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-rw-r--r--test/gleam/list_test.gleam253
-rw-r--r--test/gleam/string_test.gleam9
2 files changed, 234 insertions, 28 deletions
diff --git a/test/gleam/list_test.gleam b/test/gleam/list_test.gleam
index 26489ee..13dbbcb 100644
--- a/test/gleam/list_test.gleam
+++ b/test/gleam/list_test.gleam
@@ -4,11 +4,16 @@ import gleam/list
import gleam/should
if erlang {
- const recursion_test_cycles = 999999
+ const recursion_test_cycles = 1_000_000
}
if javascript {
- const recursion_test_cycles = 16999
+ // JavaScript engines crash when exceeding a certain stack size:
+ //
+ // - Chrome 106 and NodeJS V16, V18, and V19 crash around 10_000+
+ // - Firefox 106 crashes around 35_000+.
+ // - Safari 16 crashes around 40_000+.
+ const recursion_test_cycles = 40_000
}
pub fn length_test() {
@@ -23,6 +28,10 @@ pub fn length_test() {
list.length([1, 1, 1])
|> should.equal(3)
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.length()
}
pub fn reverse_test() {
@@ -37,6 +46,10 @@ pub fn reverse_test() {
list.reverse([1, 2, 3, 4, 5])
|> should.equal([5, 4, 3, 2, 1])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.reverse
}
pub fn is_empty_test() {
@@ -57,9 +70,9 @@ pub fn contains_test() {
list.contains([], 1)
|> should.be_false
+ // TCO test
list.repeat(0, recursion_test_cycles)
|> list.contains(1)
- |> should.be_false
}
pub fn first_test() {
@@ -97,6 +110,10 @@ pub fn filter_test() {
[0, 4, 5, 7, 3]
|> list.filter(fn(x) { x < 4 })
|> should.equal([0, 3])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.filter(fn(x) { x == -1 })
}
pub fn filter_map_test() {
@@ -107,6 +124,10 @@ pub fn filter_map_test() {
[2, 4, 6, 1]
|> list.filter_map(Error)
|> should.equal([])
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.filter_map(fn(x) { Ok(x + 1) })
}
pub fn map_test() {
@@ -117,12 +138,20 @@ pub fn map_test() {
[0, 4, 5, 7, 3]
|> list.map(fn(x) { x * 2 })
|> should.equal([0, 8, 10, 14, 6])
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.map(fn(x) { x })
}
pub fn map_fold_test() {
[1, 2, 3, 4]
|> list.map_fold(from: 0, with: fn(acc, i) { #(acc + i, i * 2) })
|> should.equal(#(10, [2, 4, 6, 8]))
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.map_fold(from: 0, with: fn(acc, i) { #(acc + i, i + 1) })
}
pub fn try_map_test() {
@@ -140,6 +169,10 @@ pub fn try_map_test() {
[4, 6, 5, 7, 3]
|> list.try_map(fun)
|> should.equal(Error(7))
+
+ // TCO test
+ list.repeat(6, recursion_test_cycles)
+ |> list.try_map(fun)
}
pub fn drop_test() {
@@ -150,6 +183,10 @@ pub fn drop_test() {
[1, 2, 3, 4, 5, 6, 7, 8]
|> list.drop(5)
|> should.equal([6, 7, 8])
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.drop(recursion_test_cycles)
}
pub fn take_test() {
@@ -160,6 +197,10 @@ pub fn take_test() {
[1, 2, 3, 4, 5, 6, 7, 8]
|> list.take(5)
|> should.equal([1, 2, 3, 4, 5])
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.take(recursion_test_cycles)
}
pub fn new_test() {
@@ -191,6 +232,10 @@ pub fn append_test() {
list.append([], [])
|> should.equal([])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.append([1])
}
pub fn flatten_test() {
@@ -205,6 +250,13 @@ pub fn flatten_test() {
list.flatten([[1, 2], [], [3, 4]])
|> should.equal([1, 2, 3, 4])
+ // // TCO test
+ // case recursion_test_cycles > 2 {
+ // True ->
+ // list.repeat([[1]], recursion_test_cycles / 50)
+ // |> list.flatten()
+ // False -> []
+ // }
}
pub fn flat_map_test() {
@@ -216,6 +268,10 @@ pub fn fold_test() {
[1, 2, 3]
|> list.fold([], fn(acc, x) { [x, ..acc] })
|> should.equal([3, 2, 1])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.fold([], fn(acc, x) { [x, ..acc] })
}
pub fn fold_right_test() {
@@ -228,6 +284,10 @@ pub fn index_fold_test() {
["a", "b", "c"]
|> list.index_fold([], fn(acc, i, ix) { [#(ix, i), ..acc] })
|> should.equal([#(2, "c"), #(1, "b"), #(0, "a")])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.index_fold([], fn(acc, i, ix) { [#(ix, i), ..acc] })
}
pub fn fold_until_test() {
@@ -242,6 +302,18 @@ pub fn fold_until_test() {
},
)
|> should.equal(6)
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.fold_until(
+ from: 0,
+ with: fn(acc, n) {
+ case n < recursion_test_cycles {
+ True -> list.Continue(acc + n)
+ False -> list.Stop(acc)
+ }
+ },
+ )
}
pub fn try_fold_test() {
@@ -268,6 +340,18 @@ pub fn try_fold_test() {
},
)
|> should.equal(Error(Nil))
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.try_fold(
+ 0,
+ fn(acc, i) {
+ case i < recursion_test_cycles {
+ True -> Ok(acc + i)
+ False -> Error(Nil)
+ }
+ },
+ )
}
pub fn find_map_test() {
@@ -289,6 +373,15 @@ pub fn find_map_test() {
[1, 3]
|> list.find_map(with: f)
|> should.equal(Error(Nil))
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.find_map(with: fn(x) {
+ case x == recursion_test_cycles {
+ True -> Ok(recursion_test_cycles)
+ _ -> Error(Nil)
+ }
+ })
}
pub fn find_test() {
@@ -305,6 +398,10 @@ pub fn find_test() {
[1, 3]
|> list.find(one_that: is_two)
|> should.equal(Error(Nil))
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.find(one_that: fn(x) { x == recursion_test_cycles })
}
pub fn all_test() {
@@ -317,14 +414,6 @@ pub fn all_test() {
list.all([], fn(_) { False })
|> should.be_true
- list.repeat(False, recursion_test_cycles)
- |> list.all(fn(item) { item })
- |> should.be_false
-
- list.repeat(True, recursion_test_cycles)
- |> list.all(fn(item) { item })
- |> should.be_true
-
[1, 2, 3]
|> list.all(fn(x) {
case x {
@@ -336,6 +425,15 @@ pub fn all_test() {
}
}
})
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
+ |> list.all(fn(x) {
+ case x {
+ 0 -> True
+ _ -> False
+ }
+ })
}
pub fn any_test() {
@@ -348,14 +446,6 @@ pub fn any_test() {
list.any([], fn(_) { False })
|> should.be_false
- list.repeat(True, recursion_test_cycles)
- |> list.any(fn(item) { item })
- |> should.be_true
-
- list.repeat(False, recursion_test_cycles)
- |> list.any(fn(item) { item })
- |> should.be_false
-
[1, 2, 3]
|> list.any(fn(x) {
case x {
@@ -367,6 +457,10 @@ pub fn any_test() {
}
}
})
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.any(fn(x) { x == recursion_test_cycles })
}
pub fn zip_test() {
@@ -384,6 +478,10 @@ pub fn zip_test() {
list.zip([5, 6, 7], [1, 2])
|> should.equal([#(5, 1), #(6, 2)])
+
+ // TCO test
+ let recursion_test_cycles_list = list.range(0, recursion_test_cycles)
+ list.zip(recursion_test_cycles_list, recursion_test_cycles_list)
}
pub fn strict_zip_test() {
@@ -409,6 +507,11 @@ pub fn unzip_test() {
list.unzip([])
|> should.equal(#([], []))
+
+ // TCO test
+ let recursion_test_cycles_list = list.range(0, recursion_test_cycles)
+ list.zip(recursion_test_cycles_list, recursion_test_cycles_list)
+ |> list.unzip()
}
pub fn intersperse_test() {
@@ -417,6 +520,10 @@ pub fn intersperse_test() {
list.intersperse([], 2)
|> should.equal([])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.intersperse(0)
}
pub fn at_test() {
@@ -445,6 +552,10 @@ pub fn unique_test() {
list.unique([])
|> should.equal([])
+
+ // TCO test
+ list.range(0, recursion_test_cycles / 100)
+ |> list.unique()
}
pub fn sort_test() {
@@ -475,9 +586,12 @@ pub fn sort_test() {
[4.1, 3.1, 6.1, 5.1, 4.1]
|> list.sort(float.compare)
|> should.equal([3.1, 4.1, 4.1, 5.1, 6.1])
-}
-pub fn sort_stability_test() {
+ []
+ |> list.sort(int.compare)
+ |> should.equal([])
+
+ // Stability tests
let sorted_cards = [
#(1, 1),
#(2, 1),
@@ -518,6 +632,11 @@ pub fn sort_stability_test() {
|> list.sort(fn(a, b) { int.compare(a.0, b.0) })
|> list.sort(fn(a, b) { int.compare(a.1, b.1) })
|> should.equal(sorted_cards)
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.reverse
+ |> list.sort(int.compare)
}
pub fn index_map_test() {
@@ -552,8 +671,8 @@ pub fn range_test() {
list.range(1, -5)
|> should.equal([1, 0, -1, -2, -3, -4, -5])
- // This should not overflow the stack
- list.range(1, 100_000)
+ // TCO test
+ list.range(1, recursion_test_cycles)
}
pub fn repeat_test() {
@@ -568,6 +687,9 @@ pub fn repeat_test() {
list.repeat("x", 5)
|> should.equal(["x", "x", "x", "x", "x"])
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles)
}
pub fn split_test() {
@@ -594,6 +716,10 @@ pub fn split_test() {
[0, 1, 2, 3, 4]
|> list.split(9)
|> should.equal(#([0, 1, 2, 3, 4], []))
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles + 10)
+ |> list.split(recursion_test_cycles + 1)
}
pub fn split_while_test() {
@@ -616,6 +742,10 @@ pub fn split_while_test() {
[1, 2, 3, 4, 5]
|> list.split_while(fn(x) { x <= -3 })
|> should.equal(#([], [1, 2, 3, 4, 5]))
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles + 10)
+ |> list.split_while(fn(x) { x <= recursion_test_cycles + 1 })
}
pub fn key_find_test() {
@@ -635,14 +765,21 @@ pub fn key_find_test() {
}
pub fn pop_test() {
- list.pop([1, 2, 3], fn(x) { x > 2 })
+ [1, 2, 3]
+ |> list.pop(fn(x) { x > 2 })
|> should.equal(Ok(#(3, [1, 2])))
- list.pop([1, 2, 3], fn(x) { x > 4 })
+ [1, 2, 3]
+ |> list.pop(fn(x) { x > 4 })
|> should.equal(Error(Nil))
- list.pop([], fn(_x) { True })
+ []
+ |> list.pop(fn(_x) { True })
|> should.equal(Error(Nil))
+
+ // TCO test
+ list.repeat(0, recursion_test_cycles + 10)
+ |> list.pop(fn(x) { x > recursion_test_cycles + 1 })
}
pub fn pop_map_test() {
@@ -681,12 +818,29 @@ pub fn key_set_test() {
[#(5, 0), #(4, 1)]
|> list.key_set(1, 100)
|> should.equal([#(5, 0), #(4, 1), #(1, 100)])
+
+ // TCO test
+ let recursion_test_cycles_list = list.range(0, recursion_test_cycles)
+ list.zip(recursion_test_cycles_list, recursion_test_cycles_list)
+ |> list.key_set(0, 0)
+}
+
+pub fn each_test() {
+ list.each([1, 1, 1], fn(x) { assert 1 = x })
+ |> should.equal(Nil)
+
+ // TCO test
+ list.each(list.repeat(1, recursion_test_cycles), fn(x) { assert 1 = x })
}
pub fn partition_test() {
[1, 2, 3, 4, 5, 6, 7]
|> list.partition(int.is_odd)
|> should.equal(#([1, 3, 5, 7], [2, 4, 6]))
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.partition(int.is_even)
}
pub fn permutations_test() {
@@ -710,6 +864,17 @@ pub fn permutations_test() {
["a", "b"]
|> list.permutations
|> should.equal([["a", "b"], ["b", "a"]])
+
+ // TCO test
+ case recursion_test_cycles > 2 {
+ // Permutation count:
+ // 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 = 40_320
+ // 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 = 362_800
+ True ->
+ [1, 2, 3, 4, 5, 6, 7, 8, 9]
+ |> list.permutations
+ False -> [[]]
+ }
}
pub fn window_test() {
@@ -728,6 +893,10 @@ pub fn window_test() {
[1, 2, 3, 4, 5]
|> list.window(3)
|> should.equal([[1, 2, 3], [2, 3, 4], [3, 4, 5]])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.window(2)
}
pub fn window_by_2_test() {
@@ -744,12 +913,20 @@ pub fn drop_while_test() {
[1, 2, 3, 4]
|> list.drop_while(fn(x) { x < 3 })
|> should.equal([3, 4])
+
+ // TCO test
+ list.range(0, recursion_test_cycles + 10)
+ |> list.drop_while(fn(x) { x < recursion_test_cycles + 1 })
}
pub fn take_while_test() {
[1, 2, 3, 2, 4]
|> list.take_while(fn(x) { x < 3 })
|> should.equal([1, 2])
+
+ // TCO test
+ list.range(0, recursion_test_cycles + 10)
+ |> list.take_while(fn(x) { x < recursion_test_cycles + 1 })
}
pub fn chunk_test() {
@@ -760,6 +937,10 @@ pub fn chunk_test() {
[1, 2, 2, 3, 4, 4, 6, 7, 7]
|> list.chunk(by: fn(n) { n % 2 })
|> should.equal([[1], [2, 2], [3], [4, 4, 6], [7, 7]])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.chunk(by: fn(n) { n % 2 })
}
pub fn sized_chunk_test() {
@@ -770,6 +951,10 @@ pub fn sized_chunk_test() {
[1, 2, 3, 4, 5, 6, 7, 8]
|> list.sized_chunk(into: 3)
|> should.equal([[1, 2, 3], [4, 5, 6], [7, 8]])
+
+ // TCO test
+ list.range(0, recursion_test_cycles * 3)
+ |> list.sized_chunk(into: 3)
}
pub fn reduce_test() {
@@ -807,6 +992,10 @@ pub fn scan_test() {
["Odd", "Even", "Odd"],
["Even", "Odd", "Even", "Odd"],
])
+
+ // TCO test
+ list.range(0, recursion_test_cycles)
+ |> list.scan(from: 0, with: fn(acc, i) { i + acc })
}
pub fn last_test() {
@@ -835,6 +1024,14 @@ pub fn combinations_test() {
list.combinations([1, 2, 3, 4], 3)
|> should.equal([[1, 2, 3], [1, 2, 4], [1, 3, 4], [2, 3, 4]])
+
+ // TCO test
+ case recursion_test_cycles > 2 {
+ True ->
+ list.range(1, 20)
+ |> list.combinations(20 / 2)
+ False -> []
+ }
}
pub fn combination_pairs_test() {
@@ -849,6 +1046,10 @@ pub fn combination_pairs_test() {
list.combination_pairs([1, 2, 3, 4])
|> should.equal([#(1, 2), #(1, 3), #(1, 4), #(2, 3), #(2, 4), #(3, 4)])
+
+ // TCO test
+ list.range(0, 200)
+ |> list.combination_pairs()
}
pub fn interleave_test() {
diff --git a/test/gleam/string_test.gleam b/test/gleam/string_test.gleam
index e1c4799..13069f1 100644
--- a/test/gleam/string_test.gleam
+++ b/test/gleam/string_test.gleam
@@ -4,11 +4,16 @@ import gleam/should
import gleam/string
if erlang {
- const recursion_test_cycles = 999999
+ const recursion_test_cycles = 1_000_000
}
if javascript {
- const recursion_test_cycles = 16999
+ // JavaScript engines crash when exceeding a certain stack size:
+ //
+ // - Chrome 106 and NodeJS V16, V18, and V19 crash around 10_000+
+ // - Firefox 106 crashes around 35_000+.
+ // - Safari 16 crashes around 40_000+.
+ const recursion_test_cycles = 40_000
}
pub fn length_test() {
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-27 23:18:50 +0000