151 lines
3.9 KiB
Ruby
151 lines
3.9 KiB
Ruby
require 'spec_helper'
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describe Gitlab::Metrics do
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describe '.settings' do
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it 'returns a Hash' do
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expect(described_class.settings).to be_an_instance_of(Hash)
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end
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end
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describe '.enabled?' do
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it 'returns a boolean' do
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expect([true, false].include?(described_class.enabled?)).to eq(true)
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end
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end
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describe '.submit_metrics' do
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it 'prepares and writes the metrics to InfluxDB' do
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connection = double(:connection)
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pool = double(:pool)
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expect(pool).to receive(:with).and_yield(connection)
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expect(connection).to receive(:write_points).with(an_instance_of(Array))
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expect(Gitlab::Metrics).to receive(:pool).and_return(pool)
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described_class.submit_metrics([{ 'series' => 'kittens', 'tags' => {} }])
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end
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end
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describe '.prepare_metrics' do
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it 'returns a Hash with the keys as Symbols' do
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metrics = described_class.
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prepare_metrics([{ 'values' => {}, 'tags' => {} }])
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expect(metrics).to eq([{ values: {}, tags: {} }])
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end
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it 'escapes tag values' do
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metrics = described_class.prepare_metrics([
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{ 'values' => {}, 'tags' => { 'foo' => 'bar=' } }
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])
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expect(metrics).to eq([{ values: {}, tags: { 'foo' => 'bar\\=' } }])
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end
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it 'drops empty tags' do
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metrics = described_class.prepare_metrics([
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{ 'values' => {}, 'tags' => { 'cats' => '', 'dogs' => nil } }
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])
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expect(metrics).to eq([{ values: {}, tags: {} }])
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end
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end
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describe '.escape_value' do
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it 'escapes an equals sign' do
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expect(described_class.escape_value('foo=')).to eq('foo\\=')
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end
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it 'casts values to Strings' do
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expect(described_class.escape_value(10)).to eq('10')
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end
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end
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describe '.measure' do
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context 'without a transaction' do
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it 'returns the return value of the block' do
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val = Gitlab::Metrics.measure(:foo) { 10 }
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expect(val).to eq(10)
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end
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end
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context 'with a transaction' do
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let(:transaction) { Gitlab::Metrics::Transaction.new }
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before do
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allow(Gitlab::Metrics).to receive(:current_transaction).
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and_return(transaction)
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end
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it 'adds a metric to the current transaction' do
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expect(transaction).to receive(:increment).
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with('foo_real_time', a_kind_of(Numeric))
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expect(transaction).to receive(:increment).
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with('foo_cpu_time', a_kind_of(Numeric))
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expect(transaction).to receive(:increment).
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with('foo_call_count', 1)
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Gitlab::Metrics.measure(:foo) { 10 }
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end
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it 'returns the return value of the block' do
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val = Gitlab::Metrics.measure(:foo) { 10 }
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expect(val).to eq(10)
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end
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end
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end
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describe '.tag_transaction' do
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context 'without a transaction' do
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it 'does nothing' do
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expect_any_instance_of(Gitlab::Metrics::Transaction).
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not_to receive(:add_tag)
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Gitlab::Metrics.tag_transaction(:foo, 'bar')
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end
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end
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context 'with a transaction' do
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let(:transaction) { Gitlab::Metrics::Transaction.new }
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it 'adds the tag to the transaction' do
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expect(Gitlab::Metrics).to receive(:current_transaction).
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and_return(transaction)
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expect(transaction).to receive(:add_tag).
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with(:foo, 'bar')
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Gitlab::Metrics.tag_transaction(:foo, 'bar')
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end
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end
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end
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describe '.action=' do
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context 'without a transaction' do
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it 'does nothing' do
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expect_any_instance_of(Gitlab::Metrics::Transaction).
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not_to receive(:action=)
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Gitlab::Metrics.action = 'foo'
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end
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end
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context 'with a transaction' do
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it 'sets the action of a transaction' do
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trans = Gitlab::Metrics::Transaction.new
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expect(Gitlab::Metrics).to receive(:current_transaction).
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and_return(trans)
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expect(trans).to receive(:action=).with('foo')
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Gitlab::Metrics.action = 'foo'
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end
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end
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end
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end
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