diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9ed0fda..a9486b1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
-        postgresql-version: [16, 15, 14, 13, 12]
+        postgresql-version: [17, 16, 15, 14, 13, 12]
 
     container:
       image: python:${{ matrix.python-version }}
@@ -31,6 +31,7 @@ jobs:
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
+          --mount type=bind,source="test/postgres_server/init_scripts",target=/docker-entrypoint-initdb.d \
 
     steps:
       - uses: actions/checkout@v4
@@ -39,109 +40,9 @@ jobs:
           git config --global --add safe.directory "$GITHUB_WORKSPACE"
           python -m pip install --no-cache-dir --upgrade pip
           pip install --no-cache-dir --root-user-action ignore pytest pytest-mock pytest-benchmark pytz .
-      - name: Set up Postgresql
-        run: |
-          apt-get update
-          apt-get install --yes --no-install-recommends postgresql-client
-          psql -c "CREATE EXTENSION hstore;"
-          psql -c "SELECT pg_reload_conf()"
-      - name: Test with pytest
-        run: |
-          python -m pytest -x -v -W error --ignore=test/dbapi/auth/ --ignore=test/legacy/auth/ --ignore=test/native/auth/ test --ignore=test/test_readme.py
-
-  auth-test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.11"]
-        postgresql-version: ["16", "12"]
-        auth-type: [md5, gss, password, scram-sha-256]
-
-    container:
-      image: python:${{ matrix.python-version }}
-      env:
-        PGHOST: postgres
-        PGPASSWORD: postgres
-        PGUSER: postgres
-        PIP_ROOT_USER_ACTION: ignore
-
-    services:
-      postgres:
-        image: postgres:${{ matrix.postgresql-version }}
-        env:
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_HOST_AUTH_METHOD: ${{ matrix.auth-type }}
-          POSTGRES_INITDB_ARGS: "${{ matrix.auth-type == 'scram-sha-256' && '--auth-host=scram-sha-256' || '' }}"
-        # Set health checks to wait until postgres has started
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install dependencies
-        run: |
-          git config --global --add safe.directory "$GITHUB_WORKSPACE"
-          python -m pip install --no-cache-dir --upgrade pip
-          pip install --no-cache-dir pytest pytest-mock pytest-benchmark pytz .
       - name: Test with pytest
         run: |
-          python -m pytest -x -v -W error test/dbapi/auth/test_${{ matrix.auth-type }}.py test/native/auth/test_${{ matrix.auth-type }}.py test/legacy/auth/test_${{ matrix.auth-type }}.py
-
-  ssl-test:
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        auth-type: [md5, scram-sha-256]
-
-    services:
-      postgres:
-        image: postgres
-        env:
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_HOST_AUTH_METHOD: ${{ matrix.auth-type }}
-          POSTGRES_INITDB_ARGS: "${{ matrix.auth-type == 'scram-sha-256' && '--auth-host=scram-sha-256' || '' }}"
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-        ports:
-          - 5432:5432
-
-    steps:
-      - name: Configure Postgres
-        env:
-          PGPASSWORD: postgres
-          PGUSER: postgres
-          PGHOST: localhost
-        run: |
-          sudo apt update
-          sudo apt install --yes --no-install-recommends postgresql-client
-          psql -c "ALTER SYSTEM SET ssl = on;"
-          psql -c "ALTER SYSTEM SET ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'"
-          psql -c "ALTER SYSTEM SET ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'"
-          psql -c "SELECT pg_reload_conf()"
-
-      - name: Check out repository code
-        uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.11"
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install pytest pytest-mock pytest-benchmark pytz .
-      - name: SSL Test
-        env:
-          PGPASSWORD: postgres
-          USER: postgres
-        run: |
-          python -m pytest -x -v -W error test/dbapi/auth/test_${{ matrix.auth-type}}_ssl.py test/native/auth/test_${{ matrix.auth-type}}_ssl.py test/legacy/auth/test_${{ matrix.auth-type}}_ssl.py
+          python -m pytest -x -v -W error test --ignore=test/test_readme.py
 
   static-test:
     runs-on: ubuntu-latest
diff --git a/postgres_test_server/init-scripts/pg8000-init.sh b/postgres_test_server/init-scripts/pg8000-init.sh
deleted file mode 100644
index 5844045..0000000
--- a/postgres_test_server/init-scripts/pg8000-init.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-
-cat > /var/lib/postgresql/data/pg_hba.conf  <<EOF
-host    pg8000_md5           all        0.0.0.0/0            md5
-host    pg8000_gss           all        0.0.0.0/0            gss
-host    pg8000_password      all        0.0.0.0/0            password
-host    pg8000_scram_sha_256 all        0.0.0.0/0            scram-sha-256
-host    all                  all        0.0.0.0/0            trust
-EOF
-
-
-# Generate server key and certificate
-openssl req -new -newkey rsa:2048 -days 365 -nodes -x509 -keyout /var/lib/postgresql/data/server.key -out /var/lib/postgresql/data/server.crt -subj "/CN=localhost"
-
-# Secure the server.key file
-chmod 600 /var/lib/postgresql/data/server.key
-
-# Ensure the right owner and permissions for PostgreSQL to use the certificates
-chown postgres:postgres /var/lib/postgresql/data/server.crt /var/lib/postgresql/data/server.key
-
-# Enable SSL, set proper password encryption and enable logging of all statements
-cat >> /var/lib/postgresql/data/postgresql.conf <<EOF
-password_encryption = 'scram-sha-256'
-
-ssl = on
-ssl_cert_file = '/var/lib/postgresql/data/server.crt'
-ssl_key_file = '/var/lib/postgresql/data/server.key'
-
-log_statement = all
-EOF
-
-# Create a user and database with the same name as the "outside" user,
-#in order for code in readme.md tests to work
-
-createuser "${OUTSIDE_USER}"
-createdb "${OUTSIDE_USER}"
diff --git a/postgres_test_server/init-scripts/pg8000-init.sql b/postgres_test_server/init-scripts/pg8000-init.sql
deleted file mode 100644
index 332b2ad..0000000
--- a/postgres_test_server/init-scripts/pg8000-init.sql
+++ /dev/null
@@ -1,3 +0,0 @@
-CREATE EXTENSION hstore;
-
-CREATE DATABASE pg8000_gss;
diff --git a/postgres_test_server/run-test-server.sh b/postgres_test_server/run-test-server.sh
deleted file mode 100755
index ec9750a..0000000
--- a/postgres_test_server/run-test-server.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/bash
-
-# This script will fire up a local postgresql test server using docker
-
-base_path=$(dirname "$0")
-
-docker run \
-       --interactive \
-       --tty \
-       --rm \
-       --publish 127.0.0.1:5432:5432 \
-       --env POSTGRES_PASSWORD=pw \
-       --env OUTSIDE_USER="$USER" \
-       --mount type=bind,source="$base_path/init-scripts",target=/docker-entrypoint-initdb.d \
-       --name pg8000-test-server \
-       postgres:latest "$@"
diff --git a/test/native/conftest.py b/test/native/conftest.py
index ae3db2f..39159ca 100644
--- a/test/native/conftest.py
+++ b/test/native/conftest.py
@@ -1,3 +1,4 @@
+from locale import LC_MONETARY, localeconv, setlocale
 from os import environ
 
 import pytest
@@ -49,3 +50,11 @@ def pg_version(con):
     version = retval[0][0]
     major = parse_server_version(version)
     return major
+
+
+@pytest.fixture
+def currency(con):
+    retval = con.run("show lc_monetary")
+    lc_monetary = retval[0][0]
+    setlocale(LC_MONETARY, lc_monetary)
+    return localeconv()["currency_symbol"]
diff --git a/test/native/test_typeconversion.py b/test/native/test_typeconversion.py
index 1208013..edd1426 100644
--- a/test/native/test_typeconversion.py
+++ b/test/native/test_typeconversion.py
@@ -12,7 +12,6 @@
 from enum import Enum
 from ipaddress import IPv4Address, IPv4Network
 from json import dumps
-from locale import LC_ALL, localeconv, setlocale
 from uuid import UUID
 
 import pytest
@@ -490,13 +489,6 @@ def test_float8_array_out(con):
     assert f3 == [[[1, 2], [3, 4]], [[None, 6], [7, 8]]]
 
 
-# Find the currency string
-setlocale(LC_ALL, "")
-CURRENCY = localeconv()["currency_symbol"]
-if CURRENCY == "":
-    CURRENCY = "$"
-
-
 @pytest.mark.parametrize(
     "test_input,oid",
     [
@@ -518,7 +510,7 @@ def test_float8_array_out(con):
         [[7000000000, 2, 3], BIGINT_ARRAY],  # int8[]
         [[1.1, 2.2, 3.3], FLOAT_ARRAY],  # float8[]
         [[Decimal("1.1"), None, Decimal("3.3")], NUMERIC_ARRAY],  # numeric[]
-        [[f"{CURRENCY}1.10", None, f"{CURRENCY}3.30"], MONEY_ARRAY],  # money[]
+        [["{currency}1.10", None, "{currency}3.30"], MONEY_ARRAY],  # money[]
         [[UUID("911460f2-1f43-fea2-3e2c-e01fd5b5069d")], UUID_ARRAY],  # uuid[]
         [  # json[]
             [{"name": "Apollo 11 Cave", "zebra": True, "age": 26.003}],
@@ -535,8 +527,8 @@ def test_float8_array_out(con):
         [True, BOOLEAN],  # bool
         [None, BOOLEAN],  # null
         [Decimal("1.1"), NUMERIC],  # numeric
-        [f"{CURRENCY}1.10", MONEY],  # money
-        [f"-{CURRENCY}1.10", MONEY],  # money
+        ["{currency}1.10", MONEY],  # money
+        ["-{currency}1.10", MONEY],  # money
         [50000000000000, BIGINT],  # int8
         [UUID("911460f2-1f43-fea2-3e2c-e01fd5b5069d"), UUID_TYPE],  # uuid
         [IPv4Network("192.168.0.0/28"), INET],  # inet
@@ -548,9 +540,17 @@ def test_float8_array_out(con):
         [{"name": "Apollo 11 Cave", "zebra": True, "age": 26.003}, JSONB],  # jsonb
     ],
 )
-def test_roundtrip_oid(con, test_input, oid):
-    retval = con.run("SELECT :v", v=test_input, types={"v": oid})
-    assert retval[0][0] == test_input
+def test_roundtrip_oid(currency, con, test_input, oid):
+    def fill_currency(s):
+        return s.format(currency=currency) if isinstance(s, str) else s
+
+    if isinstance(test_input, list):
+        v = [fill_currency(k) for k in test_input]
+    else:
+        v = fill_currency(test_input)
+
+    retval = con.run("SELECT :v", v=v, types={"v": oid})
+    assert retval[0][0] == v
 
     assert oid == con.columns[0]["type_oid"]