scm: subversion: refactor getting svn version and add lib test (#4273).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4825 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/scm/adapters/subversion_adapter.rb

@@ -38,19 +38,21 @@ module Redmine
           def client_version
             @@client_version ||= (svn_binary_version || [])
           end
+
+          def client_available
+            !client_version.empty?
+          end
 
           def svn_binary_version
-            cmd = "#{sq_bin} --version"
-            version = nil
-            shellout(cmd) do |io|
-              # Read svn version in first returned line
-              if m = io.read.to_s.match(%r{\A(.*?)((\d+\.)+\d+)})
-                version = m[2].scan(%r{\d+}).collect(&:to_i)
-              end
-            end
-            return nil if $? && $?.exitstatus != 0
-            version
+            scm_version = scm_version_from_command_line
+            if m = scm_version.match(%r{\A(.*?)((\d+\.)+\d+)})
+              m[2].scan(%r{\d+}).collect(&:to_i)
+            end
           end
+
+          def scm_version_from_command_line
+            shellout("#{sq_bin} --version") { |io| io.read }.to_s
+          end
         end
 
         # Get info about the svn repository

test/unit/lib/redmine/scm/adapters/subversion_adapter_test.rb

@@ -24,12 +24,32 @@ begin
   
     if repository_configured?('subversion')
       def setup
+        repo_path = "file://#{self.class.repository_path('subversion')}"
+        @adapter = Redmine::Scm::Adapters::SubversionAdapter.new(repo_path)
       end
 
       def test_client_version
         v = Redmine::Scm::Adapters::SubversionAdapter.client_version
         assert v.is_a?(Array)
       end
+
+      def test_scm_version
+        to_test = { "svn, version 1.6.13 (r1002816)\n"  => [1,6,13],
+                    "svn, versione 1.6.13 (r1002816)\n" => [1,6,13],
+                    "1.6.1\n1.7\n1.8"                   => [1,6,1],
+                    "1.6.2\r\n1.8.1\r\n1.9.1"           => [1,6,2]}
+        to_test.each do |s, v|
+          test_scm_version_for(s, v)
+        end
+      end
+
+      private
+
+      def test_scm_version_for(scm_version, version)
+        @adapter.class.expects(:scm_version_from_command_line).returns(scm_version)
+        assert_equal version, @adapter.class.svn_binary_version
+      end
+
     else
       puts "Subversion test repository NOT FOUND. Skipping unit tests !!!"
       def test_fake; assert true end