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-rw-r--r--spec/ruby/core/string/unpack/z_spec.rb21
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diff --git a/spec/ruby/core/string/unpack/z_spec.rb b/spec/ruby/core/string/unpack/z_spec.rb
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+++ b/spec/ruby/core/string/unpack/z_spec.rb
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+# -*- encoding: ascii-8bit -*-
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/classes', __FILE__)
+require File.expand_path('../shared/basic', __FILE__)
+require File.expand_path('../shared/string', __FILE__)
+
+describe "String#unpack with format 'Z'" do
+ it_behaves_like :string_unpack_basic, 'Z'
+ it_behaves_like :string_unpack_no_platform, 'Z'
+ it_behaves_like :string_unpack_string, 'Z'
+
+ it "stops decoding at NULL bytes when passed the '*' modifier" do
+ "a\x00\x00 b \x00c".unpack('Z*Z*Z*Z*').should == ["a", "", " b ", "c"]
+ end
+
+ it "decodes the number of bytes specified by the count modifier and truncates the decoded string at the first NULL byte" do
+ [ ["a\x00 \x00b c", ["a", " "]],
+ ["\x00a\x00 bc \x00", ["", "c"]]
+ ].should be_computed_by(:unpack, "Z5Z")
+ end
+end