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authorsinisterchipmunk <sinisterchipmunk@gmail.com>2020-01-22 20:37:23 -0500
committerNobuyoshi Nakada <nobu@ruby-lang.org>2020-05-23 14:29:16 +0900
commit77cc13943cd9ec908d75133d7ac0b89c9ab57deb (patch)
tree43dcfca55a0d6c956eadb378780a987d61a5c849 /test/fiddle/test_import.rb
parent4a835621ced099316850a16f2a13534dea62a0b8 (diff)
[ruby/fiddle] Fix assignment to array within struct (#26)
* Allow access to a struct's underlying memory with `struct[offset, length]`. https://github.com/ruby/fiddle/commit/24083690a6
Notes
Notes: Merged: https://github.com/ruby/ruby/pull/3068
Diffstat (limited to 'test/fiddle/test_import.rb')
-rw-r--r--test/fiddle/test_import.rb14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/fiddle/test_import.rb b/test/fiddle/test_import.rb
index 778327b4b2..867f6960ee 100644
--- a/test/fiddle/test_import.rb
+++ b/test/fiddle/test_import.rb
@@ -129,6 +129,20 @@ module Fiddle
assert_equal([0,1,2], ary.value)
end
+ def test_struct_array_assignment()
+ instance = Fiddle::Importer.struct(["unsigned int stages[3]"]).malloc
+ instance.stages[0] = 1024
+ instance.stages[1] = 10
+ instance.stages[2] = 100
+ assert_equal 1024, instance.stages[0]
+ assert_equal 10, instance.stages[1]
+ assert_equal 100, instance.stages[2]
+ assert_equal [1024, 10, 100].pack(Fiddle::PackInfo::PACK_MAP[-Fiddle::TYPE_INT] * 3),
+ instance.to_ptr[0, 3 * Fiddle::SIZEOF_INT]
+ assert_raise(IndexError) { instance.stages[-1] = 5 }
+ assert_raise(IndexError) { instance.stages[3] = 5 }
+ end
+
def test_struct()
s = LIBC::MyStruct.malloc()
s.num = [0,1,2,3,4]