diff options
Diffstat (limited to 'spec/rubyspec/core/kernel/sprintf_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/sprintf_spec.rb | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/sprintf_spec.rb b/spec/rubyspec/core/kernel/sprintf_spec.rb new file mode 100644 index 0000000000..984f31dc7f --- /dev/null +++ b/spec/rubyspec/core/kernel/sprintf_spec.rb @@ -0,0 +1,310 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Kernel#sprintf" do + it "is a private method" do + Kernel.should have_private_instance_method(:sprintf) + end + + it "treats nil arguments as zero-width strings in %s slots" do + sprintf("%s%d%s%s", nil, 4, 'a', 'b').should == '4ab' + end + + it "passes some tests for positive %x" do + sprintf("%x", 123).should == "7b" + sprintf("%0x", 123).should == "7b" + sprintf("% x", 123).should == " 7b" + sprintf("%+x", 123).should == "+7b" + sprintf("%+0x", 123).should == "+7b" + sprintf("%+ x", 123).should == "+7b" + sprintf("% 0x", 123).should == " 7b" + + sprintf("%#x", 123).should == "0x7b" + sprintf("%#0x", 123).should == "0x7b" + sprintf("%# x", 123).should == " 0x7b" + sprintf("%#+x", 123).should == "+0x7b" + sprintf("%#+0x", 123).should == "+0x7b" + sprintf("%#+ x", 123).should == "+0x7b" + sprintf("%# 0x", 123).should == " 0x7b" + + sprintf("%8x", 123).should == " 7b" + sprintf("%08x", 123).should == "0000007b" + sprintf("% 8x", 123).should == " 7b" + sprintf("%+8x", 123).should == " +7b" + sprintf("%+08x", 123).should == "+000007b" + sprintf("%+ 8x", 123).should == " +7b" + sprintf("% 08x", 123).should == " 000007b" + + sprintf("%#8x", 123).should == " 0x7b" + sprintf("%#08x", 123).should == "0x00007b" + sprintf("%# 8x", 123).should == " 0x7b" + sprintf("%#+8x", 123).should == " +0x7b" + sprintf("%#+08x", 123).should == "+0x0007b" + sprintf("%#+ 8x", 123).should == " +0x7b" + sprintf("%# 08x", 123).should == " 0x0007b" + + sprintf("%8.10x", 123).should == "000000007b" + sprintf("%08.10x", 123).should == "000000007b" + sprintf("% 8.10x", 123).should == " 000000007b" + sprintf("%+8.10x", 123).should == "+000000007b" + sprintf("%+08.10x", 123).should == "+000000007b" + sprintf("%+ 8.10x", 123).should == "+000000007b" + sprintf("% 08.10x", 123).should == " 000000007b" + + sprintf("%10.8x", 123).should == " 0000007b" + sprintf("%010.8x", 123).should == " 0000007b" + sprintf("% 10.8x", 123).should == " 0000007b" + sprintf("%+10.8x", 123).should == " +0000007b" + sprintf("%+010.8x", 123).should == " +0000007b" + sprintf("%+ 10.8x", 123).should == " +0000007b" + sprintf("% 010.8x", 123).should == " 0000007b" + end + + describe "with format string that contains %{} sections" do + it "substitutes values for named references" do + sprintf("%{foo}f", {foo: 1}).should == "1f" + end + + it "raises KeyError when no matching key is in second argument" do + lambda { sprintf("%{foo}f", {}) }.should raise_error(KeyError) + end + end + + describe "with format string that contains %<> sections" do + it "formats values for named references" do + sprintf("%<foo>f", {foo: 1}).should == "1.000000" + end + + it "raises KeyError when no matching key is in second argument" do + lambda { sprintf("%<foo>f", {}) }.should raise_error(KeyError) + end + + it "raises ArgumentError if missing second named argument" do + lambda { sprintf("%<key><foo>d", {key: 1}) }.should raise_error(ArgumentError) + end + end + + describe "with negative values" do + describe "with format %x" do + it "precedes the number with '..'" do + sprintf("%0x", -123).should == "..f85" + sprintf("%#0x", -123).should == "0x..f85" + sprintf("%08x", -123).should == "..ffff85" + sprintf("%#08x", -123).should == "0x..ff85" + sprintf("%8.10x", -123).should == "..ffffff85" + sprintf("%08.10x", -123).should == "..ffffff85" + sprintf("%10.8x", -123).should == " ..ffff85" + sprintf("%010.8x", -123).should == " ..ffff85" + end + end + + describe "with format %b or %B" do + it "precedes the number with '..'" do + sprintf("%.7b", -5).should == "..11011" + sprintf("%.7B", -5).should == "..11011" + sprintf("%0b", -5).should == "..1011" + end + end + end + + it "passes some tests for negative %x" do + sprintf("%x", -123).should == "..f85" + sprintf("% x", -123).should == "-7b" + sprintf("%+x", -123).should == "-7b" + sprintf("%+0x", -123).should == "-7b" + sprintf("%+ x", -123).should == "-7b" + sprintf("% 0x", -123).should == "-7b" + + sprintf("%#x", -123).should == "0x..f85" + sprintf("%# x", -123).should == "-0x7b" + sprintf("%#+x", -123).should == "-0x7b" + sprintf("%#+0x", -123).should == "-0x7b" + sprintf("%#+ x", -123).should == "-0x7b" + sprintf("%# 0x", -123).should == "-0x7b" + + sprintf("%8x", -123).should == " ..f85" + sprintf("% 8x", -123).should == " -7b" + sprintf("%+8x", -123).should == " -7b" + sprintf("%+08x", -123).should == "-000007b" + sprintf("%+ 8x", -123).should == " -7b" + sprintf("% 08x", -123).should == "-000007b" + + sprintf("%#8x", -123).should == " 0x..f85" + sprintf("%# 8x", -123).should == " -0x7b" + sprintf("%#+8x", -123).should == " -0x7b" + sprintf("%#+08x", -123).should == "-0x0007b" + sprintf("%#+ 8x", -123).should == " -0x7b" + sprintf("%# 08x", -123).should == "-0x0007b" + + sprintf("% 8.10x", -123).should == "-000000007b" + sprintf("%+8.10x", -123).should == "-000000007b" + sprintf("%+08.10x", -123).should == "-000000007b" + sprintf("%+ 8.10x", -123).should == "-000000007b" + sprintf("% 08.10x", -123).should == "-000000007b" + + sprintf("% 10.8x", -123).should == " -0000007b" + sprintf("%+10.8x", -123).should == " -0000007b" + sprintf("%+010.8x", -123).should == " -0000007b" + sprintf("%+ 10.8x", -123).should == " -0000007b" + sprintf("% 010.8x", -123).should == " -0000007b" + end + + it "passes some tests for negative %u" do + sprintf("%u", -123).should == "-123" + sprintf("%0u", -123).should == "-123" + sprintf("%#u", -123).should == "-123" + sprintf("%#0u", -123).should == "-123" + sprintf("%8u", -123).should == " -123" + sprintf("%08u", -123).should == "-0000123" + sprintf("%#8u", -123).should == " -123" + sprintf("%#08u", -123).should == "-0000123" + + sprintf("%30u", -123).should == " -123" + sprintf("%030u", -123).should == "-00000000000000000000000000123" + + sprintf("%#30u", -123).should == " -123" + sprintf("%#030u", -123).should == "-00000000000000000000000000123" + + sprintf("%24.30u", -123).should == "-000000000000000000000000000123" + sprintf("%024.30u", -123).should == "-000000000000000000000000000123" + + sprintf("%#24.30u", -123).should == "-000000000000000000000000000123" + sprintf("%#024.30u", -123).should == "-000000000000000000000000000123" + + + sprintf("%30.24u", -123).should == " -000000000000000000000123" + sprintf("%030.24u", -123).should == " -000000000000000000000123" + + sprintf("%#30.24u", -123).should == " -000000000000000000000123" + sprintf("%#030.24u", -123).should == " -000000000000000000000123" + end + + it "passes some tests for positive %u" do + sprintf("%30u", 123).should == " 123" + sprintf("%030u", 123).should == "000000000000000000000000000123" + + sprintf("%#30u", 123).should == " 123" + sprintf("%#030u", 123).should == "000000000000000000000000000123" + + sprintf("%24.30u", 123).should == "000000000000000000000000000123" + sprintf("%024.30u", 123).should == "000000000000000000000000000123" + + sprintf("%#24.30u", 123).should == "000000000000000000000000000123" + sprintf("%#024.30u", 123).should == "000000000000000000000000000123" + + sprintf("%30.24u", 123).should == " 000000000000000000000123" + sprintf("%030.24u", 123).should == " 000000000000000000000123" + + sprintf("%#30.24u", 123).should == " 000000000000000000000123" + sprintf("%#030.24u", 123).should == " 000000000000000000000123" + end + + it "passes some tests for positive %d" do + sprintf("%30d", 123).should == " 123" + sprintf("%030d", 123).should == "000000000000000000000000000123" + + sprintf("%#30d", 123).should == " 123" + sprintf("%#030d", 123).should == "000000000000000000000000000123" + + sprintf("%24.30d", 123).should == "000000000000000000000000000123" + sprintf("%024.30d", 123).should == "000000000000000000000000000123" + + sprintf("%#24.30d", 123).should == "000000000000000000000000000123" + sprintf("%#024.30d", 123).should == "000000000000000000000000000123" + + sprintf("%30.24d", 123).should == " 000000000000000000000123" + sprintf("%030.24d", 123).should == " 000000000000000000000123" + + sprintf("%#30.24d", 123).should == " 000000000000000000000123" + sprintf("%#030.24d", 123).should == " 000000000000000000000123" + end + + it "passes some tests for positive %f" do + sprintf("%30f", 123.1).should == " 123.100000" + sprintf("%030f", 123.1).should == "00000000000000000000123.100000" + + sprintf("%#30f", 123.1).should == " 123.100000" + sprintf("%#030f", 123.1).should == "00000000000000000000123.100000" + + sprintf("%10.4f", 123.1).should == " 123.1000" + sprintf("%010.4f", 123.1).should == "00123.1000" + + sprintf("%10.0f", 123.1).should == " 123" + sprintf("%010.0f", 123.1).should == "0000000123" + end + + it "passes some tests for negative %f" do + sprintf("%30f", -123.5).should == " -123.500000" + sprintf("%030f", -123.5).should == "-0000000000000000000123.500000" + + sprintf("%#30f", -123.5).should == " -123.500000" + sprintf("%#030f", -123.5).should == "-0000000000000000000123.500000" + + sprintf("%10.4f", -123.5).should == " -123.5000" + sprintf("%010.4f", -123.5).should == "-0123.5000" + + sprintf("%10.0f", -123.5).should == " -124" + sprintf("%010.0f", -123.5).should == "-000000124" + end + + it "passes some tests for infinite and nan" do + sprintf("%f", Float::INFINITY).should == "Inf" + sprintf("%f", -Float::INFINITY).should == "-Inf" + sprintf("%f", Float::NAN).should == "NaN" + + sprintf("%10f", Float::INFINITY).should == " Inf" + sprintf("%10f", -Float::INFINITY).should == " -Inf" + sprintf("%10f", Float::NAN).should == " NaN" + end + + it "passes kstephens's tests" do + sprintf("%*1$.*2$3$d", 10, 5, 1).should == " 00001" + sprintf("%b", 0).should == "0" + sprintf("%B", 0).should == "0" + sprintf("%b", -5).should == "..1011" + sprintf("%B", -5).should == "..1011" + sprintf("%+b", -5).should == "-101" + sprintf("%+b", 10).should == "+1010" + sprintf("%+b", 0).should == "+0" + sprintf("%+o", -5).should == "-5" + sprintf("%+o", 10).should == "+12" + sprintf("%+o", 0).should == "+0" + sprintf("%+d", -5).should == "-5" + sprintf("%+d", 10).should == "+10" + sprintf("%+d", 0).should == "+0" + sprintf("%+x", -15).should == "-f" + sprintf("%+x", 100).should == "+64" + sprintf("%+x", 0).should == "+0" + sprintf("%+X", -15).should == "-F" + sprintf("%+X", 100).should == "+64" + sprintf("%+X", 0).should == "+0" + sprintf("=%02X", 1).should == "=01" + sprintf("%+03d", 0).should == "+00" + sprintf("%+03d", 5).should == "+05" + sprintf("%+03d", -5).should == "-05" + sprintf("%+03d", 12).should == "+12" + sprintf("%+03d", -12).should == "-12" + sprintf("%+03d", 123).should == "+123" + sprintf("%+03d", -123).should == "-123" + end + + with_feature :encoding do + it "returns a String in the same encoding as the format String if compatible" do + format = "%.2f %4s".force_encoding(Encoding::KOI8_U) + result = sprintf(format, 1.2, "dogs") + result.encoding.should equal(Encoding::KOI8_U) + end + + it "returns a String in the argument encoding if format encoding is more restrictive" do + format = "foo %s".force_encoding(Encoding::US_ASCII) + arg = "b\303\274r".force_encoding(Encoding::UTF_8) + + result = sprintf(format, arg) + result.encoding.should equal(Encoding::UTF_8) + end + end +end + +describe "Kernel.sprintf" do + it "needs to be reviewed for spec completeness" +end |