Remove networks on compose down

test/compose.test.js

@@ -2,8 +2,44 @@ import test from 'brittle'
 import {
   parseComposeFile,
   validateComposeFile,
+  removeComposeStack,
 } from '../server/utils/composeManager.js'
 
+/**
+ * Minimal dockerode-shaped mock for removeComposeStack.
+ * @param {{ containers?: object[], networks?: object[] }} seed
+ */
+function mockDocker(seed = {}) {
+  const containers = [...(seed.containers || [])]
+  const networks = [...(seed.networks || [])]
+  const removedNetworks = []
+  const removedContainers = []
+
+  return {
+    removedNetworks,
+    removedContainers,
+    listContainers: async () => containers,
+    listNetworks: async () => networks,
+    getContainer: (id) => ({
+      stop: async () => {},
+      remove: async () => {
+        removedContainers.push(id)
+        const i = containers.findIndex((c) => c.Id === id)
+        if (i >= 0) containers.splice(i, 1)
+      },
+    }),
+    getNetwork: (id) => ({
+      remove: async () => {
+        const n = networks.find((x) => x.Id === id)
+        if (!n) throw new Error(`network ${id} not found`)
+        removedNetworks.push({ id, name: n.Name })
+        const i = networks.findIndex((x) => x.Id === id)
+        if (i >= 0) networks.splice(i, 1)
+      },
+    }),
+  }
+}
+
 const SAMPLE = `
 version: "3.8"
 services:
@@ -84,3 +120,69 @@ services:
 `)
   t.ok(parsed.services.app.build)
 })
+
+test('removeComposeStack removes project networks after containers', async (t) => {
+  const docker = mockDocker({
+    containers: [
+      {
+        Id: 'c1',
+        State: 'running',
+        Labels: { 'com.docker.compose.project': 'mystack' },
+      },
+    ],
+    networks: [
+      {
+        Id: 'n1',
+        Name: 'mystack_default',
+        Labels: { 'com.docker.compose.project': 'mystack' },
+      },
+      {
+        Id: 'n2',
+        Name: 'other_default',
+        Labels: { 'com.docker.compose.project': 'other' },
+      },
+      {
+        Id: 'bridge',
+        Name: 'bridge',
+        Labels: {},
+      },
+    ],
+  })
+
+  const result = await removeComposeStack(docker, 'mystack')
+  t.is(result.removed, 1)
+  t.is(result.networksRemoved, 1)
+  t.alike(docker.removedContainers, ['c1'])
+  t.is(docker.removedNetworks.length, 1)
+  t.is(docker.removedNetworks[0].name, 'mystack_default')
+})
+
+test('removeComposeStack cleans orphaned project networks with no containers', async (t) => {
+  const docker = mockDocker({
+    containers: [],
+    networks: [
+      {
+        Id: 'n1',
+        Name: 'orphan_backend',
+        Labels: { 'com.docker.compose.project': 'orphan' },
+      },
+    ],
+  })
+
+  const result = await removeComposeStack(docker, 'orphan')
+  t.is(result.removed, 0)
+  t.is(result.networksRemoved, 1)
+  t.is(docker.removedNetworks[0].name, 'orphan_backend')
+})
+
+test('removeComposeStack reports already removed when nothing matches', async (t) => {
+  const docker = mockDocker({
+    containers: [],
+    networks: [{ Id: 'bridge', Name: 'bridge', Labels: {} }],
+  })
+
+  const result = await removeComposeStack(docker, 'missing')
+  t.is(result.removed, 0)
+  t.is(result.networksRemoved, 0)
+  t.ok(/not found|already removed/i.test(result.message))
+})