68 lines
1.8 KiB
Ruby
68 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe PerformanceMonitoring::PrometheusMetric do
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let(:json_content) do
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{
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"id" => "metric_of_ages",
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"unit" => "count",
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"label" => "Metric of Ages",
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"query_range" => "http_requests_total"
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}
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end
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describe '.from_json' do
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subject { described_class.from_json(json_content) }
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it 'creates a PrometheusMetric object' do
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expect(subject).to be_a PerformanceMonitoring::PrometheusMetric
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expect(subject.id).to eq(json_content['id'])
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expect(subject.unit).to eq(json_content['unit'])
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expect(subject.label).to eq(json_content['label'])
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expect(subject.query_range).to eq(json_content['query_range'])
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end
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describe 'validations' do
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context 'json_content is not a hash' do
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let(:json_content) { nil }
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subject { described_class.from_json(json_content) }
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it { expect { subject }.to raise_error(ActiveModel::ValidationError) }
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end
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context 'when unit is missing' do
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before do
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json_content['unit'] = nil
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end
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subject { described_class.from_json(json_content) }
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it { expect { subject }.to raise_error(ActiveModel::ValidationError) }
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end
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context 'when query and query_range is missing' do
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before do
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json_content['query_range'] = nil
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end
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subject { described_class.from_json(json_content) }
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it { expect { subject }.to raise_error(ActiveModel::ValidationError) }
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end
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context 'when query_range is missing but query is available' do
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before do
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json_content['query_range'] = nil
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json_content['query'] = 'http_requests_total'
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end
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subject { described_class.from_json(json_content) }
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it { is_expected.to be_valid }
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end
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end
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end
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end
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