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Consolidate all cycle analytics helper methods. 

1. Move the test generation to `CycleAnalyticsHelpers::TestGeneration`

2. Move all helper methods (previously placed in each individual spec
   file) to `CycleAnalyticsHelpers`
This commit is contained in:
Timothy Andrew 2016-09-07 14:29:12 +05:30
parent 32147ddf54
commit 0a767f7b61
8 changed files with 184 additions and 264 deletions
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20
spec/models/cycle_analytics/code_spec.rb
View File

@ -6,26 +6,6 @@ describe 'CycleAnalytics#code', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_commit_referencing_issue(issue)
sha = project.repository.commit_file(user, random_git_name, "content", "Commit for ##{issue.iid}", "master", false)
commit = project.repository.commit(sha)
commit.create_cross_references!(user)
end
def create_merge_request_closing_issue(issue, message: nil)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
opts = {
title: 'Awesome merge_request',
description: message || "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
MergeRequests::CreateService.new(project, user, opts).execute
end
generate_cycle_analytics_spec(phase: :code,
data_fn: -> (context) { { issue: context.create(:issue, project: context.project) } },
start_time_conditions: [["issue mentioned in a commit", -> (context, data) { context.create_commit_referencing_issue(data[:issue]) }]],

6
spec/models/cycle_analytics/plan_spec.rb
View File

@ -6,12 +6,6 @@ describe 'CycleAnalytics#plan', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_commit_referencing_issue(issue)
sha = project.repository.commit_file(user, random_git_name, "content", "Commit for ##{issue.iid}", "master", false)
commit = project.repository.commit(sha)
commit.create_cross_references!
end
generate_cycle_analytics_spec(phase: :plan,
data_fn: -> (context) { { issue: context.create(:issue, project: context.project) } },
start_time_conditions: [["issue associated with a milestone", -> (context, data) { data[:issue].update(milestone: context.create(:milestone, project: context.project)) }],

30
spec/models/cycle_analytics/production_spec.rb
View File

@ -6,36 +6,6 @@ describe 'CycleAnalytics#production', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_merge_request_closing_issue(issue, message: nil)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
sha = project.repository.commit_file(user, random_git_name, "content", "commit message", source_branch, false)
project.repository.commit(sha)
opts = {
title: 'Awesome merge_request',
description: message || "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
MergeRequests::CreateService.new(project, user, opts).execute
end
def merge_merge_requests_closing_issue(issue)
merge_requests = issue.closed_by_merge_requests
merge_requests.each { |merge_request| MergeRequests::MergeService.new(project, user).execute(merge_request) }
end
def deploy_master(environment: 'production')
CreateDeploymentService.new(project, user, {
environment: environment,
ref: 'master',
tag: false,
sha: project.repository.commit('master').sha
}).execute
end
generate_cycle_analytics_spec(phase: :production,
data_fn: -> (context) { { issue: context.build(:issue, project: context.project) } },
start_time_conditions: [["issue is created", -> (context, data) { data[:issue].save }]],

21
spec/models/cycle_analytics/review_spec.rb
View File

@ -6,27 +6,6 @@ describe 'CycleAnalytics#review', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_merge_request_closing_issue(issue)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
sha = project.repository.commit_file(user, random_git_name, "content", "commit message", source_branch, false)
project.repository.commit(sha)
opts = {
title: 'Awesome merge_request',
description: "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
MergeRequests::CreateService.new(project, user, opts).execute
end
def merge_merge_requests_closing_issue(issue)
merge_requests = issue.closed_by_merge_requests
merge_requests.each { |merge_request| MergeRequests::MergeService.new(project, user).execute(merge_request) }
end
generate_cycle_analytics_spec(phase: :review,
data_fn: -> (context) { { issue: context.create(:issue, project: context.project) } },
start_time_conditions: [["merge request that closes issue is created", -> (context, data) { context.create_merge_request_closing_issue(data[:issue]) }]],

30
spec/models/cycle_analytics/staging_spec.rb
View File

@ -6,36 +6,6 @@ describe 'CycleAnalytics#staging', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_merge_request_closing_issue(issue, message: nil)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
sha = project.repository.commit_file(user, random_git_name, "content", "commit message", source_branch, false)
project.repository.commit(sha)
opts = {
title: 'Awesome merge_request',
description: message || "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
MergeRequests::CreateService.new(project, user, opts).execute
end
def merge_merge_requests_closing_issue(issue)
merge_requests = issue.closed_by_merge_requests
merge_requests.each { |merge_request| MergeRequests::MergeService.new(project, user).execute(merge_request) }
end
def deploy_master(environment: 'production')
CreateDeploymentService.new(project, user, {
environment: environment,
ref: 'master',
tag: false,
sha: project.repository.commit('master').sha
}).execute
end
generate_cycle_analytics_spec(phase: :staging,
data_fn: lambda do |context|
issue = context.create(:issue, project: context.project)

16
spec/models/cycle_analytics/test_spec.rb
View File

@ -6,22 +6,6 @@ describe 'CycleAnalytics#test', feature: true do
let(:user) { create(:user, :admin) }
subject { CycleAnalytics.new(project, from: from_date) }
def create_merge_request_closing_issue(issue, message: nil)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
sha = project.repository.commit_file(user, random_git_name, "content", "commit message", source_branch, false)
project.repository.commit(sha)
opts = {
title: 'Awesome merge_request',
description: message || "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
MergeRequests::CreateService.new(project, user, opts).execute
end
generate_cycle_analytics_spec(phase: :test,
data_fn: lambda do |context|
issue = context.create(:issue, project: context.project)

171
spec/support/cycle_analytics_helpers.rb
View File

@ -1,152 +1,41 @@
# rubocop:disable Metrics/AbcSize
# Note: The ABC size is large here because we have a method generating test cases with
# multiple nested contexts. This shouldn't count as a violation.
module CycleAnalyticsHelpers
# Generate the most common set of specs that all cycle analytics phases need to have.
#
# Arguments:
#
# phase: Which phase are we testing? Will call `CycleAnalytics.new.send(phase)` for the final assertion
# data_fn: A function that returns a hash, constituting initial data for the test case
# start_time_conditions: An array of `conditions`. Each condition is an tuple of `condition_name` and `condition_fn`. `condition_fn` is called with
# `context` (no lexical scope, so need to do `context.create` for factories, for example) and `data` (from the `data_fn`).
# Each `condition_fn` is expected to implement a case which consitutes the start of the given cycle analytics phase.
# end_time_conditions: An array of `conditions`. Each condition is an tuple of `condition_name` and `condition_fn`. `condition_fn` is called with
# `context` (no lexical scope, so need to do `context.create` for factories, for example) and `data` (from the `data_fn`).
# Each `condition_fn` is expected to implement a case which consitutes the end of the given cycle analytics phase.
# before_end_fn: This function is run before calling the end time conditions. Used for setup that needs to be run between the start and end conditions.
def create_commit_referencing_issue(issue)
sha = project.repository.commit_file(user, random_git_name, "content", "Commit for ##{issue.iid}", "master", false)
commit = project.repository.commit(sha)
commit.create_cross_references!(user)
end
def generate_cycle_analytics_spec(phase:, data_fn:, start_time_conditions:, end_time_conditions:, before_end_fn: nil)
combinations_of_start_time_conditions = (1..start_time_conditions.size).flat_map { |size| start_time_conditions.combination(size).to_a }
combinations_of_end_time_conditions = (1..end_time_conditions.size).flat_map { |size| end_time_conditions.combination(size).to_a }
def create_merge_request_closing_issue(issue, message: nil)
source_branch = random_git_name
project.repository.add_branch(user, source_branch, 'master')
sha = project.repository.commit_file(user, random_git_name, "content", "commit message", source_branch, false)
project.repository.commit(sha)
scenarios = combinations_of_start_time_conditions.product(combinations_of_end_time_conditions)
scenarios.each do |start_time_conditions, end_time_conditions|
context "start condition: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition: #{end_time_conditions.map(&:first).to_sentence}" do
it "finds the median of available durations between the two conditions" do
time_differences = Array.new(5) do |index|
data = data_fn[self]
start_time = (index * 10).days.from_now
end_time = start_time + rand(1..5).days
opts = {
title: 'Awesome merge_request',
description: message || "Fixes #{issue.to_reference}",
source_branch: source_branch,
target_branch: 'master'
}
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
MergeRequests::CreateService.new(project, user, opts).execute
end
# Run `before_end_fn` at the midpoint between `start_time` and `end_time`
Timecop.freeze(start_time + (end_time - start_time)/2) { before_end_fn[self, data] } if before_end_fn
def merge_merge_requests_closing_issue(issue)
merge_requests = issue.closed_by_merge_requests
merge_requests.each { |merge_request| MergeRequests::MergeService.new(project, user).execute(merge_request) }
end
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
end_time - start_time
end
median_time_difference = time_differences.sort[2]
expect(subject.send(phase)).to be_within(5).of(median_time_difference)
end
context "when the data belongs to another project" do
let(:other_project) { create(:project) }
it "returns nil" do
# Use a stub to "trick" the data/condition functions
# into using another project. This saves us from having to
# define separate data/condition functions for this particular
# test case.
allow(self).to receive(:project) { other_project }
5.times do
data = data_fn[self]
start_time = Time.now
end_time = rand(1..10).days.from_now
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
end
# Turn off the stub before checking assertions
allow(self).to receive(:project).and_call_original
expect(subject.send(phase)).to be_nil
end
end
context "when the end condition happens before the start condition" do
it 'returns nil' do
data = data_fn[self]
start_time = Time.now
end_time = start_time + rand(1..5).days
# Run `before_end_fn` at the midpoint between `start_time` and `end_time`
Timecop.freeze(start_time + (end_time - start_time)/2) { before_end_fn[self, data] } if before_end_fn
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
expect(subject.send(phase)).to be_nil
end
end
end
end
context "start condition NOT PRESENT: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition: #{end_time_conditions.map(&:first).to_sentence}" do
it "returns nil" do
5.times do
data = data_fn[self]
end_time = rand(1..10).days.from_now
end_time_conditions.each_with_index do |(condition_name, condition_fn), index|
Timecop.freeze(end_time + index.days) { condition_fn[self, data] }
end
end
expect(subject.send(phase)).to be_nil
end
end
end
context "start condition: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition NOT PRESENT: #{end_time_conditions.map(&:first).to_sentence}" do
it "returns nil" do
5.times do
data = data_fn[self]
start_time = Time.now
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
end
expect(subject.send(phase)).to be_nil
end
end
end
end
context "when none of the start / end conditions are matched" do
it "returns nil" do
expect(subject.send(phase)).to be_nil
end
end
def deploy_master(environment: 'production')
CreateDeploymentService.new(project, user, {
environment: environment,
ref: 'master',
tag: false,
sha: project.repository.commit('master').sha
}).execute
end
end
RSpec.configure do |config|
config.extend CycleAnalyticsHelpers
config.include CycleAnalyticsHelpers
end

154
spec/support/cycle_analytics_helpers/test_generation.rb Normal file
View File

@ -0,0 +1,154 @@
# rubocop:disable Metrics/AbcSize
# Note: The ABC size is large here because we have a method generating test cases with
# multiple nested contexts. This shouldn't count as a violation.
module CycleAnalyticsHelpers
module TestGeneration
# Generate the most common set of specs that all cycle analytics phases need to have.
#
# Arguments:
#
# phase: Which phase are we testing? Will call `CycleAnalytics.new.send(phase)` for the final assertion
# data_fn: A function that returns a hash, constituting initial data for the test case
# start_time_conditions: An array of `conditions`. Each condition is an tuple of `condition_name` and `condition_fn`. `condition_fn` is called with
# `context` (no lexical scope, so need to do `context.create` for factories, for example) and `data` (from the `data_fn`).
# Each `condition_fn` is expected to implement a case which consitutes the start of the given cycle analytics phase.
# end_time_conditions: An array of `conditions`. Each condition is an tuple of `condition_name` and `condition_fn`. `condition_fn` is called with
# `context` (no lexical scope, so need to do `context.create` for factories, for example) and `data` (from the `data_fn`).
# Each `condition_fn` is expected to implement a case which consitutes the end of the given cycle analytics phase.
# before_end_fn: This function is run before calling the end time conditions. Used for setup that needs to be run between the start and end conditions.
def generate_cycle_analytics_spec(phase:, data_fn:, start_time_conditions:, end_time_conditions:, before_end_fn: nil)
combinations_of_start_time_conditions = (1..start_time_conditions.size).flat_map { |size| start_time_conditions.combination(size).to_a }
combinations_of_end_time_conditions = (1..end_time_conditions.size).flat_map { |size| end_time_conditions.combination(size).to_a }
scenarios = combinations_of_start_time_conditions.product(combinations_of_end_time_conditions)
scenarios.each do |start_time_conditions, end_time_conditions|
context "start condition: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition: #{end_time_conditions.map(&:first).to_sentence}" do
it "finds the median of available durations between the two conditions" do
time_differences = Array.new(5) do |index|
data = data_fn[self]
start_time = (index * 10).days.from_now
end_time = start_time + rand(1..5).days
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
# Run `before_end_fn` at the midpoint between `start_time` and `end_time`
Timecop.freeze(start_time + (end_time - start_time)/2) { before_end_fn[self, data] } if before_end_fn
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
end_time - start_time
end
median_time_difference = time_differences.sort[2]
expect(subject.send(phase)).to be_within(5).of(median_time_difference)
end
context "when the data belongs to another project" do
let(:other_project) { create(:project) }
it "returns nil" do
# Use a stub to "trick" the data/condition functions
# into using another project. This saves us from having to
# define separate data/condition functions for this particular
# test case.
allow(self).to receive(:project) { other_project }
5.times do
data = data_fn[self]
start_time = Time.now
end_time = rand(1..10).days.from_now
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
end
# Turn off the stub before checking assertions
allow(self).to receive(:project).and_call_original
expect(subject.send(phase)).to be_nil
end
end
context "when the end condition happens before the start condition" do
it 'returns nil' do
data = data_fn[self]
start_time = Time.now
end_time = start_time + rand(1..5).days
# Run `before_end_fn` at the midpoint between `start_time` and `end_time`
Timecop.freeze(start_time + (end_time - start_time)/2) { before_end_fn[self, data] } if before_end_fn
end_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(end_time) { condition_fn[self, data] }
end
expect(subject.send(phase)).to be_nil
end
end
end
end
context "start condition NOT PRESENT: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition: #{end_time_conditions.map(&:first).to_sentence}" do
it "returns nil" do
5.times do
data = data_fn[self]
end_time = rand(1..10).days.from_now
end_time_conditions.each_with_index do |(condition_name, condition_fn), index|
Timecop.freeze(end_time + index.days) { condition_fn[self, data] }
end
end
expect(subject.send(phase)).to be_nil
end
end
end
context "start condition: #{start_time_conditions.map(&:first).to_sentence}" do
context "end condition NOT PRESENT: #{end_time_conditions.map(&:first).to_sentence}" do
it "returns nil" do
5.times do
data = data_fn[self]
start_time = Time.now
start_time_conditions.each do |condition_name, condition_fn|
Timecop.freeze(start_time) { condition_fn[self, data] }
end
end
expect(subject.send(phase)).to be_nil
end
end
end
end
context "when none of the start / end conditions are matched" do
it "returns nil" do
expect(subject.send(phase)).to be_nil
end
end
end
end
end
RSpec.configure do |config|
config.extend CycleAnalyticsHelpers::TestGeneration
end