Elixir 1.17 support in CI (#369)

whatyouhide · Jun 24, 2024 · 2714ef6 · 2714ef6
1 parent d62eff9
commit 2714ef6
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diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -14,7 +14,7 @@ jobs:
   lint:
     name: Lint
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: true
@@ -26,12 +26,12 @@ jobs:
       - name: Install OTP and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: "26.2"
-          elixir-version: "1.16"
+          otp-version: "27.0"
+          elixir-version: "1.17.1"
 
       - name: Cache dependencies
         id: cache-deps
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             deps
@@ -43,7 +43,7 @@ jobs:
 
       - name: Install and compile dependencies
         if: steps.cache-deps.outputs.cache-hit != 'true'
-        run: mix do deps.get + deps.compile
+        run: mix deps.get --check-locked
 
       - name: Check formatting
         run: mix format --check-formatted
@@ -56,7 +56,7 @@ jobs:
         run: mix compile --warnings-as-errors --force
 
       - name: Cache Dialyzer's PLT
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: cache-plt
         with:
           path: priv/plts
@@ -75,41 +75,30 @@ jobs:
 
   test:
     name: >-
-      Test (Elixir ${{ matrix.elixir }},
-      OTP ${{ matrix.otp }},
+      Test (Elixir ${{ matrix.runtime.elixir }},
+      OTP ${{ matrix.runtime.otp }} —
       C* ${{ matrix.server_versions.cassandra }},
-      Scylla ${{ matrix.server_versions.scylla }} (coverage: ${{ matrix.coverage }})
+      Scylla ${{ matrix.server_versions.scylla }})
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false
 
       matrix:
-        otp:
-          - "25.3"
-        elixir:
-          - "1.16"
-        server_versions:
-          - cassandra: "3"
-            scylla: "4.6.3"
-
-        include:
-          - otp: "26.2"
-            elixir: "1.16"
-            coverage: true
-            server_versions:
-              cassandra: "4.1"
-              scylla: "5.2"
-
-          # Oldest-supported Elixir and Erlang versions.
+        runtime:
+          # Oldest supported versions.
           - otp: "25.3"
             elixir: "1.15.4"
-            coverage: false
-            server_versions:
-              cassandra: "4.1"
-              scylla: "5.2"
+          # Latest supported versions.
+          - otp: "27.0"
+            elixir: "1.17.1"
 
+        server_versions:
+          - cassandra: "3"
+            scylla: "4.6.3"
+          - cassandra: "4.1"
+            scylla: "5.2"
 
     env:
       CASSANDRA_VERSION: ${{ matrix.server_versions.cassandra }}
@@ -128,32 +117,27 @@ jobs:
       - name: Install OTP and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{ matrix.otp }}
-          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.runtime.otp }}
+          elixir-version: ${{ matrix.runtime.elixir }}
 
       - name: Cache dependencies
         id: cache-deps
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             deps
             _build
           key: |
-            ${{ runner.os }}-mix-otp${{ matrix.otp }}-elixir${{ matrix.elixir }}-${{ hashFiles('**/mix.lock') }}
+            ${{ runner.os }}-mix-otp${{ matrix.runtime.otp }}-elixir${{ matrix.runtime.elixir }}-${{ hashFiles('**/mix.lock') }}
           restore-keys:
-            ${{ runner.os }}-mix-otp${{ matrix.otp }}-elixir${{ matrix.elixir }}-
+            ${{ runner.os }}-mix-otp${{ matrix.runtime.otp }}-elixir${{ matrix.runtime.elixir }}-
 
       - name: Install and compile dependencies
         if: steps.cache-deps.outputs.cache-hit != 'true'
-        run: mix do deps.get --only test + deps.compile
+        run: mix deps.get --only test
 
       # TODO: eventually figure out why we can't run encryption tests on CI.
-      - name: Run tests for Cassandra and Scylla (with coverage)
-        if: ${{ matrix.coverage }}
-        run: mix test.ci_with_coverage --exclude encryption --exclude toxiproxy
-
       - name: Run tests for Cassandra and Scylla (without coverage)
-        if: ${{ !matrix.coverage }}
         run: mix test.all --exclude encryption --exclude toxiproxy
 
       - name: Dump Docker logs on failure

diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   cassandra:
     build:

diff --git a/lib/xandra/protocol/v3.ex b/lib/xandra/protocol/v3.ex
@@ -249,7 +249,7 @@ defmodule Xandra.Protocol.V3 do
     <<value + @unix_epoch_days::32>>
   end
 
-  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1) do
+  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1)//1 do
     <<value + @unix_epoch_days::32>>
   end
 

diff --git a/lib/xandra/protocol/v4.ex b/lib/xandra/protocol/v4.ex
@@ -282,7 +282,7 @@ defmodule Xandra.Protocol.V4 do
     <<value + @unix_epoch_days::32>>
   end
 
-  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1) do
+  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1)//1 do
     <<value + @unix_epoch_days::32>>
   end
 

diff --git a/lib/xandra/protocol/v5.ex b/lib/xandra/protocol/v5.ex
@@ -286,7 +286,7 @@ defmodule Xandra.Protocol.V5 do
     <<value + @unix_epoch_days::32>>
   end
 
-  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1) do
+  defp encode_value(:date, value) when value in -@unix_epoch_days..(@unix_epoch_days - 1)//1 do
     <<value + @unix_epoch_days::32>>
   end
 

diff --git a/mix.exs b/mix.exs
@@ -160,7 +160,7 @@ defmodule Xandra.Mixfile do
       {:ex_doc, "~> 0.30", only: :dev},
       {:excoveralls, "~> 0.18", only: :test},
       {:mox, "~> 1.0", only: :test},
-      {:stream_data, "~> 0.6.0", only: [:dev, :test]},
+      {:stream_data, "~> 1.0", only: [:dev, :test]},
       {:nimble_lz4, "~> 0.1.3", only: [:dev, :test]},
       {:toxiproxy_ex, github: "whatyouhide/toxiproxy_ex", only: :test}
     ]

diff --git a/mix.lock b/mix.lock
@@ -1,27 +1,27 @@
 %{
-  "castore": {:hex, :castore, "1.0.4", "ff4d0fb2e6411c0479b1d965a814ea6d00e51eb2f58697446e9c41a97d940b28", [:mix], [], "hexpm", "9418c1b8144e11656f0be99943db4caf04612e3eaecefb5dae9a2a87565584f8"},
+  "castore": {:hex, :castore, "1.0.7", "b651241514e5f6956028147fe6637f7ac13802537e895a724f90bf3e36ddd1dd", [:mix], [], "hexpm", "da7785a4b0d2a021cd1292a60875a784b6caef71e76bf4917bdee1f390455cf5"},
   "decimal": {:hex, :decimal, "2.1.1", "5611dca5d4b2c3dd497dec8f68751f1f1a54755e8ed2a966c2633cf885973ad6", [:mix], [], "hexpm", "53cfe5f497ed0e7771ae1a475575603d77425099ba5faef9394932b35020ffcc"},
-  "dialyxir": {:hex, :dialyxir, "1.4.1", "a22ed1e7bd3a3e3f197b68d806ef66acb61ee8f57b3ac85fc5d57354c5482a93", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "84b795d6d7796297cca5a3118444b80c7d94f7ce247d49886e7c291e1ae49801"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.37", "2ad73550e27c8946648b06905a57e4d454e4d7229c2dafa72a0348c99d8be5f7", [:mix], [], "hexpm", "6b19783f2802f039806f375610faa22da130b8edc21209d0bff47918bb48360e"},
+  "dialyxir": {:hex, :dialyxir, "1.4.3", "edd0124f358f0b9e95bfe53a9fcf806d615d8f838e2202a9f430d59566b6b53b", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "bf2cfb75cd5c5006bec30141b131663299c661a864ec7fbbc72dfa557487a986"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.30.9", "d691453495c47434c0f2052b08dd91cc32bc4e1a218f86884563448ee2502dd2", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "d7aaaf21e95dc5cddabf89063327e96867d00013963eadf2c6ad135506a8bc10"},
-  "excoveralls": {:hex, :excoveralls, "0.18.0", "b92497e69465dc51bc37a6422226ee690ab437e4c06877e836f1c18daeb35da9", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "1109bb911f3cb583401760be49c02cbbd16aed66ea9509fc5479335d284da60b"},
-  "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
+  "ex_doc": {:hex, :ex_doc, "0.34.0", "ab95e0775db3df71d30cf8d78728dd9261c355c81382bcd4cefdc74610bef13e", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "60734fb4c1353f270c3286df4a0d51e65a2c1d9fba66af3940847cc65a8066d7"},
+  "excoveralls": {:hex, :excoveralls, "0.18.1", "a6f547570c6b24ec13f122a5634833a063aec49218f6fff27de9df693a15588c", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "d65f79db146bb20399f23046015974de0079668b9abb2f5aac074d078da60b8d"},
+  "hpax": {:hex, :hpax, "0.2.0", "5a58219adcb75977b2edce5eb22051de9362f08236220c9e859a47111c194ff5", [:mix], [], "hexpm", "bea06558cdae85bed075e6c036993d43cd54d447f76d8190a8db0dc5893fa2f1"},
   "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
-  "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
-  "makeup_erlang": {:hex, :makeup_erlang, "0.1.2", "ad87296a092a46e03b7e9b0be7631ddcf64c790fa68a9ef5323b6cbb36affc72", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f3f5a1ca93ce6e092d92b6d9c049bcda58a3b617a8d888f8e7231c85630e8108"},
+  "makeup": {:hex, :makeup, "1.1.2", "9ba8837913bdf757787e71c1581c21f9d2455f4dd04cfca785c70bbfff1a76a3", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cce1566b81fbcbd21eca8ffe808f33b221f9eee2cbc7a1706fc3da9ff18e6cac"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
+  "makeup_erlang": {:hex, :makeup_erlang, "1.0.0", "6f0eff9c9c489f26b69b61440bf1b238d95badae49adac77973cbacae87e3c2e", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "ea7a9307de9d1548d2a72d299058d1fd2339e3d398560a0e46c27dab4891e4d2"},
   "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
-  "mint": {:hex, :mint, "1.5.1", "8db5239e56738552d85af398798c80648db0e90f343c8469f6c6d8898944fb6f", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "4a63e1e76a7c3956abd2c72f370a0d0aecddc3976dea5c27eccbecfa5e7d5b1e"},
-  "mox": {:hex, :mox, "1.0.2", "dc2057289ac478b35760ba74165b4b3f402f68803dd5aecd3bfd19c183815d64", [:mix], [], "hexpm", "f9864921b3aaf763c8741b5b8e6f908f44566f1e427b2630e89e9a73b981fef2"},
+  "mint": {:hex, :mint, "1.6.1", "065e8a5bc9bbd46a41099dfea3e0656436c5cbcb6e741c80bd2bad5cd872446f", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "4fc518dcc191d02f433393a72a7ba3f6f94b101d094cb6bf532ea54c89423780"},
+  "mox": {:hex, :mox, "1.1.0", "0f5e399649ce9ab7602f72e718305c0f9cdc351190f72844599545e4996af73c", [:mix], [], "hexpm", "d44474c50be02d5b72131070281a5d3895c0e7a95c780e90bc0cfe712f633a13"},
   "nimble_lz4": {:hex, :nimble_lz4, "0.1.4", "22b9fa4163e8057a10e6a2238285c1ed8137ea2e2659b8166d7354c0f2957312", [:mix], [{:rustler, "~> 0.29.0", [hex: :rustler, repo: "hexpm", optional: false]}, {:rustler_precompiled, "~> 0.6.2", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "1ae42465181aca22924972682fa52e10e46ecc6541d9df59af6ff3ada00fc592"},
-  "nimble_options": {:hex, :nimble_options, "1.0.2", "92098a74df0072ff37d0c12ace58574d26880e522c22801437151a159392270e", [:mix], [], "hexpm", "fd12a8db2021036ce12a309f26f564ec367373265b53e25403f0ee697380f1b8"},
-  "nimble_parsec": {:hex, :nimble_parsec, "1.3.1", "2c54013ecf170e249e9291ed0a62e5832f70a476c61da16f6aac6dca0189f2af", [:mix], [], "hexpm", "2682e3c0b2eb58d90c6375fc0cc30bc7be06f365bf72608804fb9cffa5e1b167"},
+  "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
   "rustler": {:hex, :rustler, "0.29.1", "880f20ae3027bd7945def6cea767f5257bc926f33ff50c0d5d5a5315883c084d", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "109497d701861bfcd26eb8f5801fe327a8eef304f56a5b63ef61151ff44ac9b6"},
   "rustler_precompiled": {:hex, :rustler_precompiled, "0.6.3", "f838d94bc35e1844973ee7266127b156fdc962e9e8b7ff666c8fb4fed7964d23", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "e18ecca3669a7454b3a2be75ae6c3ef01d550bc9a8cf5fbddcfff843b881d7c6"},
-  "stream_data": {:hex, :stream_data, "0.6.0", "e87a9a79d7ec23d10ff83eb025141ef4915eeb09d4491f79e52f2562b73e5f47", [:mix], [], "hexpm", "b92b5031b650ca480ced047578f1d57ea6dd563f5b57464ad274718c9c29501c"},
+  "stream_data": {:hex, :stream_data, "1.1.1", "fd515ca95619cca83ba08b20f5e814aaf1e5ebff114659dc9731f966c9226246", [:mix], [], "hexpm", "45d0cd46bd06738463fd53f22b70042dbb58c384bb99ef4e7576e7bb7d3b8c8c"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
   "tesla": {:hex, :tesla, "1.7.0", "a62dda2f80d4f8a925eb7b8c5b78c461e0eb996672719fe1a63b26321a5f8b4e", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.13", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:msgpax, "~> 2.3", [hex: :msgpax, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "2e64f01ebfdb026209b47bc651a0e65203fcff4ae79c11efb73c4852b00dc313"},
   "toml": {:hex, :toml, "0.7.0", "fbcd773caa937d0c7a02c301a1feea25612720ac3fa1ccb8bfd9d30d822911de", [:mix], [], "hexpm", "0690246a2478c1defd100b0c9b89b4ea280a22be9a7b313a8a058a2408a2fa70"},
-  "toxiproxy_ex": {:git, "https://github.com/whatyouhide/toxiproxy_ex.git", "f77d7371bd0d58c3c6206589fba8c419e331113e", []},
+  "toxiproxy_ex": {:git, "https://github.com/whatyouhide/toxiproxy_ex.git", "b4036aabdd63793cf74cedf175de1594029e2f56", []},
 }
diff --git a/test/xandra_test.exs b/test/xandra_test.exs
@@ -196,10 +196,14 @@ defmodule XandraTest do
 
   describe "execute/3,4" do
     test "supports the :timeout option", %{conn: conn} do
-      assert {:error, %ConnectionError{} = error} =
-               Xandra.execute(conn, "SELECT * FROM system.local", [], timeout: 0)
-
-      assert error.reason == :timeout
+      # Do this a few times to make it more reliable and make the timeout pop up.
+      for _ <- 1..5 do
+        case Xandra.execute(conn, "SELECT * FROM system.local", [], timeout: 0) do
+          {:error, %ConnectionError{} = error} -> assert error.reason == :timeout
+          {:ok, _} -> :yeah_alright_its_flaky
+          other -> flunk("Unexpected return error: #{inspect(other)}")
+        end
+      end
     end
 
     # It's an annoyance to set up support for UDFs in Scylla in CI.