Fence off Network IO with NO_NETWORK_TESTING

t/Plack-Handler/standalone.t

@@ -1,3 +1,9 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
 use strict;
 use warnings;
 use Test::More;

t/Plack-Loader/shotgun.t

@@ -1,3 +1,9 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
 use strict;
 use warnings;
 use Test::More;

t/Plack-Middleware/component-leak.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 package MyComponent;
 use strict;
 use warnings;

t/Plack-Middleware/error_document_streaming_app.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use strict;
 use warnings;
 use FindBin;

t/Plack-Middleware/stacktrace/sigdie.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use strict;
 use warnings;
 use Test::More;

t/Plack-Middleware/stacktrace/utf8.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use strict;
 use warnings;
 use Test::More;

t/Plack-Middleware/urlmap_ports.t

@@ -1,3 +1,9 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
 use strict;
 use Test::More;
 use Plack::App::URLMap;

t/Plack-Test/2args.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use Plack::Test;
 use Test::More;
 use HTTP::Request::Common;

t/Plack-Test/hello_server.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use Test::More;
 use Plack::Test;
 

t/Plack-Util/response_cb.t

@@ -1,3 +1,10 @@
+BEGIN {
+  if ( $ENV{NO_NETWORK_TESTING} ) {
+    print '1..0 # SKIP Network connections required for this test';
+    exit;
+  }
+}
+
 use strict;
 use warnings;
 use Plack::Util;