Split out scenarios from the prep-dependencies script. (#7)

.travis.yml

@@ -19,7 +19,7 @@ matrix:
     - php: 7.0.11
     - php: 5.6
     - php: 5.5
-      env: 'SCENARIO=symfony2 HIGHEST_LOWEST="update'
+      env: 'SCENARIO=symfony2 HIGHEST_LOWEST="update --prefer-lowest'
 
 allow_failures:
     - php: 7.2
@@ -36,8 +36,7 @@ install:
   - 'composer scenario "${SCENARIO}" "${HIGHEST_LOWEST-install}"'
 
 script:
-  - vendor/bin/phpcs --standard=PSR2 -n src
-  - vendor/bin/phpunit
+  - composer test
 
 after_success:
   - travis_retry php vendor/bin/coveralls -v

tests/scripts/install-scenario

@@ -20,4 +20,4 @@ echo "Switch to ${SCENARIO} scenario"
 set -ex
 
 composer -n --working-dir=$dir ${ACTION} --prefer-dist --no-scripts
-composer -n --working-dir=$dir licenses
+composer -n --working-dir=$dir info

tests/scripts/prep-dependencies

@@ -1,19 +1,29 @@
 #!/bin/bash
 
-set -ex
-
-SCENARIOS="symfony2 symfony3 symfony4 dev4"
-AUTOLOAD_DIRECTORIES='src tests'
-
-stability_dev4='dev'
+#
+# This script is called automatically on every `composer update`.
+# See "post-update-cmd" in the "scripts" section of composer.json.
+#
+# This script will create a derived composer.json / composer.lock
+# pair for every test scenario.  Test scenarios are defined in the
+# "scenarios" file, which should be customized to suit the needs
+# of the project.
+#
+
+SELF_DIRNAME="`dirname -- "$0"`"
+source ${SELF_DIRNAME}/scenarios
+
+echo
+echo "::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::"
+echo "::"
+echo ":: Update dependencies for the following scenarios:"
+echo "::"
+echo "::    ${SCENARIOS}"
+echo "::"
+echo "::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::"
+echo
 
-platform_php_symfony2='5.5'
-platform_php_symfony3='5.6'
-
-requirement_symfony2='symfony/console:^2.8'
-requirement_symfony3='symfony/console:^3'
-requirement_symfony4='symfony/console:^4'
-requirement_dev4='symfony/console:^4'
+set -ex
 
 for SCENARIO in ${SCENARIOS} ; do
 

tests/scripts/scenarios

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+SCENARIOS="symfony2 symfony3 symfony4 dev4"
+
+AUTOLOAD_DIRECTORIES='src tests'
+
+stability_dev4='dev'
+
+platform_php_symfony2='5.5'
+platform_php_symfony3='5.6'
+
+requirement_symfony2='symfony/console:^2.8'
+requirement_symfony3='symfony/console:^3'
+requirement_symfony4='symfony/console:^4'
+requirement_dev4='symfony/console:^4'