none
|
||
#guard "L∃∀N".revPosOf '∀' = some ⟨4⟩
|
||
|
||
/-!
|
||
Behavior of `String.prev` (`lean_string_utf8_prev`) in special cases (see issue #9439).
|
||
-/
|
||
|
||
#test "L∃∀N".prev ⟨0⟩ = ⟨0⟩
|
||
#test "L∃∀N".prev ⟨1⟩ = ⟨0⟩
|
||
#test "L∃∀N".prev ⟨2⟩ = ⟨1⟩
|
||
#test "L∃∀N".prev ⟨3⟩ = ⟨1⟩
|
||
#test "L∃∀N".prev ⟨4⟩ = ⟨1⟩
|
||
#test "L∃∀N".prev ⟨5⟩ = ⟨4⟩
|
||
#test "L∃∀N".prev ⟨6⟩ = ⟨4⟩
|
||
#test "L∃∀N".prev ⟨7⟩ = ⟨4⟩
|
||
#test "L∃∀N".prev ⟨8⟩ = ⟨7⟩ -- rawEndPos
|
||
#test "L∃∀N".prev ⟨9⟩ = ⟨8⟩
|
||
#test "L∃∀N".prev ⟨100⟩ = ⟨99⟩ -- small value out of bounds
|
||
#test "L∃∀N".prev ⟨2 ^ 128⟩ = ⟨2 ^ 128 - 1⟩ -- large non-scalar
|
||
#test "L∃∀N".prev ⟨2 ^ 63⟩ = ⟨2 ^ 63 - 1⟩ -- scalar boundary (64-bit)
|
||
#test "L∃∀N".prev ⟨2 ^ 31⟩ = ⟨2 ^ 31 - 1⟩ -- scalar boundary (32-bit)
|
||
|
||
/-!
|
||
Behavior of `String.next` (`lean_string_utf8_next`) in special cases (see issue #9440).
|
||
-/
|
||
|
||
#test "L∃∀N".next ⟨0⟩ = ⟨1⟩
|
||
#test "L∃∀N".next ⟨1⟩ = ⟨4⟩
|
||
#test "L∃∀N".next ⟨2⟩ = ⟨3⟩
|
||
#test "L∃∀N".next ⟨3⟩ = ⟨4⟩
|
||
#test "L∃∀N".next ⟨4⟩ = ⟨7⟩
|
||
#test "L∃∀N".next ⟨5⟩ = ⟨6⟩
|
||
#test "L∃∀N".next ⟨6⟩ = ⟨7⟩
|
||
#test "L∃∀N".next ⟨7⟩ = ⟨8⟩
|
||
#test "L∃∀N".next ⟨8⟩ = ⟨9⟩
|
||
#test "L∃∀N".next ⟨9⟩ = ⟨10⟩
|
||
#test "L∃∀N".next ⟨99⟩ = ⟨100⟩ -- small value out of bounds
|
||
#test "L∃∀N".next ⟨2 ^ 128 - 1⟩ = ⟨2 ^ 128⟩ -- large non-scalar
|
||
#test "L∃∀N".next ⟨2 ^ 63 - 1⟩ = ⟨2 ^ 63⟩ -- scalar boundary (64-bit)
|
||
#test "L∃∀N".next ⟨2 ^ 31 - 1⟩ = ⟨2 ^ 31⟩ -- scalar boundary (32-bit)
|
||
|
||
-- ofByteArray
|
||
#test (String.ofByteArray ByteArray.empty (by simp)) = ""
|
||
#test (String.ofByteArray ⟨#[76, 226, 136, 131, 226, 136, 128, 78]⟩ (.intro ['L', '∃', '∀', 'N'] rfl)) = lean
|
||
|
||
#test "abc".pos? ⟨4⟩ = none
|
||
#test "L∃∀N".pos? ⟨2⟩ = none
|
||
|
||
-- #test ("abc".pos ⟨1⟩ (by decide)).get (by decide) = 'b'
|
||
#test ("abc".pos ⟨3⟩ (by decide)).get? = none
|
||
-- #test ("L∃∀N".pos ⟨1⟩ (by decide)).get (by decide) = '∃'
|
||
|
||
#test (("L∃∀N".pos ⟨0⟩ (by decide)).next (by decide)).offset = ⟨1⟩
|
||
#test (("L∃∀N".pos ⟨1⟩ (by decide)).next (by decide)).offset = ⟨4⟩
|
||
#test (("L∃∀N".pos ⟨4⟩ (by decide)).next (by decide)).offset = ⟨7⟩
|
||
#test (("L∃∀N".pos ⟨7⟩ (by decide)).next (by decide)).offset = ⟨8⟩
|
||
|
||
#test ("L∃∀N".pos ⟨0⟩ (by decide)).next?.map (·.offset) = some ⟨1⟩
|
||
#test ("L∃∀N".pos ⟨8⟩ (by decide)).next? = none
|
||
#test ("L∃∀N".pos ⟨0⟩ (by decide)).next!.offset = ⟨1⟩
|
||
|
||
#test (("L∃∀N".pos ⟨1⟩ (by decide)).prev (by decide)).offset = ⟨0⟩
|
||
#test (("L∃∀N".pos ⟨4⟩ (by decide)).prev (by decide)).offset = ⟨1⟩
|
||
#test (("L∃∀N".pos ⟨7⟩ (by decide)).prev (by decide)).offset = ⟨4⟩
|
||
#test (("L∃∀N".pos ⟨8⟩ (by decide)).prev (by decide)).offset = ⟨7⟩
|
||
|
||
#test ("L∃∀N".pos ⟨1⟩ (by decide)).prev?.map (·.offset) = some ⟨0⟩
|
||
#test ("L∃∀N".pos ⟨0⟩ (by decide)).prev? = none
|
||
#test ("L∃∀N".pos ⟨1⟩ (by decide)).prev!.offset = ⟨0⟩
|