tests/lib/snaps/test-snapd-gsettings-consumer/Makefile

@@ -0,0 +1,7 @@
+# -*- Mode: Makefile; indent-tabs-mode:t; tab-width: 4 -*-
+
+all:
+install:
+	mkdir -p $(DESTDIR)/bin
+	cp -a bin/get $(DESTDIR)/bin/get
+	cp -a bin/set $(DESTDIR)/bin/set

tests/lib/snaps/test-snapd-gsettings-consumer/bin/get

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+schema="$1"
+key="$2"
+
+desktop-launch gsettings get "$schema" "$key"

tests/lib/snaps/test-snapd-gsettings-consumer/bin/set

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+schema="$1"
+key="$2"
+value="$3"
+
+desktop-launch gsettings set "$schema" "$key" "$value"

tests/lib/snaps/test-snapd-gsettings-consumer/snapcraft.yaml

@@ -0,0 +1,22 @@
+name: test-snapd-gsettings-consumer
+version: 1.0
+summary: Basic gsettings consumer snap
+description: A basic snap declaring a plug on gsettings
+
+apps:
+    get:
+        command: bin/get
+        plugs: [gsettings, home]
+    set:
+        command: bin/set
+        plugs: [gsettings, home]
+
+parts:
+    gsettings:
+        plugin: make
+        source: .
+        after: [desktop/glib-only]
+        stage-packages: [libglib2.0-bin, gsettings-ubuntu-schemas, usermetricsservice, dconf-gsettings-backend]
+        snap:
+            - bin/*
+            - usr/share/glib-2.0/*

tests/main/interfaces-gsettings/task.yaml

@@ -0,0 +1,69 @@
+summary: Ensure that the gsettings interface works.
+
+summary: |
+    The gsettings interface allows a snap to access the locale configuration.
+
+    A snap which defines the gsettings plug must be shown in the interfaces list.
+    The plug must be autoconnected on install and, as usual, must be able to be
+    reconnected.
+
+    A snap declaring a plug on this interface must be able to act as a gsettings client.
+
+environment:
+    GSETTINGS_SCHEMA: com.canonical.UserMetrics
+    GSETTINGS_KEY: theme
+
+prepare: |
+    echo "Given a snap declaring a plug on the gsettings interface is installed"
+    snap install test-snapd-gsettings-consumer
+
+    echo "And a package with a gsettings backend is installed"
+    apt install -y usermetricsservice
+
+    echo "And a gsettings value is kept back"
+    echo $(test-snapd-gsettings-consumer.get $GSETTINGS_SCHEMA $GSETTINGS_KEY) > gsettings-key.back
+
+restore: |
+    cat gsettings-key.back | xargs test-snapd-gsettings-consumer.set $GSETTINGS_KEY
+    rm -f gsettings*.error gsettings-key.back
+    apt remove -y usermetricsservice
+    apt autoremove -y
+
+execute: |
+    CONNECTED_PATTERN=":gsettings +test-snapd-gsettings-consumer"
+    DISCONNECTED_PATTERN="(?s).*?\n- +test-snapd-gsettings-consumer:gsettings"
+
+    echo "Then it is connected by default"
+    snap interfaces | grep -Pzq "$CONNECTED_PATTERN"
+
+    echo "==================================="
+
+    echo "When the plug is connected"
+    snap connect test-snapd-gsettings-consumer:gsettings ubuntu-core:gsettings
+    snap interfaces | grep -Pzq "$CONNECTED_PATTERN"
+
+    echo "Then the snap is able to write the gsettings keys"
+    su -l -c "test-snapd-gsettings-consumer.set $GSETTINGS_SCHEMA $GSETTINGS_KEY value" test
+
+    echo "And the snap is able to read the gsettings keys"
+    [ "$(su -l -c 'test-snapd--gsettings-consumer.get $GSETTINGS_SCHEMA $GSETTINGS_KEY' test)" = "value" ]
+
+    echo "==================================="
+
+    echo "When the plug is disconnected"
+    snap disconnect test-snapd-gsettings-consumer:gsettings ubuntu-core:gsettings
+    snap interfaces | grep -Pzq "$DISCONNECTED_PATTERN"
+
+    echo "Then the snap is not able to write the gsettings keys"
+    if su -l -c "test-snapd-gsettings-consumer.set $GSETTINGS_SCHEMA $GSETTINGS_KEY value 2>${PWD}/gsettings-write.error" test; then
+        echo "Expected permission error writing gsettings key with disconnected plug"
+        exit 1
+    fi
+    grep -q "Permission denied" gsettings-write.error
+
+    echo "And the snap is not able to read gsettings keys"
+    if su -l -c "test-snapd.gsettings-consumer.get $GSETTINGS_SCHEMA $GSETTINGS_KEY 2>${PWD}/gsettings-read.error" test; then
+        echo "Expected permission error reading gsettings key with disconnected plug"
+        exit 1
+    fi
+    grep -q "Permission denied" gsettings-read.error