Added rubies 3.3 and 3.4 to the testing matrix

Author: hurricup

.travis.yml

@@ -2,6 +2,12 @@ language: ruby
 matrix:
   fast_finish: true
   include:
+    - os: linux
+      dist: xenial
+      rvm: 3.4-preview2
+    - os: linux
+      dist: xenial
+      rvm: 3.3
     - os: linux
       dist: xenial
       rvm: 3.2
@@ -32,6 +38,12 @@ matrix:
     - os: linux
       dist: xenial
       rvm: 2.1
+    - os: linux
+      dist: bionic
+      rvm: 3.4-preview2
+    - os: linux
+      dist: bionic
+      rvm: 3.3
     - os: linux
       dist: bionic
       rvm: 3.2
@@ -56,6 +68,12 @@ matrix:
     - os: linux
       dist: bionic
       rvm: 2.3
+    - os: linux
+      dist: focal
+      rvm: 3.4-preview2
+    - os: linux
+      dist: focal
+      rvm: 3.3
     - os: linux
       dist: focal
       rvm: 3.2
@@ -77,6 +95,12 @@ matrix:
     - os: linux
       dist: focal
       rvm: 2.4
+    - os: osx
+      osx_image: xcode11.3
+      rvm: 3.4-preview2
+    - os: osx
+      osx_image: xcode11.3
+      rvm: 3.3
     - os: osx
       osx_image: xcode11.3
       rvm: 3.2
@@ -98,6 +122,12 @@ matrix:
     - os: osx
       osx_image: xcode11.3
       rvm: 2.4
+    - os: osx
+      osx_image: xcode12.2
+      rvm: 3.4-preview2
+    - os: osx
+      osx_image: xcode12.2
+      rvm: 3.3
     - os: osx
       osx_image: xcode12.2
       rvm: 3.2
@@ -122,5 +152,3 @@ matrix:
     - os: osx
       osx_image: xcode12.2
       rvm: ruby-head
-  allow_failures:
-    - rvm: ruby-head

Rakefile

@@ -18,7 +18,7 @@ task :gen_travis do
     versions.each { |version| self << ['linux', 'dist', distro, version] }
   end
 
-  since_24 = %w[2.4 2.5 2.6 2.7 3.0 3.1 3.2].reverse
+  since_24 = %w[2.4 2.5 2.6 2.7 3.0 3.1 3.2 3.3 3.4-preview2].reverse
   since_23 = [*since_24, '2.3']
   since_22 = [*since_23, '2.2']
   since_21 = [*since_22, '2.1']