use binwrite in tests

3 files changed, 3 insertions, 5 deletions

diff --git a/Library/Formula/yara.rb b/Library/Formula/yara.rb
index 0678a8676..cb04a97d3 100644
--- a/Library/Formula/yara.rb
+++ b/Library/Formula/yara.rb
@@ -39,9 +39,7 @@ class Yara < Formula
     EOS
 
     program = testpath/"zero.prg"
-    File.open(program, "wb") do |f|
-      f.write [0x00, 0xc0, 0xa9, 0x30, 0x4c, 0xd2, 0xff].pack("C*")
-    end
+    program.binwrite [0x00, 0xc0, 0xa9, 0x30, 0x4c, 0xd2, 0xff].pack("C*")
 
     out = `#{bin}/yara #{rules} #{program}`
     assert_equal "chrout #{program}\n", out
diff --git a/Library/Formula/z80dasm.rb b/Library/Formula/z80dasm.rb
index 3721ca3aa..b08455260 100644
--- a/Library/Formula/z80dasm.rb
+++ b/Library/Formula/z80dasm.rb
@@ -12,7 +12,7 @@ class Z80dasm < Formula
 
   test do
     path = testpath/"a.bin"
-    path.open("wb") { |f| f.write [0xcd, 0x34, 0x12].pack("c*") }
+    path.binwrite [0xcd, 0x34, 0x12].pack("c*")
 
     output = `#{bin}/z80dasm #{path}`.strip
     assert output.include?("call 01234h")
diff --git a/Library/Formula/zxcc.rb b/Library/Formula/zxcc.rb
index 0a03bf3e5..446a3dc9d 100644
--- a/Library/Formula/zxcc.rb
+++ b/Library/Formula/zxcc.rb
@@ -23,7 +23,7 @@ class Zxcc < Formula
     ].pack("c*")
 
     path = testpath/"hello.com"
-    path.open("wb") { |f| f.write code }
+    path.binwrite code
 
     output = `#{bin}/zxcc #{path}`.strip
     assert_equal "Hello", output