From 619679404d04cbd50a50df0b028430413c86c665 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Pluchino?= <francois.pluchino@gmail.com>
Date: Wed, 1 May 2019 14:06:25 +0200
Subject: [PATCH] [Travis] Add more environment of tests

---
 .travis.yml | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index c34e739..2e98a2b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,9 +9,29 @@ cache:
 matrix:
     include:
         - php: 7.1
+          env: COMPOSER_VERSION="1.6.*"
+        - php: 7.1
+          env: COMPOSER_VERSION="1.7.*"
+        - php: 7.1
+          env: COMPOSER_VERSION="1.8.*"
+        - php: 7.2
+          env: COMPOSER_VERSION="1.6.*"
+        - php: 7.2
+          env: COMPOSER_VERSION="1.7.*"
         - php: 7.2
+          env: COMPOSER_VERSION="1.8.*"
         - php: 7.3
+          env: COMPOSER_VERSION="1.6.*"
+        - php: 7.3
+          env: COMPOSER_VERSION="1.7.*"
+        - php: 7.3
+          env: COMPOSER_VERSION="1.8.*"
+        - php: nightly
+          env: COMPOSER_VERSION="1.6.*"
+        - php: nightly
+          env: COMPOSER_VERSION="1.7.*"
         - php: nightly
+          env: COMPOSER_VERSION="1.8.*"
 
     allow_failures:
         - php: nightly
@@ -21,7 +41,9 @@ matrix:
 before_script:
     - |
       composer global require --prefer-source phpunit/phpunit:"^6.5.0" php-coveralls/php-coveralls:^2.1.0
-      composer install --prefer-source
+      if [ "$COMPOSER_VERSION" == "" ]; then composer install --prefer-source; fi;
+      if [ "$COMPOSER_VERSION" != "" ]; then composer require "composer/composer:${COMPOSER_VERSION}" --no-update; fi;
+      if [ "$COMPOSER_VERSION" != "" ]; then composer update --prefer-source; fi;
       mkdir -p ./build/logs
 
 script: