Added small script to test installation on with different dependencies

Author: Nyholm

.travis.yml

@@ -23,10 +23,24 @@ branches:
 matrix:
     fast_finish: true
     include:
+        - name: Test Install
+          php: 7.3
+          install:
+          script:
+              # Test that we find Guzzle
+              - ./tests/install.sh "will-find" "Http\Discovery\HttpClientDiscovery::find();" "php-http/guzzle6-adapter"
+              # Test that we find a client with Symfony and Guzzle PSR-7
+              - ./tests/install.sh will-find "Http\Discovery\HttpClientDiscovery::find();" "symfony/http-client:5.* php-http/httplug php-http/message-factory guzzlehttp/psr7:1.* http-interop/http-factory-guzzle"
+              # We should fail if we dont have php-http/message-factory or PSR-17
+              - ./tests/install.sh cant-find "Http\Discovery\HttpClientDiscovery::find();" "symfony/http-client:5.* php-http/httplug php-http/message-factory guzzlehttp/psr7:1.*"
+              - ./tests/install.sh cant-find "Http\Discovery\HttpClientDiscovery::find();" "symfony/http-client:5.* php-http/httplug guzzlehttp/psr7:1.* http-interop/http-factory-guzzle"
+              # We should be able to find a client when Symfony is only partly installed and we have guzzle adapter installed
+              - ./tests/install.sh will-find "Http\Discovery\HttpClientDiscovery::find();" "symfony/http-client:5.* php-http/guzzle6-adapter php-http/httplug php-http/message-factory guzzlehttp/psr7:1.*"
+
         - name: PHPSpec code coverage
           php: 7.1
-          # Disable code coverage until https://github.com/leanphp/phpspec-code-coverage/pull/38 is released
-          # DEPENDENCIES="leanphp/phpspec-code-coverage:^4.2" TEST_COMMAND="composer test-ci"
+            # Disable code coverage until https://github.com/leanphp/phpspec-code-coverage/pull/38 is released
+            # DEPENDENCIES="leanphp/phpspec-code-coverage:^4.2" TEST_COMMAND="composer test-ci"
           env: COMPOSER_FLAGS="--prefer-stable --prefer-lowest" COVERAGE=true TEST_COMMAND="composer test" PULI_VERSION=1.0.0-beta9
         - name: PHPUnit tests
           php: 7.3

tests/install.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+gethash() {
+    if hash md5sum 2>/dev/null; then
+         echo -n "$@" | md5sum | awk '{print $1}'
+    else
+         echo -n "$@" | md5 | awk '{print $1}'
+    fi
+}
+
+HASH=`gethash $@`
+BUILD_DIR=build/`echo ${HASH::7}`
+
+echo "Using directory: ${BUILD_DIR}"
+# Prepare a folder
+#rm -rf $BUILD_DIR
+mkdir -p $BUILD_DIR
+
+# Init composer
+composer init --working-dir $BUILD_DIR --no-interaction
+composer req --working-dir $BUILD_DIR php-http/discovery --no-update
+
+# Define packages from arguments
+composer req --working-dir $BUILD_DIR $3
+
+# Copy the current version of php-http/discovery
+cp -R src $BUILD_DIR/vendor/php-http/discovery
+cd $BUILD_DIR
+
+# Run PHP and check exit code
+php -r "require 'vendor/autoload.php'; ${2}" > /dev/null
+PHP_EXIT_CODE=$?
+
+# Print result
+echo ""
+if [ $PHP_EXIT_CODE -eq 0 ]; then
+    echo "We found a package"
+else
+    echo "We did not find anything"
+fi
+
+if [ "$1" = "will-find" ]; then
+    exit $PHP_EXIT_CODE;
+elif [ $PHP_EXIT_CODE -ne 0 ]; then
+    exit 0
+fi
+
+echo "We did find a class but we were not supposed to"
+exit 1