Increase read timeout of FTP tests with --jit-wait

Trying to eliminate some newer random failures
http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/3016543

test/net/ftp/test_ftp.rb

@@ -1545,6 +1545,7 @@ EOF
     begin
       begin
         ftp = Net::FTP.new
+        ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
         ftp.connect(SERVER_ADDR, server.port)
         assert_equal(['LANG EN*', 'UTF8'], ftp.features)
         assert_equal("FEAT\r\n", commands.shift)
@@ -1567,6 +1568,7 @@ EOF
     begin
       begin
         ftp = Net::FTP.new
+        ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
         ftp.connect(SERVER_ADDR, server.port)
         assert_raise(Net::FTPPermError) do
           ftp.features
@@ -1592,6 +1594,7 @@ EOF
     begin
       begin
         ftp = Net::FTP.new
+        ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
         ftp.connect(SERVER_ADDR, server.port)
         ftp.option("UTF8", "ON")
         assert_equal("OPTS UTF8 ON\r\n", commands.shift)
@@ -1650,6 +1653,7 @@ EOF
     begin
       begin
         ftp = Net::FTP.new
+        ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
         ftp.connect(SERVER_ADDR, server.port)
         entry = ftp.mlst("foo")
         assert_equal("/foo", entry.pathname)
@@ -1736,6 +1740,7 @@ EOF
     begin
       begin
         ftp = Net::FTP.new
+        ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
         ftp.connect(SERVER_ADDR, server.port)
         ftp.login
         assert_match(/\AUSER /, commands.shift)
@@ -1774,6 +1779,7 @@ EOF
 
   def test_parse257
     ftp = Net::FTP.new
+    ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
     assert_equal('/foo/bar',
                  ftp.send(:parse257, '257 "/foo/bar" directory created'))
     assert_equal('/foo/bar"baz',
@@ -1912,6 +1918,7 @@ EOF
                          port: port,
                          ssl: { ca_file: CA_FILE },
                          passive: false)
+      ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
       begin
         assert_equal("AUTH TLS\r\n", commands.shift)
         assert_equal("PBSZ 0\r\n", commands.shift)
@@ -1996,6 +2003,7 @@ EOF
                          port: port,
                          ssl: { ca_file: CA_FILE },
                          passive: true)
+      ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
       begin
         assert_equal("AUTH TLS\r\n", commands.shift)
         assert_equal("PBSZ 0\r\n", commands.shift)
@@ -2071,6 +2079,7 @@ EOF
                          ssl: { ca_file: CA_FILE },
                          private_data_connection: false,
                          passive: false)
+      ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
       begin
         assert_equal("AUTH TLS\r\n", commands.shift)
         ftp.login
@@ -2140,6 +2149,7 @@ EOF
                          ssl: { ca_file: CA_FILE },
                          private_data_connection: false,
                          passive: true)
+      ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
       begin
         assert_equal("AUTH TLS\r\n", commands.shift)
         ftp.login
@@ -2332,6 +2342,7 @@ EOF
       chdir_to_tmpdir do
         begin
           ftp = Net::FTP.new
+          ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
           ftp.connect(SERVER_ADDR, server.port)
           ftp.login
           assert_match(/\AUSER /, commands.shift)
@@ -2382,7 +2393,7 @@ EOF
         File.binwrite("./|echo hello", binary_data)
         begin
           ftp = Net::FTP.new
-          ftp.read_timeout = 0.2
+          ftp.read_timeout = RubyVM::MJIT.enabled? ? 300 : 0.2 # use large timeout for --jit-wait
           ftp.connect(SERVER_ADDR, server.port)
           ftp.login
           assert_match(/\AUSER /, commands.shift)
@@ -2437,6 +2448,7 @@ EOF
         end
         begin
           ftp = Net::FTP.new
+          ftp.read_timeout *= 5 if RubyVM::MJIT.enabled? # for --jit-wait
           ftp.connect(SERVER_ADDR, server.port)
           ftp.login
           assert_match(/\AUSER /, commands.shift)