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Refactoring hotspots #225

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9 changes: 5 additions & 4 deletions lib/metric_fu/metrics/churn/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -27,10 +27,11 @@ def calculate_score(metric_ranking, item)
metric_ranking.scored?(item) ? flat_churn_score : 0
end

def generate_records(data, table)
return if data==nil
Array(data[:changes]).each do |change|
table << {
# @return [Array<Hash>]
def generate_records(data)
return [] if data==nil
Array(data[:changes]).map do |change|
{
"metric" => :churn,
"times_changed" => change[:times_changed],
"file_path" => change[:file_path]
Expand Down
10 changes: 5 additions & 5 deletions lib/metric_fu/metrics/flay/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,9 +22,9 @@ def score_strategy
:percentile
end

def generate_records(data, table)
return if data==nil
Array(data[:matches]).each do |match|
def generate_records(data)
return [] if data==nil
Array(data[:matches]).flat_map do |match|
problems = match[:reason]
matching_reason = problems.gsub(/^[0-9]+\) /,'').gsub(/\:[0-9]+/,'')
files = []
Expand All @@ -35,8 +35,8 @@ def generate_records(data, table)
files << file_path
end
files = files.uniq
files.each do |file|
table << {
files.map do |file|
{
"metric" => self.name,
"file_path" => file,
"flay_reason" => problems+" files: #{locations.join(', ')}",
Expand Down
10 changes: 5 additions & 5 deletions lib/metric_fu/metrics/flog/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,13 @@ def score_strategy
:identity
end

def generate_records(data, table)
return if data==nil
Array(data[:method_containers]).each do |method_container|
Array(method_container[:methods]).each do |entry|
def generate_records(data)
return [] if data==nil
Array(data[:method_containers]).flat_map do |method_container|
Array(method_container[:methods]).map do |entry|
file_path = entry[1][:path].sub(%r{^/},'') if entry[1][:path]
location = MetricFu::Location.for(entry.first)
table << {
{
"metric" => name,
"score" => entry[1][:score],
"file_path" => file_path,
Expand Down
4 changes: 4 additions & 0 deletions lib/metric_fu/metrics/hotspots/analysis/analyzer_tables.rb
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,10 @@ def generate_records
process_rows!
end

def update(generated_records)
table.concat generated_records
end

def tool_tables
@tool_tables ||= make_table_hash(@columns)
end
Expand Down
7 changes: 7 additions & 0 deletions lib/metric_fu/metrics/hotspots/analysis/table.rb
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,13 @@ def <<(row)
updated_key_index(record) if @make_index
end

def concat(records)
records.each do |record|
self << record
end
self
end

def each
@rows.each do |row|
yield row
Expand Down
5 changes: 2 additions & 3 deletions lib/metric_fu/metrics/hotspots/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -69,9 +69,8 @@ def score_strategy

# Transforms the data param, if non-nil, into a hash with keys:
# 'metric', etc.
# and appends the hash to the table param
# Has no return value
def generate_records(data, table)
# @return [Array<Hash>]
def generate_records(data)
not_implemented
end

Expand Down
2 changes: 1 addition & 1 deletion lib/metric_fu/metrics/hotspots/hotspot_analyzer.rb
Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ def setup(result_hash)
# to ultimately generate the hotspots
@analyzer_tables = MetricFu::AnalyzerTables.new(analyzer_columns)
tool_analyzers.each do |analyzer|
analyzer.generate_records(result_hash[analyzer.name], @analyzer_tables.table)
@analyzer_tables.update analyzer.generate_records(result_hash[analyzer.name])
end
@analyzer_tables.generate_records
@rankings = MetricFu::HotspotRankings.new(@analyzer_tables.tool_tables)
Expand Down
12 changes: 6 additions & 6 deletions lib/metric_fu/metrics/rcov/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,21 +22,21 @@ def score_strategy
:identity
end

def generate_records(data, table)
return if data==nil
data.each do |file_name, info|
def generate_records(data)
return [] if data==nil
data.flat_map do |file_name, info|
next if (file_name == :global_percent_run) || (info[:methods].nil?)
info[:methods].each do |method_name, percentage_uncovered|
info[:methods].map do |method_name, percentage_uncovered|
location = MetricFu::Location.for(method_name)
table << {
{
"metric" => :rcov,
'file_path' => file_name,
'class_name' => location.class_name,
"method_name" => location.method_name,
"percentage_uncovered" => percentage_uncovered
}
end
end
end.compact
end

def present_group(group)
Expand Down
10 changes: 5 additions & 5 deletions lib/metric_fu/metrics/reek/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -26,15 +26,15 @@ def score_strategy
:percentile
end

def generate_records(data, table)
return if data==nil
data[:matches].each do |match|
def generate_records(data)
return [] if data==nil
data[:matches].flat_map do |match|
file_path = match[:file_path]
match[:code_smells].each do |smell|
match[:code_smells].map do |smell|
location = MetricFu::Location.for(smell[:method])
smell_type = smell[:type]
message = smell[:message]
table << {
{
"metric" => name, # important
"file_path" => file_path, # important
# NOTE: ReekHotspot is currently different than other hotspots with regard
Expand Down
8 changes: 4 additions & 4 deletions lib/metric_fu/metrics/roodi/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,10 +22,10 @@ def score_strategy
:percentile
end

def generate_records(data, table)
return if data==nil
Array(data[:problems]).each do |problem|
table << {
def generate_records(data)
return [] if data==nil
Array(data[:problems]).map do |problem|
{
"metric" => name,
"problems" => problem[:problem],
"file_path" => problem[:file]
Expand Down
12 changes: 6 additions & 6 deletions lib/metric_fu/metrics/saikuro/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,16 +22,16 @@ def score_strategy
:identity
end

def generate_records(data, table)
return if data == nil
data[:files].each do |file|
def generate_records(data)
return [] if data == nil
data[:files].flat_map do |file|
file_name = file[:filename]
file[:classes].each do |klass|
file[:classes].flat_map do |klass|
location = MetricFu::Location.for(klass[:class_name])
offending_class = location.class_name
klass[:methods].each do |match|
klass[:methods].map do |match|
offending_method = MetricFu::Location.for(match[:name]).method_name
table << {
{
"metric" => name,
"lines" => match[:lines],
"complexity" => match[:complexity],
Expand Down
10 changes: 5 additions & 5 deletions lib/metric_fu/metrics/stats/hotspot.rb
Original file line number Diff line number Diff line change
Expand Up @@ -22,16 +22,16 @@ def score_strategy
:absent
end

def generate_records(data, table)
return if data == nil
data.each do |key, value|
def generate_records(data)
return [] if data == nil
data.map do |key, value|
next if value.kind_of?(Array)
table << {
{
"metric" => name,
"stat_name" => key,
"stat_value" => value
}
end
end.compact
end

end
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ def analyzed_problems(result_hash)

analyzer_tables = MetricFu::AnalyzerTables.new(analyzer_columns)
tool_analyzers.each do |analyzer|
analyzer.generate_records(result_hash[analyzer.name], analyzer_tables.table)
analyzer_tables.update analyzer.generate_records(result_hash[analyzer.name])
end
analyzer_tables.generate_records
rankings = MetricFu::HotspotRankings.new(analyzer_tables.tool_tables)
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ def analyzer_table(result_hash)

analyzer_tables = MetricFu::AnalyzerTables.new(analyzer_columns)
tool_analyzers.each do |analyzer|
analyzer.generate_records(result_hash[analyzer.name], analyzer_tables.table)
analyzer_tables.update analyzer.generate_records(result_hash[analyzer.name])
end
analyzer_tables.generate_records
rankings = MetricFu::HotspotRankings.new(analyzer_tables.tool_tables)
Expand Down
4 changes: 2 additions & 2 deletions spec/metric_fu/metrics/hotspots/analysis/rankings_spec.rb
Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@ def rankings(result_hash)
analyzer_columns = common_columns + granularities + tool_analyzers.map{|analyzer| analyzer.columns}.flatten

analyzer_tables = MetricFu::AnalyzerTables.new(analyzer_columns)
tool_analyzers.each do |analyzer|
analyzer.generate_records(result_hash[analyzer.name], analyzer_tables.table)
tool_analyzers.each do |hotspot|
analyzer_tables.update hotspot.generate_records(result_hash[hotspot.name])
end
analyzer_tables.generate_records
rankings = MetricFu::HotspotRankings.new(analyzer_tables.tool_tables)
Expand Down
156 changes: 156 additions & 0 deletions spec/metric_fu/metrics/reek/hotspot_spec.rb
Original file line number Diff line number Diff line change
@@ -0,0 +1,156 @@
require 'spec_helper'
MetricFu.metrics_require { 'hotspots/metric' }
MetricFu.metrics_require { 'hotspots/hotspot' }
MetricFu.metrics_require { 'hotspots/analysis/record' }
MetricFu.metrics_require { 'reek/hotspot' }
describe MetricFu::ReekHotspot do
let(:data) do
{
"metric"=>:reek,
"file_path"=>"lib/metric_fu.rb",
"reek__message"=>"doesn't depend on instance state",
"reek__type_name"=>"UtilityFunction",
"reek__value"=>nil,
"reek__value_description"=>nil,
"reek__comparable_message"=>"doesn't depend on instance state",
"class_name"=>"MetricFu",
"method_name"=>"MetricFu#current_time"
}
end
let(:row) do MetricFu::Record.new(data, :unused_variable) end
# TODO: This naming could be more clear
let(:analyzer) do MetricFu::ReekHotspot.new end
let(:tool_table) do
table = MetricFu::Table.new(:column_names => analyzer.columns)
table << row
table
end
let(:tool_tables) do {:reek => tool_table} end
let(:metric_violations) do tool_tables[analyzer.name] end

it "ranks and calculates reek hotspot scores" do
granularity = 'file_path'
metric_ranking = build_metric_ranking(metric_ranking, granularity)
test_metric_ranking(metric_ranking, granularity)

items_to_score = reek_items_to_score
master_ranking = build_master_ranking(items_to_score)
test_calculate_score(master_ranking, items_to_score)
end

def build_metric_ranking(metric_ranking, granularity)
metric_ranking = MetricFu::Ranking.new
metric_violations.each do |row|
location = row[granularity]
expect(location).to eq(data["file_path"])
metric_ranking[location] ||= []
mapped_row = analyzer.map(row)
expect(mapped_row).to eq(1) # present
metric_ranking[location] << mapped_row
end
metric_ranking
end
def test_metric_ranking(metric_ranking, granularity)
metric_ranking.each do |item, scores|
expect(item).to eq(data["file_path"])
expect(scores).to eq([1])
reduced_score = analyzer.reduce(scores)
expect(reduced_score).to eq(1) # sum
metric_ranking[item] = reduced_score
end
end
def build_master_ranking(items_to_score)
master_ranking = MetricFu::Ranking.new
items_to_score.each do |location, score|
master_ranking[location] = score
end
master_ranking
end
def test_calculate_score(master_ranking, items_to_score)
item = 'lib/metric_fu.rb'
sorted_items = master_ranking.send(:sorted_items)
index = sorted_items.index(item)
expect(index).to eq(21)
length = items_to_score.size
expect(length).to eq(45)

adjusted_index = index + 1
worse_item_count = length - adjusted_index

score = Float(worse_item_count) / length

expect(analyzer.score(master_ranking, item)).to eq(score) # percentile
expect(master_ranking.percentile(item)).to eq(score)
expect(MetricFu::HotspotScoringStrategies.percentile(master_ranking, item)).to eq(score)
end

# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:58:in `calculate_metric_scores'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:46:in `calculate_score_for_granularity'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:41:in `block in calculate_scores_by_granularities'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:40:in `each'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:40:in `calculate_scores_by_granularities'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:18:in `block in calculate_scores'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:17:in `each'
# lib/metric_fu/metrics/hotspots/analysis/rankings.rb:17:in `calculate_scores'
# lib/metric_fu/metrics/hotspots/hotspot_analyzer.rb:57:in `setup'
# lib/metric_fu/metrics/hotspots/hotspot_analyzer.rb:25:in `initialize'
# lib/metric_fu/metrics/hotspots/generator.rb:22:in `new'
# lib/metric_fu/metrics/hotspots/generator.rb:22:in `analyze'
# lib/metric_fu/generator.rb:107:in `generate_result'
# lib/metric_fu/reporting/result.rb:50:in `add'
# lib/metric_fu/run.rb:19:in `block in measure'
# lib/metric_fu/run.rb:17:in `each'
# lib/metric_fu/run.rb:17:in `measure'
# lib/metric_fu/run.rb:8:in `run'
# lib/metric_fu/cli/helper.rb:18:in `run'
# lib/metric_fu/cli/client.rb:18:in `run'
def reek_items_to_score
{
"lib/metric_fu.rb"=>4,
"lib/metric_fu/cli/client.rb"=>1,
"lib/metric_fu/cli/helper.rb"=>5,
"lib/metric_fu/cli/parser.rb"=>33,
"lib/metric_fu/configuration.rb"=>4,
"lib/metric_fu/constantize.rb"=>8,
"lib/metric_fu/data_structures/line_numbers.rb"=>11,
"lib/metric_fu/data_structures/location.rb"=>7,
"lib/metric_fu/data_structures/sexp_node.rb"=>5,
"lib/metric_fu/environment.rb"=>4,
"lib/metric_fu/errors/analysis_error.rb"=>1,
"lib/metric_fu/formatter.rb"=>1,
"lib/metric_fu/formatter/html.rb"=>11,
"lib/metric_fu/formatter/syntax.rb"=>2,
"lib/metric_fu/formatter/yaml.rb"=>1,
"lib/metric_fu/gem_run.rb"=>3,
"lib/metric_fu/gem_version.rb"=>5,
"lib/metric_fu/generator.rb"=>7,
"lib/metric_fu/io.rb"=>5,
"lib/metric_fu/loader.rb"=>6,
"lib/metric_fu/logger.rb"=>4,
"lib/metric_fu/logging/mf_debugger.rb"=>2,
"lib/metric_fu/metric.rb"=>7,
"lib/metric_fu/metrics/cane/generator.rb"=>6,
"lib/metric_fu/metrics/cane/grapher.rb"=>2,
"lib/metric_fu/metrics/cane/metric.rb"=>2,
"lib/metric_fu/metrics/cane/violations.rb"=>7,
"lib/metric_fu/metrics/churn/generator.rb"=>3,
"lib/metric_fu/metrics/churn/hotspot.rb"=>9,
"lib/metric_fu/metrics/churn/metric.rb"=>1,
"lib/metric_fu/metrics/flay/generator.rb"=>4,
"lib/metric_fu/metrics/flay/grapher.rb"=>2,
"lib/metric_fu/metrics/flay/hotspot.rb"=>5,
"lib/metric_fu/metrics/flay/metric.rb"=>1,
"lib/metric_fu/metrics/flog/generator.rb"=>11,
"lib/metric_fu/metrics/flog/grapher.rb"=>11,
"lib/metric_fu/metrics/flog/hotspot.rb"=>8,
"lib/metric_fu/metrics/flog/metric.rb"=>1,
"lib/metric_fu/metrics/hotspots/analysis/analyzed_problems.rb"=>1,
"lib/metric_fu/metrics/hotspots/analysis/analyzer_tables.rb"=>8,
"lib/metric_fu/metrics/hotspots/analysis/grouping.rb"=>1,
"lib/metric_fu/metrics/hotspots/analysis/groupings.rb"=>1,
"lib/metric_fu/metrics/hotspots/analysis/problems.rb"=>2,
"lib/metric_fu/metrics/hotspots/analysis/ranked_problem_location.rb"=>5,
"lib/metric_fu/metrics/hotspots/analysis/ranking.rb"=>1,
}
end
end