diff --git a/.circleci/config.yml b/.circleci/config.yml
index 56a4af30a..cafe68b78 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1381,6 +1381,13 @@ workflows:
           binary_type: native
           # NOTE: Tests crash on nodejs 17: "Error: error:0308010C:digital envelope routines::unsupported"
           nodejs_version: '16'
+      - t_ems_ext:
+          <<: *workflow_ubuntu2004_static
+          name: t_native_test_ext_euler
+          project: euler
+          binary_type: native
+          # NOTE: Tests crash on nodejs 17: "Error: error:0308010C:digital envelope routines::unsupported"
+          nodejs_version: '16'
 
       # Windows build and tests
       - b_win: *workflow_trigger_on_tags
diff --git a/test/externalTests.sh b/test/externalTests.sh
index 846cdf515..67a5e24ad 100755
--- a/test/externalTests.sh
+++ b/test/externalTests.sh
@@ -43,3 +43,4 @@ printTask "Running external tests..."
 "$REPO_ROOT/externalTests/colony.sh" "$@"
 "$REPO_ROOT/externalTests/ens.sh" "$@"
 "$REPO_ROOT/externalTests/trident.sh" "$@"
+"$REPO_ROOT/externalTests/euler.sh" "$@"
diff --git a/test/externalTests/common.sh b/test/externalTests/common.sh
index 91068d07d..37bd8d74d 100644
--- a/test/externalTests/common.sh
+++ b/test/externalTests/common.sh
@@ -227,6 +227,26 @@ function force_hardhat_compiler_binary
     hardhat_solc_build_subtask "$SOLCVERSION_SHORT" "$SOLCVERSION" "$binary_type" "$solc_path" "$language" >> "$config_file"
 }
 
+function force_hardhat_unlimited_contract_size
+{
+    local config_file="$1"
+    local config_var_name="$2"
+
+    printLog "Configuring Hardhat..."
+    echo "-------------------------------------"
+    echo "Allow unlimited contract size: true"
+    echo "-------------------------------------"
+
+    if [[ $config_file == *\.js ]]; then
+        [[ $config_var_name == "" ]] || assertFail
+        echo "module.exports.networks.hardhat.allowUnlimitedContractSize = true" >> "$config_file"
+    else
+        [[ $config_file == *\.ts ]] || assertFail
+        [[ $config_var_name != "" ]] || assertFail
+        echo "${config_var_name}.networks!.hardhat!.allowUnlimitedContractSize = true" >> "$config_file"
+    fi
+}
+
 function force_hardhat_compiler_settings
 {
     local config_file="$1"
diff --git a/test/externalTests/ens.sh b/test/externalTests/ens.sh
index 2a539f8fc..d3fcb0b13 100755
--- a/test/externalTests/ens.sh
+++ b/test/externalTests/ens.sh
@@ -56,7 +56,6 @@ function ens_test
 
     setup_solc "$DIR" "$BINARY_TYPE" "$BINARY_PATH"
     download_project "$repo" "$ref_type" "$ref" "$DIR"
-    [[ $BINARY_TYPE == native ]] && replace_global_solc "$BINARY_PATH"
 
     neutralize_package_lock
     neutralize_package_json_hooks
diff --git a/test/externalTests/euler.sh b/test/externalTests/euler.sh
new file mode 100755
index 000000000..485d7ae56
--- /dev/null
+++ b/test/externalTests/euler.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+
+# ------------------------------------------------------------------------------
+# This file is part of solidity.
+#
+# solidity is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# solidity is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with solidity.  If not, see <http://www.gnu.org/licenses/>
+#
+# (c) 2022 solidity contributors.
+#------------------------------------------------------------------------------
+
+set -e
+
+source scripts/common.sh
+source test/externalTests/common.sh
+
+verify_input "$@"
+BINARY_TYPE="$1"
+BINARY_PATH="$2"
+SELECTED_PRESETS="$3"
+
+function compile_fn { npm run compile; }
+function test_fn { npx --no hardhat --no-compile test; }
+
+function euler_test
+{
+    local repo="https://github.com/euler-xyz/euler-contracts"
+    local ref_type=branch
+    local ref="master"
+    local config_file="hardhat.config.js"
+
+    local compile_only_presets=()
+    local settings_presets=(
+        "${compile_only_presets[@]}"
+        #ir-no-optimize           # Compilation fails with "YulException: Variable var_utilisation_307 is 6 slot(s) too deep inside the stack."
+        #ir-optimize-evm-only     # Compilation fails with "YulException: Variable var_utilisation_307 is 6 slot(s) too deep inside the stack."
+        #ir-optimize-evm+yul      # Compilation fails with "YulException: Variable var_status_mpos is 3 too deep in the stack"
+        legacy-optimize-evm-only
+        legacy-optimize-evm+yul
+        legacy-no-optimize
+    )
+
+    [[ $SELECTED_PRESETS != "" ]] || SELECTED_PRESETS=$(circleci_select_steps_multiarg "${settings_presets[@]}")
+    print_presets_or_exit "$SELECTED_PRESETS"
+
+    setup_solc "$DIR" "$BINARY_TYPE" "$BINARY_PATH"
+    download_project "$repo" "$ref_type" "$ref" "$DIR"
+
+    neutralize_package_lock
+    neutralize_package_json_hooks
+    force_hardhat_compiler_binary "$config_file" "$BINARY_TYPE" "$BINARY_PATH"
+    force_hardhat_compiler_settings "$config_file" "$(first_word "$SELECTED_PRESETS")"
+    force_hardhat_unlimited_contract_size "$config_file"
+    npm install
+
+    replace_version_pragmas
+    neutralize_packaged_contracts
+
+    for preset in $SELECTED_PRESETS; do
+        hardhat_run_test "$config_file" "$preset" "${compile_only_presets[*]}" compile_fn test_fn
+    done
+}
+
+external_test Euler euler_test