test: add parentheses to method calls on assignment RHS

Preparation for future grammar simplification that may
require parentheses for method calls with arguments on
the right-hand side of assignments.

Co-authored-by: Claude <noreply@anthropic.com>

mrbgems/mruby-catch/test/catch.rb

@@ -1,6 +1,6 @@
 assert "return throw value" do
   val = ["val"]
-  result = catch :foo do
+  result = catch(:foo) do
     loop do
       loop do
         begin
@@ -22,7 +22,7 @@ assert "no throw" do
 end
 
 assert "no throw value" do
-  result = catch :foo do
+  result = catch(:foo) do
     throw :foo
     1
   end

mrbgems/mruby-io/test/io.rb

@@ -290,7 +290,7 @@ end
 
 assert('IO.sysopen, IO#sysread') do
   fd = IO.sysopen $mrbtest_io_rfname
-  io = IO.new fd
+  io = IO.new(fd)
   str1 = "     "
   str2 = io.sysread(5, str1)
   assert_equal $mrbtest_io_msg[0,5], str1
@@ -311,14 +311,14 @@ assert('IO.sysopen, IO#sysread') do
   io.closed?
 
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   assert_raise(IOError) { io.sysread(1) }
   io.close
 end
 
 assert('IO.sysopen, IO#syswrite') do
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   str = "abcdefg"
   len = io.syswrite(str)
   assert_equal str.size, len
@@ -358,7 +358,7 @@ end
 
 assert('IO#pos=, IO#seek') do
   fd = IO.sysopen $mrbtest_io_rfname
-  io = IO.new fd
+  io = IO.new(fd)
   def io._buf
     @buf
   end
@@ -371,7 +371,7 @@ end
 
 assert('IO#rewind') do
   fd = IO.sysopen $mrbtest_io_rfname
-  io = IO.new fd
+  io = IO.new(fd)
   assert_equal 'm', io.getc
   assert_equal 1, io.pos
   assert_equal 0, io.rewind
@@ -381,7 +381,7 @@ end
 
 assert('IO#gets') do
   fd = IO.sysopen $mrbtest_io_rfname
-  io = IO.new fd
+  io = IO.new(fd)
 
   # gets without arguments
   assert_equal $mrbtest_io_msg, io.gets, "gets without arguments"
@@ -404,14 +404,14 @@ assert('IO#gets') do
 
   # reading many-lines file.
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   io.write "0123456789" * 2 + "\na"
   assert_equal 22 + $cr, io.pos
   io.close
   assert_equal true, io.closed?
 
   fd = IO.sysopen $mrbtest_io_wfname
-  io = IO.new fd
+  io = IO.new(fd)
   line = io.gets
 
   # gets first line
@@ -430,7 +430,7 @@ end
 
 assert('IO#gets - paragraph mode') do
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   io.write "0" * 10 + "\n"
   io.write "1" * 10 + "\n\n"
   io.write "2" * 10 + "\n"
@@ -438,7 +438,7 @@ assert('IO#gets - paragraph mode') do
   io.close
 
   fd = IO.sysopen $mrbtest_io_wfname
-  io = IO.new fd
+  io = IO.new(fd)
   para1 = "#{'0' * 10}\n#{'1' * 10}\n\n"
   text1 = io.gets("")
   assert_equal para1, text1
@@ -513,14 +513,14 @@ end
 assert('IO.read') do
   # empty file
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   io.close
   assert_equal "",  IO.read($mrbtest_io_wfname)
   assert_equal nil, IO.read($mrbtest_io_wfname, 1)
 
   # one byte file
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   io.write "123"
   io.close
   assert_equal "123", IO.read($mrbtest_io_wfname)
@@ -535,7 +535,7 @@ end
 
 assert('IO#fileno') do
   fd = IO.sysopen $mrbtest_io_rfname
-  io = IO.new fd
+  io = IO.new(fd)
   assert_equal io.fileno, fd
   assert_equal io.to_i, fd
   io.close
@@ -543,7 +543,7 @@ end
 
 assert('IO#close_on_exec') do
   fd = IO.sysopen $mrbtest_io_wfname, "w"
-  io = IO.new fd, "w"
+  io = IO.new(fd, "w")
   begin
     # IO.sysopen opens a file descriptor with O_CLOEXEC flag.
     assert_true io.close_on_exec?

mrbgems/mruby-struct/test/struct.rb

@@ -197,7 +197,7 @@ assert("Struct.new generates subclass of Struct") do
 end
 
 assert 'Struct#freeze' do
-  c = Struct.new :m
+  c = Struct.new(:m)
 
   o = c.new
   o.m = :test
@@ -210,7 +210,7 @@ assert 'Struct#freeze' do
 end
 
 assert 'method visibility with Struct' do
-  c = Struct.new :r, :g, :b do
+  c = Struct.new(:r, :g, :b) do
     def good!
       "GOOD!"
     end

test/t/exception.rb

@@ -46,7 +46,7 @@ assert('NameError', '15.2.31') do
     raise NameError.new
   end
 
-  e = NameError.new "msg", "name"
+  e = NameError.new("msg", "name")
   assert_equal "msg", e.message
   assert_equal "name", e.name
 end

test/t/nomethoderror.rb

@@ -9,7 +9,7 @@ assert('NoMethodError', '15.2.32') do
 end
 
 assert('NoMethodError#args', '15.2.32.2.1') do
-  a = NoMethodError.new 'test', :test, [1, 2]
+  a = NoMethodError.new('test', :test, [1, 2])
   assert_equal [1, 2], a.args
 
   assert_nothing_raised do