devel/ruby-test-unit: update to 3.2.9
## 3.2.9 - 2018-12-01 {#version-3-2-9}
### Improvements
* Added support for data generation by method. `data_#{test_name}`
is called to generate data for `test_name` test.
* Added support for data matrix generation.
Example:
```ruby
data(:a, [0, 1, 2])
data(:b, [:x, :y])
def test_data(data)
end
```
This example generates the following data matrix:
* label: `"a: 0, b: :x"`, data: `{a: 0, b: :x}`
* label: `"a: 0, b: :y"`, data: `{a: 0, b: :y}`
* label: `"a: 1, b: :x"`, data: `{a: 1, b: :x}`
* label: `"a: 1, b: :y"`, data: `{a: 1, b: :y}`
* label: `"a: 2, b: :x"`, data: `{a: 2, b: :x}`
* label: `"a: 2, b: :y"`, data: `{a: 2, b: :y}`
* Added `Test::Unit::TestCase#data` that returns the current data.
* Added support for using test method that doesn't have no
parameters as data driven test.
Example:
```ruby
data("label", :value)
def test_data # Available since this release
p data # :value
end
```
* Added support for `:keep` option to `Test::Unit::TestCase.data`.
* Added support for `:group` option to
`Test::Unit::TestCase.data`. It's useful to generate multiple data
matrix groups.
```ruby
# Group1
data(:a, [0, 1, 2], group: :g1)
data(:b, [:x, :y], group: :g1)
# Group2
data(:a, [:x, :y], group: :g2)
data(:c, [-1, -2], group: :g2)
def test_data(data)
end
```
This example generates the following data matrix:
* label: `"group: :g1, a: 0, b: :x"`, data: `{a: 0, b: :x}`
* label: `"group: :g1, a: 0, b: :y"`, data: `{a: 0, b: :y}`
* label: `"group: :g1, a: 1, b: :x"`, data: `{a: 1, b: :x}`
* label: `"group: :g1, a: 1, b: :y"`, data: `{a: 1, b: :y}`
* label: `"group: :g1, a: 2, b: :x"`, data: `{a: 2, b: :x}`
* label: `"group: :g1, a: 2, b: :y"`, data: `{a: 2, b: :y}`
* label: `"group: :g2, a: :x, b: -1"`, data: `{a: :x, b: -1}`
* label: `"group: :g2, a: :x, b: -2"`, data: `{a: :x, b: -2}`
* label: `"group: :g2, a: :y, b: -1"`, data: `{a: :y, b: -1}`
* label: `"group: :g2, a: :y, b: -2"`, data: `{a: :y, b: -2}`
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