added shunit2 tests for parameter validation

.drone.yml

@@ -1,9 +1,15 @@
 pipeline:
 
-  docker:
-    image: plugins/docker
-    repo: bunix42/drone-sendxmpp
-    tags:
-     - 0.0.1
-     - latest
-    secrets: [ docker_username, docker_password ]
+  test:
+    image: alpine
+    commands:
+      - cd test
+      - ./sendxmpp_parameter_test.sh
+
+#  docker:
+#    image: plugins/docker
+#    repo: bunix42/drone-sendxmpp
+#    tags:
+#     - 0.0.1
+#     - latest
+#    secrets: [ docker_username, docker_password ]

sendxmpp.sh

@@ -1,14 +1,14 @@
 #!/bin/sh
 
 # set username from secret if not supplied
-[ -z $PLUGIN_USERNAME ] && [ -n $SENDXMPP_USERNAME ] && PLUGIN_USERNAME="${SENDXMPP_USERNAME}"
-[ -z $PLUGIN_PASSWORD ] && [ -n $SENDXMPP_PASSWORD ] && PLUGIN_PASSWORD="${SENDXMPP_PASSWORD}"
+[ -z "$PLUGIN_USERNAME" ] && [ -n "$SENDXMPP_USERNAME" ] && PLUGIN_USERNAME="${SENDXMPP_USERNAME}"
+[ -z "$PLUGIN_PASSWORD" ] && [ -n "$SENDXMPP_PASSWORD" ] && PLUGIN_PASSWORD="${SENDXMPP_PASSWORD}"
 
 # check if all required fields are set
-[ -z "$PLUGIN_USERNAME" ] && echo "missing username or sendxmpp_username secret" && exit 1
-[ -z "$PLUGIN_PASSWORD" ] && echo "missing password or sendxmpp_password secret" && exit 1
-[ -z "$PLUGIN_JSERVER" ] && echo "missing jserver" && exit 1
-[ -z "$PLUGIN_RECIPIENT" ] && echo "missing recipient" && exit 1
+[ -z "$PLUGIN_USERNAME" ] && echo "missing username or sendxmpp_username secret" && exit 123
+[ -z "$PLUGIN_PASSWORD" ] && echo "missing password or sendxmpp_password secret" && exit 123
+[ -z "$PLUGIN_JSERVER" ] && echo "missing jserver" && exit 123
+[ -z "$PLUGIN_RECIPIENT" ] && echo "missing recipient" && exit 123
 
 # create message from drone environment
 [ -n "$DRONE_TAG"] && MSG="$DRONE_REPO_NAME:$DRONE_TAG" || MSG="$DRONE_REPO_NAME:$DRONE_TAG"

test/sendxmpp_parameter_test.sh

@@ -0,0 +1,77 @@
+# !/bin/sh
+
+setUp() {
+	export PLUGIN_USERNAME="username"
+	export PLUGIN_PASSWORD="password"
+	export PLUGIN_JSERVER="server.invalid"
+	export PLUGIN_RECIPIENT="foo@bar.invalid"
+}
+
+tearDown() {
+	unset PLUGIN_USERNAME
+	unset PLUGIN_PASSWORD
+	unset PLUGIN_JSERVER
+  unset PLUGIN_RECIPIENT
+	unset SENDXMPP_USERNAME
+	unset SENDXMPP_PASSWORD
+}
+
+testAllOk() {
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 1 $?
+	assertTrue "[ -z "$stdout" ]"
+}
+
+testMissingUsernameAndUsernameSecret() {
+	unset PLUGIN_USERNAME
+	unset SENDXMPP_USERNAME
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 123 $?
+  assertEquals "missing username or sendxmpp_username secret" "$stdout"
+}
+
+testUsernameSecretSet() {
+  unset PLUGIN_USERNAME
+	export SENDXMPP_USERNAME="secretusername"
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 1 $?
+	assertTrue "[ -z "$stdout" ]"
+}
+
+testMissingPasswordAndPasswordSecret() {
+	unset PLUGIN_PASSWORD
+	unset SENDXMPP_PASSWORD
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 123 $?
+  assertEquals "missing password or sendxmpp_password secret" "$stdout"
+}
+
+testPasswordSecretSet() {
+	unset PLUGIN_PASSWORD
+	export SENDXMPP_PASSWORD="secretpassword"
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 1 $?
+	assertTrue "[ -z "$stdout" ]"
+}
+
+testMissingJserver() {
+	unset PLUGIN_JSERVER
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 123 $?
+	assertEquals "missing jserver" "$stdout"
+}
+
+testMissingRecipient() {
+	unset PLUGIN_RECIPIENT
+
+	stdout=$( ../sendxmpp.sh 2> /dev/null )
+	assertEquals 123 $?
+	assertEquals "missing recipient" "$stdout"
+}
+
+. ./shunit2