Tests for function update (#550)

Tests for updates to a function of new deployment executor type. Tests check for changes in the environment, scale, secrets etc. Also checks conversion of function executor type from new deployment to pool manager and vice versa

test/tests/test_fn_update/test_env_update.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source $(dirname $0)/fnupdate_utils.sh
+
+ROOT=$(dirname $0)/../../..
+
+env_old=python-$(date +%N)
+env_new=python-$(date +%N)
+fn=hellopy-$(date +%N)
+
+log "Creating env $env_old"
+fission env create --name $env_old --image fission/python-env
+trap "fission env delete --name $env_old" EXIT
+
+log "Creating function $fn"
+fission fn create --name $fn --env $env_old --code $ROOT/examples/python/hello.py --minscale 1 --maxscale 4 --executortype newdeploy --mincpu 20 --maxcpu 100 --minmemory 128 --maxmemory 256
+trap "fission fn delete --name $fn" EXIT
+
+log "Creating route for function $fn"
+fission route create --function ${fn} --url /${fn} --method GET
+
+log "Waiting for router to catch up"
+sleep 5
+
+timeout 60 bash -c "test_fn $fn 'world'"
+
+log "Creating a new env $env_new"
+fission env create --name $env_new --image fission/python-env
+trap "fission env delete --name $env_old" EXIT
+
+log "Updating function with a new environment"
+fission fn update --name $fn --env $env_new --code $ROOT/examples/python/hello.py --minscale 1 --maxscale 4 --executortype newdeploy --mincpu 20 --maxcpu 100 --minmemory 128 --maxmemory 256
+
+log "Waiting for update to catch up"
+sleep 5
+
+timeout 60 bash -c "test_fn $fn 'world'"