test: add integration tests against Postgres.js to ExUnit test suite

.github/workflows/elixir.yml

@@ -127,6 +127,54 @@ jobs:
       - name: Run tests
         run: mix test
 
+  integration:
+    name: Run integration tests
+    runs-on: u22-arm-runner
+    needs: [deps]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Elixir
+        id: beam
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: '25.3.2.7'
+          elixir-version: '1.14.5'
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 'latest'
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@v1
+        with:
+          toolchain: stable
+      - name: Cache Mix
+        uses: actions/cache@v4
+        with:
+          path: deps
+          key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}
+      - name: Cache native
+        uses: actions/cache@v4
+        with:
+          path: |
+            _build/${{ env.MIX_ENV }}/lib/supavisor/native
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+          key: ${{ runner.os }}-build-native-${{ hashFiles(format('{0}{1}', github.workspace, '/native/**/Cargo.lock')) }}
+          restore-keys: |
+            ${{ runner.os }}-build-native-
+      - name: Compile deps
+        run: mix deps.compile
+      - name: Compile
+        run: mix compile
+      - name: Set up Postgres
+        run: docker-compose -f ./docker-compose.db.yml up -d
+      - name: Start epmd
+        run: epmd -daemon
+      - name: Run tests
+        run: mix test --only integration --trace
+
   dialyzer:
     name: Dialyze
     runs-on: u22-arm-runner

config/test.exs

@@ -46,6 +46,8 @@ config :supavisor, Supavisor.Vault,
     }
   ]
 
+config :logger, level: :error
+
 # Print only warnings and errors during test
 config :logger, :console,
   level: :error,

test/integration/external_test.exs

@@ -0,0 +1,86 @@
+defmodule Integration.ExternalTest do
+  use ExUnit.Case, async: false
+
+  @moduletag integration: true
+
+  describe "Node" do
+    @describetag runtime: "node"
+
+    setup ctx do
+      tool = get_tool("yarn") || raise "No Yarn"
+
+      external_id = Enum.join([ctx.runtime, ctx.library, ctx.mode], "_")
+
+      # Ensure that there are no leftovers
+      _ = Supavisor.Tenants.delete_tenant_by_external_id(external_id)
+
+      _ = Supavisor.Repo.query("DROP DATABASE IF EXISTS #{external_id}")
+      assert {:ok, _} = Supavisor.Repo.query("CREATE DATABASE #{external_id}")
+
+      assert {:ok, tenant} =
+               Supavisor.Tenants.create_tenant(%{
+                 default_parameter_status: %{},
+                 db_host: "localhost",
+                 db_port: 6432,
+                 db_database: external_id,
+                 auth_query: "SELECT rolname, rolpassword FROM pg_authid WHERE rolname=$1;",
+                 external_id: external_id,
+                 users: [
+                   %{
+                     "pool_size" => 3,
+                     "db_user" => "postgres",
+                     "db_password" => "postgres",
+                     "is_manager" => true,
+                     "mode_type" => "session"
+                   }
+                 ]
+               })
+
+      {:ok, tool: tool, user: "postgres.#{external_id}", db: tenant.db_database}
+    end
+
+    @tag library: "postgresjs", mode: "session"
+    test "Postgres.js session", ctx do
+      env = [
+        {"NODE_OPTIONS", "--trace-uncaught"},
+        {"PGMODE", ctx.mode},
+        {"PGDATABASE", ctx.db},
+        {"PGHOST", "localhost"},
+        {"PGPORT", to_string(Application.fetch_env!(:supavisor, :proxy_port_session))},
+        {"PGUSER", ctx.user},
+        {"PGPASS", "postgres"}
+      ]
+
+      # require IEx; IEx.pry
+
+      assert {_, 0} =
+               System.cmd(ctx.tool, ~w[run test:postgres],
+                 env: env,
+                 cd: Path.join(__DIR__, "js")
+               )
+    end
+
+    @tag library: "postgresjs", mode: "transaction"
+    test "Postgres.js transaction", ctx do
+      env = [
+        {"NODE_OPTIONS", "--trace-uncaught"},
+        {"PGMODE", ctx.mode},
+        {"PGDATABASE", ctx.db},
+        {"PGHOST", "localhost"},
+        {"PGPORT", to_string(Application.fetch_env!(:supavisor, :proxy_port_transaction))},
+        {"PGUSER", ctx.user},
+        {"PGPASS", "postgres"}
+      ]
+
+      # require IEx; IEx.pry
+
+      assert {_, 0} =
+               System.cmd(ctx.tool, ~w[run test:postgres],
+                 env: env,
+                 cd: Path.join(__DIR__, "js")
+               )
+    end
+  end
+
+  defp get_tool(name), do: System.find_executable(name)
+end