test: env version writing tests

tests/integration/app_upgrade_env_version.bats

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+setup_file(){
+  load "$PWD/tests/integration/helpers/common"
+  _common_setup
+  _add_server
+  _new_app
+}
+
+teardown_file(){
+  _rm_app
+  _rm_server
+}
+
+setup(){
+  load "$PWD/tests/integration/helpers/common"
+  _common_setup
+}
+
+teardown(){
+  _undeploy_app
+  _reset_recipe
+}
+
+@test "upgrade writes version to env file" {
+  run $ABRA app deploy "$TEST_APP_DOMAIN" "0.1.0+1.20.0" --no-input --no-converge-checks
+  assert_success
+  assert_output --partial '0.1.0+1.20.0'
+
+  run grep -q "TYPE=abra-test-recipe:0.1.0+1.20.0" \
+    "$ABRA_DIR/servers/$TEST_SERVER/$TEST_APP_DOMAIN.env"
+  assert_success
+
+  run $ABRA app upgrade "$TEST_APP_DOMAIN" "0.2.0+1.21.0" --no-input --no-converge-checks
+  assert_success
+  assert_output --partial "0.2.0+1.21.0"
+
+  run grep -q "TYPE=abra-test-recipe:0.2.0+1.21.0" \
+    "$ABRA_DIR/servers/$TEST_SERVER/$TEST_APP_DOMAIN.env"
+  assert_success
+}