test/coverage/test_coverage.rb: Refactor coverage tests.

Add `assert_coverage` to invoke Ruby script under coverage measurement
and to compare the result with an expected value.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60003 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mame 2017-09-23 23:58:24 +00:00
Родитель 8c59fdb8d8
Коммит 6975993882
1 изменённых файлов: 117 добавлений и 125 удалений

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@ -176,31 +176,16 @@ class TestCoverage < Test::Unit::TestCase
end;
end
def test_branch_coverage_for_if_statement
def assert_coverage(code, opt, stdout)
stdout = [stdout] unless stdout.is_a?(Array)
stdout = stdout.map {|s| s.to_s }
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
File.open("test.rb", "w") do |f|
f.puts 'def foo(x)'
f.puts ' if x == 0'
f.puts ' 0'
f.puts ' else'
f.puts ' 1'
f.puts ' end'
f.puts ''
f.puts ' unless x == 0'
f.puts ' 0'
f.puts ' else'
f.puts ' 1'
f.puts ' end'
f.puts 'end'
f.puts 'foo(0)'
f.puts 'foo(0)'
f.puts 'foo(1)'
end
File.write("test.rb", code)
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:branches=>{[:if, 0, 2]=>{[:then, 1, 3]=>2, [:else, 2, 5]=>1}, [:unless, 3, 8]=>{[:else, 4, 11]=>2, [:then, 5, 9]=>1}}}"], [])
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", stdout, [])
ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
Coverage.start(branches: true)
Coverage.start(#{ opt })
tmp = Dir.pwd
require tmp + '/test.rb'
p Coverage.result[tmp + "/test.rb"]
@ -209,127 +194,134 @@ class TestCoverage < Test::Unit::TestCase
}
end
def test_branch_coverage_for_if_statement
result = {
:branches => {
[:if , 0, 2] => {[:then, 1, 3]=>2, [:else, 2, 5]=>1},
[:unless, 3, 8] => {[:else, 4, 11]=>2, [:then, 5, 9]=>1},
}
}
assert_coverage(<<-"end;", { branches: true }, result)
def foo(x)
if x == 0
0
else
1
end
unless x == 0
0
else
1
end
end
foo(0)
foo(0)
foo(1)
end;
end
def test_branch_coverage_for_while_statement
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
File.open("test.rb", "w") do |f|
f.puts 'x = 3'
f.puts 'while x > 0'
f.puts ' x -= 1'
f.puts 'end'
f.puts 'until x == 10'
f.puts ' x += 1'
f.puts 'end'
end
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:branches=>{[:while, 0, 2]=>{[:body, 1, 3]=>3}, [:until, 2, 5]=>{[:body, 3, 6]=>10}}}"], [])
ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
Coverage.start(branches: true)
tmp = Dir.pwd
require tmp + '/test.rb'
p Coverage.result[tmp + "/test.rb"]
end;
result = {
:branches => {
[:while, 0, 2] => {[:body, 1, 3]=> 3},
[:until, 2, 5] => {[:body, 3, 6]=>10},
}
}
assert_coverage(<<-"end;", { branches: true }, result)
x = 3
while x > 0
x -= 1
end
until x == 10
x += 1
end
end;
end
def test_branch_coverage_for_case_statement
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
File.open("test.rb", "w") do |f|
f.puts 'def foo(x)'
f.puts ' case x'
f.puts ' when 0'
f.puts ' 0'
f.puts ' when 1'
f.puts ' 1'
f.puts ' end'
f.puts ''
f.puts ' case'
f.puts ' when x == 0'
f.puts ' 0'
f.puts ' when x == 1'
f.puts ' 1'
f.puts ' end'
f.puts ''
f.puts ' case x'
f.puts ' when 0'
f.puts ' 0'
f.puts ' when 1'
f.puts ' 1'
f.puts ' else'
f.puts ' :other'
f.puts ' end'
f.puts ''
f.puts ' case'
f.puts ' when x == 0'
f.puts ' 0'
f.puts ' when x == 1'
f.puts ' 1'
f.puts ' else'
f.puts ' :other'
f.puts ' end'
f.puts 'end'
f.puts ''
f.puts 'foo(0)'
f.puts 'foo(0)'
f.puts 'foo(2)'
end
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:branches=>{[:case, 0, 2]=>{[:when, 1, 4]=>2, [:when, 2, 6]=>0, [:else, 3, 2]=>1}, [:case, 4, 9]=>{[:when, 5, 11]=>2, [:when, 6, 13]=>0, [:else, 7, 9]=>1}, [:case, 8, 16]=>{[:when, 9, 18]=>2, [:when, 10, 20]=>0, [:else, 11, 22]=>1}, [:case, 12, 25]=>{[:when, 13, 27]=>2, [:when, 14, 29]=>0, [:else, 15, 31]=>1}}}"], [])
ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
Coverage.start(branches: true)
tmp = Dir.pwd
require tmp + '/test.rb'
p Coverage.result[tmp + "/test.rb"]
end;
result = {
:branches => {
[:case, 0, 2] => {[:when, 1, 4]=>2, [:when, 2, 6]=>0, [:else, 3, 2]=>1},
[:case, 4, 9] => {[:when, 5, 11]=>2, [:when, 6, 13]=>0, [:else, 7, 9]=>1},
[:case, 8, 16] => {[:when, 9, 18]=>2, [:when, 10, 20]=>0, [:else, 11, 22]=>1},
[:case, 12, 25] => {[:when, 13, 27]=>2, [:when, 14, 29]=>0, [:else, 15, 31]=>1},
}
}
assert_coverage(<<-"end;", { branches: true }, result)
def foo(x)
case x
when 0
0
when 1
1
end
case
when x == 0
0
when x == 1
1
end
case x
when 0
0
when 1
1
else
:other
end
case
when x == 0
0
when x == 1
1
else
:other
end
end
foo(0)
foo(0)
foo(2)
end;
end
def test_branch_coverage_for_safe_method_invocation
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
File.open("test.rb", "w") do |f|
f.puts 'a = 10'
f.puts 'b = nil'
f.puts 'a&.abs'
f.puts 'b&.hoo'
end
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:branches=>{[:\"&.\", 0, 3]=>{[:then, 1, 3]=>1, [:else, 2, 3]=>0}, [:\"&.\", 3, 4]=>{[:then, 4, 4]=>0, [:else, 5, 4]=>1}}}"], [])
ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
Coverage.start(branches: true)
tmp = Dir.pwd
require tmp + '/test.rb'
p Coverage.result[tmp + "/test.rb"]
end;
result = {
:branches=>{
[:"&.", 0, 3] => {[:then, 1, 3]=>1, [:else, 2, 3]=>0},
[:"&.", 3, 4] => {[:then, 4, 4]=>0, [:else, 5, 4]=>1},
}
}
assert_coverage(<<-"end;", { branches: true }, result)
a = 10
b = nil
a&.abs
b&.hoo
end;
end
def test_method_coverage
Dir.mktmpdir {|tmp|
Dir.chdir(tmp) {
File.open("test.rb", "w") do |f|
f.puts 'def foo; end'
f.puts 'def bar'
f.puts 'end'
f.puts 'def baz; end'
f.puts ''
f.puts 'foo'
f.puts 'foo'
f.puts 'bar'
end
assert_in_out_err(%w[-W0 -rcoverage], <<-"end;", ["{:methods=>{[:foo, 0, 1]=>2, [:bar, 1, 2]=>1, [:baz, 2, 4]=>0}}"], [])
ENV["COVERAGE_EXPERIMENTAL_MODE"] = "true"
Coverage.start(methods: true)
tmp = Dir.pwd
require tmp + '/test.rb'
p Coverage.result[tmp + "/test.rb"]
end;
result = {
:methods => {
[:foo, 0, 1] => 2,
[:bar, 1, 2] => 1,
[:baz, 2, 4] => 0,
}
}
assert_coverage(<<-"end;", { methods: true }, result)
def foo; end
def bar
end
def baz; end
foo
foo
bar
end;
end
end