diff --git a/spec/acceptance/backup_spec.rb b/spec/acceptance/backup_spec.rb
index e6bbd17..f021a55 100644
--- a/spec/acceptance/backup_spec.rb
+++ b/spec/acceptance/backup_spec.rb
@@ -1,20 +1,23 @@
 require 'spec_helper_acceptance'
 
 describe 'concat backup parameter' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context '=> puppet' do
     before :all do
-      shell('rm -rf /tmp/concat')
-      shell('mkdir -p /tmp/concat')
-      shell("/bin/echo 'old contents' > /tmp/concat/file")
+      shell("rm -rf #{basedir}")
+      shell("mkdir -p #{basedir}")
+      shell("echo 'old contents' > #{basedir}/file")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         backup => 'puppet',
       }
       concat::fragment { 'new file':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => 'new contents',
       }
     EOS
@@ -22,12 +25,12 @@ describe 'concat backup parameter' do
     it 'applies the manifest twice with "Filebucketed" stdout and no stderr' do
       apply_manifest(pp, :catch_failures => true) do |r|
         expect(r.stderr).to eq("")
-        expect(r.stdout).to match(/Filebucketed \/tmp\/concat\/file to puppet with sum 0140c31db86293a1a1e080ce9b91305f/) # sum is for file contents of 'old contents'
+        expect(r.stdout).to match(/Filebucketed #{basedir}\/file to puppet with sum 0140c31db86293a1a1e080ce9b91305f/) # sum is for file contents of 'old contents'
       end
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain 'new contents' }
     end
@@ -35,18 +38,18 @@ describe 'concat backup parameter' do
 
   context '=> .backup' do
     before :all do
-      shell('rm -rf /tmp/concat')
-      shell('mkdir -p /tmp/concat')
-      shell("/bin/echo 'old contents' > /tmp/concat/file")
+      shell("rm -rf #{basedir}")
+      shell("mkdir -p #{basedir}")
+      shell("echo 'old contents' > #{basedir}/file")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         backup => '.backup',
       }
       concat::fragment { 'new file':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => 'new contents',
       }
     EOS
@@ -58,11 +61,11 @@ describe 'concat backup parameter' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain 'new contents' }
     end
-    describe file('/tmp/concat/file.backup') do
+    describe file("#{basedir}/file.backup") do
       it { should be_file }
       it { should contain 'old contents' }
     end
@@ -72,18 +75,18 @@ describe 'concat backup parameter' do
   # boolean false value, but the string 'false' has the same effect in Puppet 3
   context "=> 'false'" do
     before :all do
-      shell('rm -rf /tmp/concat')
-      shell('mkdir -p /tmp/concat')
-      shell("/bin/echo 'old contents' > /tmp/concat/file")
+      shell("rm -rf #{basedir}")
+      shell("mkdir -p #{basedir}")
+      shell("echo 'old contents' > #{basedir}/file")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         backup => '.backup',
       }
       concat::fragment { 'new file':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => 'new contents',
       }
     EOS
@@ -96,7 +99,7 @@ describe 'concat backup parameter' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain 'new contents' }
     end
diff --git a/spec/acceptance/concat_spec.rb b/spec/acceptance/concat_spec.rb
index 673d793..4480cb5 100644
--- a/spec/acceptance/concat_spec.rb
+++ b/spec/acceptance/concat_spec.rb
@@ -13,6 +13,9 @@ else
 end
 
 describe 'basic concat test' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
 
   shared_examples 'successfully_applied' do |pp|
     it 'applies the manifest twice with no stderr' do
@@ -24,20 +27,20 @@ describe 'basic concat test' do
   context 'owner/group' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         owner => '#{username}',
         group => '#{groupname}',
         mode  => '0644',
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '1',
         order   => '01',
       }
 
       concat::fragment { '2':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '2',
         order   => '02',
       }
@@ -45,7 +48,7 @@ describe 'basic concat test' do
 
     it_behaves_like 'successfully_applied', pp
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should be_owned_by username }
       it { should be_grouped_into groupname }
@@ -56,7 +59,7 @@ describe 'basic concat test' do
       it { should contain '1' }
       it { should contain '2' }
     end
-    describe file("#{default.puppet['vardir']}/concat/_tmp_concat_file/fragments/01_1") do
+    describe file("#{default.puppet['vardir']}/concat/#{basedir.gsub('/','_')}_file/fragments/01_1") do
       it { should be_file }
       it { should be_owned_by username }
       it { should be_grouped_into groupname }
@@ -65,7 +68,7 @@ describe 'basic concat test' do
         should be_mode 644
       }
     end
-    describe file("#{default.puppet['vardir']}/concat/_tmp_concat_file/fragments/02_2") do
+    describe file("#{default.puppet['vardir']}/concat/#{basedir.gsub('/','_')}_file/fragments/02_2") do
       it { should be_file }
       it { should be_owned_by username }
       it { should be_grouped_into groupname }
diff --git a/spec/acceptance/empty_spec.rb b/spec/acceptance/empty_spec.rb
index f59916d..57970dd 100644
--- a/spec/acceptance/empty_spec.rb
+++ b/spec/acceptance/empty_spec.rb
@@ -1,10 +1,13 @@
 require 'spec_helper_acceptance'
 
 describe 'concat force empty parameter' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context 'should run successfully' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         mode  => '0644',
         force => true,
       }
@@ -15,7 +18,7 @@ describe 'concat force empty parameter' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should_not contain '1\n2' }
     end
diff --git a/spec/acceptance/fragment_source_spec.rb b/spec/acceptance/fragment_source_spec.rb
index 6d3493b..0ec6d49 100644
--- a/spec/acceptance/fragment_source_spec.rb
+++ b/spec/acceptance/fragment_source_spec.rb
@@ -13,27 +13,30 @@ else
 end
 
 describe 'concat::fragment source' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context 'should read file fragments from local system' do
     before(:all) do
-      shell("/bin/echo 'file1 contents' > /tmp/concat/file1")
-      shell("/bin/echo 'file2 contents' > /tmp/concat/file2")
+      shell("/bin/echo 'file1 contents' > #{basedir}/file1")
+      shell("/bin/echo 'file2 contents' > #{basedir}/file2")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/foo': }
+      concat { '#{basedir}/foo': }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/foo',
-        source  => '/tmp/concat/file1',
+        target  => '#{basedir}/foo',
+        source  => '#{basedir}/file1',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string1 contents',
       }
       concat::fragment { '3':
-        target  => '/tmp/concat/foo',
-        source  => '/tmp/concat/file2',
+        target  => '#{basedir}/foo',
+        source  => '#{basedir}/file2',
       }
     EOS
 
@@ -42,7 +45,7 @@ describe 'concat::fragment source' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/foo') do
+    describe file("#{basedir}/foo") do
       it { should be_file }
       it { should contain 'file1 contents' }
       it { should contain 'string1 contents' }
@@ -52,43 +55,43 @@ describe 'concat::fragment source' do
 
   context 'should create files containing first match only.' do
     before(:all) do
-      shell('rm -rf /tmp/concat /var/lib/puppet/concat')
-      shell('mkdir -p /tmp/concat')
-      shell("/bin/echo 'file1 contents' > /tmp/concat/file1")
-      shell("/bin/echo 'file2 contents' > /tmp/concat/file2")
+      shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
+      shell("mkdir -p #{basedir}")
+      shell("echo 'file1 contents' > #{basedir}/file1")
+      shell("echo 'file2 contents' > #{basedir}/file2")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/result_file1':
+      concat { '#{basedir}/result_file1':
         owner   => '#{username}',
         group   => '#{groupname}',
         mode    => '0644',
       }
-      concat { '/tmp/concat/result_file2':
+      concat { '#{basedir}/result_file2':
         owner   => '#{username}',
         group   => '#{groupname}',
         mode    => '0644',
       }
-      concat { '/tmp/concat/result_file3':
+      concat { '#{basedir}/result_file3':
         owner   => '#{username}',
         group   => '#{groupname}',
         mode    => '0644',
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/result_file1',
-        source => [ '/tmp/concat/file1', '/tmp/concat/file2' ],
+        target  => '#{basedir}/result_file1',
+        source => [ '#{basedir}/file1', '#{basedir}/file2' ],
         order   => '01',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/result_file2',
-        source => [ '/tmp/concat/file2', '/tmp/concat/file1' ],
+        target  => '#{basedir}/result_file2',
+        source => [ '#{basedir}/file2', '#{basedir}/file1' ],
         order   => '01',
       }
       concat::fragment { '3':
-        target  => '/tmp/concat/result_file3',
-        source => [ '/tmp/concat/file1', '/tmp/concat/file2' ],
+        target  => '#{basedir}/result_file3',
+        source => [ '#{basedir}/file1', '#{basedir}/file2' ],
         order   => '01',
       }
     EOS
@@ -97,17 +100,17 @@ describe 'concat::fragment source' do
       expect(apply_manifest(pp, :catch_failures => true).stderr).to eq("")
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
-    describe file('/tmp/concat/result_file1') do
+    describe file("#{basedir}/result_file1") do
       it { should be_file }
       it { should contain 'file1 contents' }
       it { should_not contain 'file2 contents' }
     end
-    describe file('/tmp/concat/result_file2') do
+    describe file("#{basedir}/result_file2") do
       it { should be_file }
       it { should contain 'file2 contents' }
       it { should_not contain 'file1 contents' }
     end
-    describe file('/tmp/concat/result_file3') do
+    describe file("#{basedir}/result_file3") do
       it { should be_file }
       it { should contain 'file1 contents' }
       it { should_not contain 'file2 contents' }
@@ -116,22 +119,22 @@ describe 'concat::fragment source' do
 
   context 'should fail if no match on source.' do
     before(:all) do
-      shell('rm -rf /tmp/concat /var/lib/puppet/concat')
-      shell('mkdir -p /tmp/concat')
-      shell('/bin/rm -rf /tmp/concat/fail_no_source /tmp/concat/nofilehere /tmp/concat/nothereeither')
+      shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
+      shell("mkdir -p #{basedir}")
+      shell("rm -rf #{basedir}/fail_no_source #{basedir}/nofilehere #{basedir}/nothereeither")
     end
 
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/fail_no_source':
+      concat { '#{basedir}/fail_no_source':
         owner   => '#{username}',
         group   => '#{groupname}',
         mode    => '0644',
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/fail_no_source',
-        source => [ '/tmp/concat/nofilehere', '/tmp/concat/nothereeither' ],
+        target  => '#{basedir}/fail_no_source',
+        source => [ '#{basedir}/nofilehere', '#{basedir}/nothereeither' ],
         order   => '01',
       }
     EOS
@@ -139,7 +142,7 @@ describe 'concat::fragment source' do
     it 'applies the manifest with resource failures' do
       apply_manifest(pp, :expect_failures => true)
     end
-    describe file('/tmp/concat/fail_no_source') do
+    describe file("#{basedir}/fail_no_source") do
       #FIXME: Serverspec::Type::File doesn't support exists? for some reason. so... hack.
       it { should_not be_file }
       it { should_not be_directory }
diff --git a/spec/acceptance/newline_spec.rb b/spec/acceptance/newline_spec.rb
index 92a78ad..9ecf26b 100644
--- a/spec/acceptance/newline_spec.rb
+++ b/spec/acceptance/newline_spec.rb
@@ -1,18 +1,21 @@
 require 'spec_helper_acceptance'
 
 describe 'concat ensure_newline parameter' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context '=> false' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         ensure_newline => false,
       }
       concat::fragment { '1':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '1',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '2',
       }
     EOS
@@ -22,7 +25,7 @@ describe 'concat ensure_newline parameter' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain '12' }
     end
@@ -31,15 +34,15 @@ describe 'concat ensure_newline parameter' do
   #context '=> true' do
   #  pp = <<-EOS
   #    include concat::setup
-  #    concat { '/tmp/concat/file':
+  #    concat { '#{basedir}/file':
   #      ensure_newline => true,
   #    }
   #    concat::fragment { '1':
-  #      target  => '/tmp/concat/file',
+  #      target  => '#{basedir}/file',
   #      content => '1',
   #    }
   #    concat::fragment { '2':
-  #      target  => '/tmp/concat/file',
+  #      target  => '#{basedir}/file',
   #      content => '2',
   #    }
   #  EOS
@@ -51,7 +54,7 @@ describe 'concat ensure_newline parameter' do
   #    #are modified in place.
   #  end
 
-  #  describe file('/tmp/concat/file') do
+  #  describe file("#{basedir}/file") do
   #    it { should be_file }
   #    it { should contain "1\n2\n" }
   #  end
diff --git a/spec/acceptance/order_spec.rb b/spec/acceptance/order_spec.rb
index e148808..d01cae2 100644
--- a/spec/acceptance/order_spec.rb
+++ b/spec/acceptance/order_spec.rb
@@ -1,27 +1,30 @@
 require 'spec_helper_acceptance'
 
 describe 'concat order' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   before(:all) do
-    shell('rm -rf /tmp/concat /var/lib/puppet/concat')
-    shell('mkdir -p /tmp/concat')
+    shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
+    shell("mkdir -p #{basedir}")
   end
 
   context '=> alpha' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/foo':
+      concat { '#{basedir}/foo':
         order => 'alpha'
       }
       concat::fragment { '1':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string1',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string2',
       }
       concat::fragment { '10':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string10',
       }
     EOS
@@ -31,7 +34,7 @@ describe 'concat order' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/foo') do
+    describe file("#{basedir}/foo") do
       it { should be_file }
       #XXX Solaris 10 doesn't support multi-line grep
       it("should contain string10\nstring1\nsring2", :unless => fact('osfamily') == 'Solaris') {
@@ -43,19 +46,19 @@ describe 'concat order' do
   context '=> numeric' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/foo':
+      concat { '#{basedir}/foo':
         order => 'numeric'
       }
       concat::fragment { '1':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string1',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string2',
       }
       concat::fragment { '10':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string10',
       }
     EOS
@@ -65,7 +68,7 @@ describe 'concat order' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/foo') do
+    describe file("#{basedir}/foo") do
       it { should be_file }
       #XXX Solaris 10 doesn't support multi-line grep
       it("should contain string1\nstring2\nsring10", :unless => fact('osfamily') == 'Solaris') {
@@ -76,27 +79,30 @@ describe 'concat order' do
 end # concat order
 
 describe 'concat::fragment order' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   before(:all) do
-    shell('rm -rf /tmp/concat /var/lib/puppet/concat')
-    shell('mkdir -p /tmp/concat')
+    shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
+    shell("mkdir -p #{basedir}")
   end
 
   context '=> reverse order' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/foo': }
+      concat { '#{basedir}/foo': }
       concat::fragment { '1':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string1',
         order   => '15',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string2',
         # default order 10
       }
       concat::fragment { '3':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string3',
         order   => '1',
       }
@@ -107,7 +113,7 @@ describe 'concat::fragment order' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/foo') do
+    describe file("#{basedir}/foo") do
       it { should be_file }
       #XXX Solaris 10 doesn't support multi-line grep
       it("should contain string3\nstring2\nsring1", :unless => fact('osfamily') == 'Solaris') {
@@ -119,19 +125,19 @@ describe 'concat::fragment order' do
   context '=> normal order' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/foo': }
+      concat { '#{basedir}/foo': }
       concat::fragment { '1':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string1',
         order   => '01',
       }
       concat::fragment { '2':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string2',
         order   => '02'
       }
       concat::fragment { '3':
-        target  => '/tmp/concat/foo',
+        target  => '#{basedir}/foo',
         content => 'string3',
         order   => '03',
       }
@@ -142,7 +148,7 @@ describe 'concat::fragment order' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/foo') do
+    describe file("#{basedir}/foo") do
       it { should be_file }
       #XXX Solaris 10 doesn't support multi-line grep
       it("should contain string1\nstring2\nsring3", :unless => fact('osfamily') == 'Solaris') {
diff --git a/spec/acceptance/replace_spec.rb b/spec/acceptance/replace_spec.rb
index 99e9d48..1a468b7 100644
--- a/spec/acceptance/replace_spec.rb
+++ b/spec/acceptance/replace_spec.rb
@@ -1,29 +1,32 @@
 require 'spec_helper_acceptance'
 
 describe 'replacement of' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context 'file' do
     context 'should not succeed' do
       before(:all) do
-        shell('mkdir -p /tmp/concat')
-        shell('echo "file exists" > /tmp/concat/file')
+        shell("mkdir -p #{basedir}")
+        shell('echo "file exists" > #{basedir}/file')
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file':
+        concat { '#{basedir}/file':
           replace => false,
         }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -33,7 +36,7 @@ describe 'replacement of' do
         expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
       end
 
-      describe file('/tmp/concat/file') do
+      describe file("#{basedir}/file") do
         it { should be_file }
         it { should contain 'file exists' }
         it { should_not contain '1' }
@@ -43,26 +46,26 @@ describe 'replacement of' do
 
     context 'should succeed' do
       before(:all) do
-        shell('mkdir -p /tmp/concat')
-        shell('echo "file exists" > /tmp/concat/file')
+        shell("mkdir -p #{basedir}")
+        shell("echo "file exists" > #{basedir}/file")
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file':
+        concat { '#{basedir}/file':
           replace => true,
         }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -72,7 +75,7 @@ describe 'replacement of' do
         expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
       end
 
-      describe file('/tmp/concat/file') do
+      describe file("#{basedir}/file") do
         it { should be_file }
         it { should_not contain 'file exists' }
         it { should contain '1' }
@@ -87,26 +90,26 @@ describe 'replacement of' do
       # when using ensure => present and source => ... but it will not when using
       # ensure => present and content => ...; this is somewhat confusing behavior
       before(:all) do
-        shell('mkdir -p /tmp/concat')
-        shell('ln -s /tmp/concat/dangling /tmp/concat/file')
+        shell("mkdir -p #{basedir}")
+        shell("ln -s #{basedir}/dangling #{basedir}/file")
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file':
+        concat { '#{basedir}/file':
           replace => false,
         }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -117,11 +120,11 @@ describe 'replacement of' do
       end
 
       # XXX specinfra doesn't support be_linked_to on AIX
-      describe file('/tmp/concat/file'), :unless => fact('osfamily') == "AIX" do
-        it { should be_linked_to '/tmp/concat/dangling' }
+      describe file("#{basedir}/file"), :unless => fact("osfamily") == "AIX" do
+        it { should be_linked_to "#{basedir}/dangling" }
       end
 
-      describe file('/tmp/concat/dangling') do
+      describe file("#{basedir}/dangling") do
         # XXX serverspec does not have a matcher for 'exists'
         it { should_not be_file }
         it { should_not be_directory }
@@ -133,26 +136,26 @@ describe 'replacement of' do
       # when using ensure => present and source => ... but it will not when using
       # ensure => present and content => ...; this is somewhat confusing behavior
       before(:all) do
-        shell('mkdir -p /tmp/concat')
-        shell('ln -s /tmp/concat/dangling /tmp/concat/file')
+        shell("mkdir -p #{basedir}")
+        shell("ln -s #{basedir}/dangling #{basedir}/file")
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file':
+        concat { '#{basedir}/file':
           replace => true,
         }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -162,7 +165,7 @@ describe 'replacement of' do
         expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
       end
 
-      describe file('/tmp/concat/file') do
+      describe file("#{basedir}/file") do
         it { should be_file }
         it { should contain '1' }
         it { should contain '2' }
@@ -173,23 +176,23 @@ describe 'replacement of' do
   context 'directory' do
     context 'should not succeed' do
       before(:all) do
-        shell('mkdir -p /tmp/concat/file')
+        shell("mkdir -p #{basedir}/file")
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file': }
+        concat { '#{basedir}/file': }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -199,7 +202,7 @@ describe 'replacement of' do
         expect(apply_manifest(pp, :expect_failures => true).stderr).to match(/change from directory to file failed/)
       end
 
-      describe file('/tmp/concat/file') do
+      describe file("#{basedir}/file") do
         it { should be_directory }
       end
     end
@@ -211,25 +214,25 @@ describe 'replacement of' do
     # replacement.
     context 'should succeed', :pending => 'not yet implemented' do
       before(:all) do
-        shell('mkdir -p /tmp/concat/file')
+        shell("mkdir -p #{basedir}/file")
       end
       after(:all) do
-        shell('rm -rf /tmp/concat /var/lib/puppet/concat')
+        shell("rm -rf #{basedir} #{default.puppet['vardir']}/concat")
       end
 
       pp = <<-EOS
         include concat::setup
-        concat { '/tmp/concat/file':
+        concat { '#{basedir}/file':
           force => true,
         }
 
         concat::fragment { '1':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '1',
         }
 
         concat::fragment { '2':
-          target  => '/tmp/concat/file',
+          target  => '#{basedir}/file',
           content => '2',
         }
       EOS
@@ -239,7 +242,7 @@ describe 'replacement of' do
         expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
       end
 
-      describe file('/tmp/concat/file') do
+      describe file("#{basedir}/file") do
         it { should be_file }
         it { should contain '1' }
       end
diff --git a/spec/acceptance/symbolic_name_spec.rb b/spec/acceptance/symbolic_name_spec.rb
index b1b512f..8481768 100644
--- a/spec/acceptance/symbolic_name_spec.rb
+++ b/spec/acceptance/symbolic_name_spec.rb
@@ -1,10 +1,13 @@
 require 'spec_helper_acceptance'
 
 describe 'symbolic name' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   pp = <<-EOS
     include concat::setup
     concat { 'not_abs_path':
-      path => '/tmp/concat/file',
+      path => '#{basedir}/file',
     }
 
     concat::fragment { '1':
@@ -25,7 +28,7 @@ describe 'symbolic name' do
     expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
   end
 
-  describe file('/tmp/concat/file') do
+  describe file("#{basedir}/file") do
     it { should be_file }
     it { should contain '1' }
     it { should contain '2' }
diff --git a/spec/acceptance/warn_spec.rb b/spec/acceptance/warn_spec.rb
index e19c6b5..16947ee 100644
--- a/spec/acceptance/warn_spec.rb
+++ b/spec/acceptance/warn_spec.rb
@@ -1,21 +1,24 @@
 require 'spec_helper_acceptance'
 
 describe 'concat warn =>' do
+  let :basedir do
+    default.tmpdir('concat')
+  end
   context 'true should enable default warning message' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         warn  => true,
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '1',
         order   => '01',
       }
 
       concat::fragment { '2':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '2',
         order   => '02',
       }
@@ -26,7 +29,7 @@ describe 'concat warn =>' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain '# This file is managed by Puppet. DO NOT EDIT.' }
       it { should contain '1' }
@@ -36,18 +39,18 @@ describe 'concat warn =>' do
   context 'false should not enable default warning message' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         warn  => false,
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '1',
         order   => '01',
       }
 
       concat::fragment { '2':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '2',
         order   => '02',
       }
@@ -58,7 +61,7 @@ describe 'concat warn =>' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should_not contain '# This file is managed by Puppet. DO NOT EDIT.' }
       it { should contain '1' }
@@ -68,18 +71,18 @@ describe 'concat warn =>' do
   context '# foo should overide default warning message' do
     pp = <<-EOS
       include concat::setup
-      concat { '/tmp/concat/file':
+      concat { '#{basedir}/file':
         warn  => '# foo',
       }
 
       concat::fragment { '1':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '1',
         order   => '01',
       }
 
       concat::fragment { '2':
-        target  => '/tmp/concat/file',
+        target  => '#{basedir}/file',
         content => '2',
         order   => '02',
       }
@@ -90,7 +93,7 @@ describe 'concat warn =>' do
       expect(apply_manifest(pp, :catch_changes => true).stderr).to eq("")
     end
 
-    describe file('/tmp/concat/file') do
+    describe file("#{basedir}/file") do
       it { should be_file }
       it { should contain '# foo' }
       it { should contain '1' }