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Diffstat (limited to 'spec/rubyspec/core/array/pack/u_spec.rb')
| -rw-r--r-- | spec/rubyspec/core/array/pack/u_spec.rb | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/spec/rubyspec/core/array/pack/u_spec.rb b/spec/rubyspec/core/array/pack/u_spec.rb new file mode 100644 index 0000000000..0bc78fcb88 --- /dev/null +++ b/spec/rubyspec/core/array/pack/u_spec.rb @@ -0,0 +1,128 @@ +# -*- 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/unicode', __FILE__) + +describe "Array#pack with format 'U'" do + it_behaves_like :array_pack_basic, 'U' + it_behaves_like :array_pack_basic_non_float, 'U' + it_behaves_like :array_pack_arguments, 'U' + it_behaves_like :array_pack_unicode, 'U' +end + +describe "Array#pack with format 'u'" do + it_behaves_like :array_pack_basic, 'u' + it_behaves_like :array_pack_basic_non_float, 'u' + it_behaves_like :array_pack_arguments, 'u' + + it "encodes an empty string as an empty string" do + [""].pack("u").should == "" + end + + it "appends a newline to the end of the encoded string" do + ["a"].pack("u").should == "!80``\n" + end + + it "encodes one element per directive" do + ["abc", "DEF"].pack("uu").should == "#86)C\n#1$5&\n" + end + + it "prepends the length of each segment of the input string as the first character (+32) in each line of the output" do + ["abcdefghijklm"].pack("u7").should == "&86)C9&5F\n&9VAI:FML\n!;0``\n" + end + + it "encodes 1, 2, or 3 characters in 4 output characters (uuencoding)" do + [ [["a"], "!80``\n"], + [["ab"], "\"86(`\n"], + [["abc"], "#86)C\n"], + [["abcd"], "$86)C9```\n"], + [["abcde"], "%86)C9&4`\n"], + [["abcdef"], "&86)C9&5F\n"], + [["abcdefg"], "'86)C9&5F9P``\n"], + ].should be_computed_by(:pack, "u") + end + + it "emits a newline after complete groups of count / 3 input characters when passed a count modifier" do + ["abcdefg"].pack("u3").should == "#86)C\n#9&5F\n!9P``\n" + end + + it "implicitly has a count of 45 when passed '*', 0, 1, 2 or no count modifier" do + s = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + r = "M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n%86%A86$`\n" + [ [[s], "u", r], + [[s], "u*", r], + [[s], "u0", r], + [[s], "u1", r], + [[s], "u2", r], + ].should be_computed_by(:pack) + end + + it "encodes all ascii characters" do + [ [["\x00\x01\x02\x03\x04\x05\x06"], "'``$\"`P0%!@``\n"], + [["\a\b\t\n\v\f\r"], "'!P@)\"@L,#0``\n"], + [["\x0E\x0F\x10\x11\x12\x13\x14\x15\x16"], ")\#@\\0$1(3%!46\n"], + [["\x17\x18\x19\x1a\e\x1c\x1d\x1e\x1f"], ")%Q@9&AL<'1X?\n"], + [["!\"\#$%&'()*+,-./"], "/(2(C)\"4F)R@I*BLL+2XO\n"], + [["0123456789"], "*,\#$R,S0U-C<X.0``\n"], + [[":;<=>?@"], "'.CL\\/3X_0```\n"], + [["ABCDEFGHIJKLMNOPQRSTUVWXYZ"], ":04)#1$5&1TA)2DM,34Y/4%%24U155E=865H`\n"], + [["[\\]^_`"], "&6UQ=7E]@\n"], + [["abcdefghijklmnopqrstuvwxyz"], ":86)C9&5F9VAI:FML;6YO<'%R<W1U=G=X>7H`\n"], + [["{|}~"], "$>WQ]?@``\n"], + [["\x7f\xc2\x80\xc2\x81\xc2\x82\xc2\x83"], ")?\\*`PH'\"@L*#\n"], + [["\xc2\x84\xc2\x85\xc2\x86\xc2\x87\xc2"], ")PH3\"A<*&PH?\"\n"], + [["\x88\xc2\x89\xc2\x8a\xc2\x8b\xc2\x8c"], ")B,*)PHK\"B\\*,\n"], + [["\xc2\x8d\xc2\x8e\xc2\x8f\xc2\x90\xc2"], ")PHW\"CL*/PI#\"\n"], + [["\x91\xc2\x92\xc2\x93\xc2\x94\xc2\x95"], ")D<*2PI/\"E,*5\n"], + [["\xc2\x96\xc2\x97\xc2\x98\xc2\x99\xc2"], ")PI;\"E\\*8PIG\"\n"], + [["\x9a\xc2\x9b\xc2\x9c\xc2\x9d\xc2\x9e"], ")FL*;PIS\"G<*>\n"], + [["\xc2\x9f\xc2\xa0\xc2\xa1\xc2\xa2\xc2"], ")PI_\"H,*APJ+\"\n"], + [["\xa3\xc2\xa4\xc2\xa5\xc2\xa6\xc2\xa7"], ")H\\*DPJ7\"IL*G\n"], + [["\xc2\xa8\xc2\xa9\xc2\xaa\xc2\xab\xc2"], ")PJC\"J<*JPJO\"\n"], + [["\xac\xc2\xad\xc2\xae\xc2\xaf\xc2\xb0"], ")K,*MPJ[\"K\\*P\n"], + [["\xc2\xb1\xc2\xb2\xc2\xb3\xc2\xb4\xc2"], ")PK'\"LL*SPK3\"\n"], + [["\xb5\xc2\xb6\xc2\xb7\xc2\xb8\xc2\xb9"], ")M<*VPK?\"N,*Y\n"], + [["\xc2\xba\xc2\xbb\xc2\xbc\xc2\xbd\xc2"], ")PKK\"N\\*\\PKW\"\n"], + [["\xbe\xc2\xbf\xc3\x80\xc3\x81\xc3\x82"], ")OL*_PX#\#@<.\"\n"], + [["\xc3\x83\xc3\x84\xc3\x85\xc3\x86\xc3"], ")PX/#A,.%PX;#\n"], + [["\x87\xc3\x88\xc3\x89\xc3\x8a\xc3\x8b"], ")A\\.(PXG#BL.+\n"], + [["\xc3\x8c\xc3\x8d\xc3\x8e\xc3\x8f\xc3"], ")PXS#C<..PX_#\n"], + [["\x90\xc3\x91\xc3\x92\xc3\x93\xc3\x94"], ")D,.1PY+#D\\.4\n"], + [["\xc3\x95\xc3\x96\xc3\x97\xc3\x98\xc3"], ")PY7#EL.7PYC#\n"], + [["\x99\xc3\x9a\xc3\x9b\xc3\x9c\xc3\x9d"], ")F<.:PYO#G,.=\n"], + [["\xc3\x9e\xc3\x9f\xc3\xa0\xc3\xa1\xc3"], ")PY[#G\\.@PZ'#\n"], + [["\xa2\xc3\xa3\xc3\xa4\xc3\xa5\xc3\xa6"], ")HL.CPZ3#I<.F\n"], + [["\xc3\xa7\xc3\xa8\xc3\xa9\xc3\xaa\xc3"], ")PZ?#J,.IPZK#\n"], + [["\xab\xc3\xac\xc3\xad\xc3\xae\xc3\xaf"], ")J\\.LPZW#KL.O\n"], + [["\xc3\xb0\xc3\xb1\xc3\xb2\xc3\xb3\xc3"], ")P[##L<.RP[/#\n"], + [["\xb4\xc3\xb5\xc3\xb6\xc3\xb7\xc3\xb8"], ")M,.UP[;#M\\.X\n"], + [["\xc3\xb9\xc3\xba\xc3\xbb\xc3\xbc\xc3"], ")P[G#NL.[P[S#\n"], + [["\xbd\xc3\xbe\xc3\xbf"], "%O<.^P[\\`\n"] + ].should be_computed_by(:pack, "u") + end + + it "calls #to_str to convert an object to a String" do + obj = mock("pack m string") + obj.should_receive(:to_str).and_return("abc") + [obj].pack("u").should == "#86)C\n" + end + + it "raises a TypeError if #to_str does not return a String" do + obj = mock("pack m non-string") + lambda { [obj].pack("u") }.should raise_error(TypeError) + end + + it "raises a TypeError if passed nil" do + lambda { [nil].pack("u") }.should raise_error(TypeError) + end + + it "raises a TypeError if passed an Integer" do + lambda { [0].pack("u") }.should raise_error(TypeError) + lambda { [bignum_value].pack("u") }.should raise_error(TypeError) + end + + it "sets the output string to US-ASCII encoding" do + ["abcd"].pack("u").encoding.should == Encoding::US_ASCII + end +end |