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[cache] cache_metadata_size

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This commit is contained in:
Joe Thornber
2014-01-15 15:52:05 +00:00
parent c24fa93f2c
commit cbbdfc37da
5 changed files with 272 additions and 0 deletions
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102
features/cache_metadata_size.feature Normal file
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@ -0,0 +1,102 @@
Feature: cache_metadata_size
Scenario: print version (-V flag)
When I run cache_metadata_size with -V
Then it should pass with version
Scenario: print version (--version flag)
When I run cache_metadata_size with --version
Then it should pass with version
Scenario: print help (-h)
When I run cache_metadata_size with -h
Then it should pass
And the output should contain exactly:
"""
Usage: cache_metadata_size [options]
Options:
{-h|--help}
{-V|--version}
{--block-size <sectors>}
{--device-size <sectors>}
{--nr-blocks <natural>}
These all relate to the size of the fast device (eg, SSD), rather
than the whole cached device.
"""
Scenario: print help (--help)
When I run cache_metadata_size with -h
Then it should pass
And the output should contain exactly:
"""
Usage: cache_metadata_size [options]
Options:
{-h|--help}
{-V|--version}
{--block-size <sectors>}
{--device-size <sectors>}
{--nr-blocks <natural>}
These all relate to the size of the fast device (eg, SSD), rather
than the whole cached device.
"""
Scenario: No arguments specified causes fail
When I run cache_metadata_size
Then it should fail with:
"""
Please specify either --device-size and --block-size, or --nr-blocks.
"""
Scenario: Just --device-size causes fail
When I run cache_metadata_size with --device-size 102400
Then it should fail with:
"""
If you specify --device-size you must also give --block-size.
"""
Scenario: Just --block-size causes fail
When I run cache_metadata_size with --block-size 64
Then it should fail with:
"""
Please specify either --device-size and --block-size, or --nr-blocks.
"""
Scenario: Contradictory info causes fail
When I run cache_metadata_size with --device-size 102400 --block-size 1000 --nr-blocks 6
Then it should fail with:
"""
Contradictory arguments given, --nr-blocks doesn't match the --device-size and --block-size.
"""
Scenario: All args agreeing succeeds
When I run cache_metadata_size with --device-size 102400 --block-size 100 --nr-blocks 1024
Then it should pass with:
"""
8248 sectors
"""
Scenario: Just --nr-blocks succeeds
When I run cache_metadata_size with --nr-blocks 1024
Then it should pass with:
"""
8248 sectors
"""
Scenario: Just --device-size and --block-size succeeds
When I run cache_metadata_size with --device-size 102400 --block-size 100
Then it should pass with:
"""
8248 sectors
"""
Scenario: A big configuration passes
When I run cache_metadata_size with --nr-blocks 67108864
Then it should pass with:
"""
3678208
"""

8
features/step_definitions/cache_steps.rb
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@ -69,6 +69,14 @@ When(/^I run cache_dump with (.*?)$/) do |opts|
run_simple("cache_dump #{opts}", false)
end
When(/^I run cache_metadata_size with (.*?)$/) do |opts|
run_simple("cache_metadata_size #{opts}", false)
end
When(/^I run cache_metadata_size$/) do
run_simple("cache_metadata_size", false)
end
Given(/^valid cache metadata$/) do
in_current_dir do
system("cache_xml create --nr-cache-blocks uniform[1000..5000] --nr-mappings uniform[500..1000] > #{xml_file}")