tests/main/component-hooks: add test showing that component hooks can…

… run with connected plug

tests/main/component-hooks/comp-with-install-hook/meta/component.yaml

@@ -0,0 +1,5 @@
+component: snap-with-comps+comp-with-install-hook
+type: test
+version: 1.0
+summary: Component 1
+description: First component for snap-with-comps

tests/main/component-hooks/comp-with-install-hook/meta/hooks/install

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -xe
+
+printf "GET /ip HTTP/1.0\r\n\r\n" | nc httpbin.org 80 2>&1 > "${SNAP_COMMON}/install-logs" 
+
+touch "${SNAP_COMMON}/install-done"

tests/main/component-hooks/snap-with-comps/meta/snap.yaml

@@ -0,0 +1,13 @@
+name: snap-with-comps
+version: 1.0
+summary: Snap with components
+description: A snap that defines components
+base: core22
+components:
+  comp-with-install-hook:
+    type: test
+    hooks:
+      install:
+        plugs: [network]
+plugs:
+  network:

tests/main/component-hooks/task.yaml

@@ -0,0 +1,27 @@
+summary: Test component hooks get run
+
+details: |
+  Verifies that component hooks run on install
+
+systems: [ubuntu-16.04-64, ubuntu-18.04-64, ubuntu-2*, ubuntu-core-*]
+
+debug: |
+  cat /var/snap/snap-with-comps/common/install-logs
+
+execute: |
+  snap pack snap-with-comps/
+  snap pack comp-with-install-hook/
+
+  snap install --dangerous snap-with-comps_1.0_all.snap
+  change_id=$(snap install --no-wait --dangerous snap-with-comps+comp-with-install-hook_1.0.comp)
+  snap watch "${change_id}"
+
+  # check component install change was as expected
+  snap change "${change_id}" | MATCH '^Done .*Prepare component'
+  snap change "${change_id}" | MATCH '^Done .*Mount component'
+  snap change "${change_id}" | MATCH '^Done .*Make component .* available to the system'
+  snap change "${change_id}" | MATCH '^Done .*Run install hook of "snap-with-comps\+comp-with-install-hook" component if present'
+
+  # the hook writes this file if it runs (and uses the network via the network
+  # plug) successfully
+  test -f /var/snap/snap-with-comps/common/install-done