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View File Name : cdesc-Coverage.ri

U:RDoc::NormalModule[iI"
Coverage:ET@0o:RDoc::Markup::Document:@parts[o;;[6o:RDoc::Markup::Paragraph;[I">Coverage provides coverage measurement feature for Ruby. ;TI"JThis feature is experimental, so these APIs may be changed in future.;To:RDoc::Markup::BlankLine�S:RDoc::Markup::Heading:
leveli:	textI"
Usage;T@o:RDoc::Markup::List:
@type:NUMBER:@items[	o:RDoc::Markup::ListItem:@label0;[o;	;[I"require "coverage";To;;0;[o;	;[I"do Coverage.start;To;;0;[o;	;[I"%require or load Ruby source file;To;;0;[o;	;[	I"JCoverage.result will return a hash that contains filename as key and ;TI"Icoverage array as value. A coverage array gives, for each line, the ;TI"Fnumber of line execution by the interpreter. A +nil+ value means ;TI"Fcoverage is disabled for this line (lines like +else+ and +end+).;T@S;;i;
I"
Examples;T@o:RDoc::Markup::Verbatim;[I"[foo.rb]
;TI"s = 0
;TI"10.times do |x|
;TI"  s += x
;TI"	end
;TI"
;TI"if s == 45
;TI"
  p :ok
;TI"
else
;TI"
  p :ng
;TI"	end
;TI"[EOF]
;TI"
;TI"require "coverage"
;TI"Coverage.start
;TI"require "foo.rb"
;TI"Pp Coverage.result  #=> {"foo.rb"=>[1, 1, 10, nil, nil, 1, 1, nil, 0, nil]}
;T:@format0S;;i;
I"Lines Coverage;T@o;	;[I"RIf a coverage mode is not explicitly specified when starting coverage, lines ;TI"Rcoverage is what will run. It reports the number of line executions for each ;TI"
line.;T@o;;[	I"require "coverage"
;TI"!Coverage.start(lines: true)
;TI"require "foo.rb"
;TI"Yp Coverage.result #=> {"foo.rb"=>{:lines=>[1, 1, 10, nil, nil, 1, 1, nil, 0, nil]}}
;T;0o;	;[
I"RThe value of the lines coverage result is an array containing how many times ;TI"Peach line was executed. Order in this array is important. For example, the ;TI"Qfirst item in this array, at index 0, reports how many times line 1 of this ;TI"Nfile was executed while coverage was run (which, in this example, is one ;TI"time).;T@o;	;[I"OA +nil+ value means coverage is disabled for this line (lines like +else+ ;TI"and +end+).;T@S;;i;
I"Oneshot Lines Coverage;T@o;	;[I"KOneshot lines coverage tracks and reports on the executed lines while ;TI"Qcoverage is running. It will not report how many times a line was executed, ;TI"only that it was executed.;T@o;;[	I"require "coverage"
;TI")Coverage.start(oneshot_lines: true)
;TI"require "foo.rb"
;TI"Ip Coverage.result #=> {"foo.rb"=>{:oneshot_lines=>[1, 2, 3, 6, 7]}}
;T;0o;	;[I"OThe value of the oneshot lines coverage result is an array containing the ;TI"%line numbers that were executed.;T@S;;i;
I"Branches Coverage;T@o;	;[I"RBranches coverage reports how many times each branch within each conditional ;TI"was executed.;T@o;;[	I"require "coverage"
;TI"$Coverage.start(branches: true)
;TI"require "foo.rb"
;TI"p Coverage.result #=> {"foo.rb"=>{:branches=>{[:if, 0, 6, 0, 10, 3]=>{[:then, 1, 7, 2, 7, 7]=>1, [:else, 2, 9, 2, 9, 7]=>0}}}}
;T;0o;	;[	I"QEach entry within the branches hash is a conditional, the value of which is ;TI"Oanother hash where each entry is a branch in that conditional. The values ;TI"Sare the number of times the method was executed, and the keys are identifying ;TI""information about the branch.;T@o;	;[I"QThe information that makes up each key identifying branches or conditionals ;TI"*is the following, from left to right:;T@o;;;;[o;;0;[o;	;[I"3A label for the type of branch or conditional.;To;;0;[o;	;[I"A unique identifier.;To;;0;[o;	;[I"8The starting line number it appears on in the file.;To;;0;[o;	;[I":The starting column number it appears on in the file.;To;;0;[o;	;[I"6The ending line number it appears on in the file.;To;;0;[o;	;[I"8The ending column number it appears on in the file.;T@S;;i;
I"Methods Coverage;T@o;	;[I"FMethods coverage reports how many times each method was executed.;T@o;;[I"[foo_method.rb]
;TI"class Greeter
;TI"  def greet
;TI"    "welcome!"
;TI"  end
;TI"	end
;TI"
;TI"def hello
;TI"  "Hi"
;TI"	end
;TI"
;TI"
hello()
;TI"Greeter.new.greet()
;TI"[EOF]
;TI"
;TI"require "coverage"
;TI"#Coverage.start(methods: true)
;TI"require "foo_method.rb"
;TI"~p Coverage.result #=> {"foo_method.rb"=>{:methods=>{[Object, :hello, 7, 0, 9, 3]=>1, [Greeter, :greet, 2, 2, 4, 5]=>1}}}
;T;0o;	;[I"PEach entry within the methods hash represents a method. The values in this ;TI"Lhash are the number of times the method was executed, and the keys are ;TI".identifying information about the method.;T@o;	;[I"SThe information that makes up each key identifying a method is the following, ;TI"from left to right:;T@o;;;;[o;;0;[o;	;[I"The class.;To;;0;[o;	;[I"The method name.;To;;0;[o;	;[I"@The starting line number the method appears on in the file.;To;;0;[o;	;[I"BThe starting column number the method appears on in the file.;To;;0;[o;	;[I">The ending line number the method appears on in the file.;To;;0;[o;	;[I"@The ending column number the method appears on in the file.;T@S;;i;
I"All Coverage Modes;T@o;	;[
I"OYou can also run all modes of coverage simultaneously with this shortcut. ;TI"NNote that running all coverage modes does not run both lines and oneshot ;TI"Olines. Those modes cannot be run simultaneously. Lines coverage is run in ;TI"Pthis case, because you can still use it to determine whether or not a line ;TI"was executed.;T@o;;[	I"require "coverage"
;TI"Coverage.start(:all)
;TI"require "foo.rb"
;TI"�p Coverage.result #=> {"foo.rb"=>{:lines=>[1, 1, 10, nil, nil, 1, 1, nil, 0, nil], :branches=>{[:if, 0, 6, 0, 10, 3]=>{[:then, 1, 7, 2, 7, 7]=>1, [:else, 2, 9, 2, 9, 7]=>0}}, :methods=>{}}};T;0:
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class;T[[:public[
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running?;T@�[I"
start;T@�[:protected[�[:private[�[I"
instance;T[[;[�[;[�[;[�[�[U:RDoc::Context::Section[i�0o;;[�;0;0[@�@�@�cRDoc::TopLevel