38 lines
914 B
Ruby
38 lines
914 B
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Database::PgClass, type: :model do
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describe '#cardinality_estimate' do
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context 'when no information is available' do
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subject { described_class.new(reltuples: 0.0).cardinality_estimate }
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it 'returns nil for the estimate' do
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expect(subject).to be_nil
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end
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end
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context 'with reltuples available' do
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subject { described_class.new(reltuples: 42.0).cardinality_estimate }
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it 'returns the reltuples for the estimate' do
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expect(subject).to eq(42)
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end
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end
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end
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describe '.for_table' do
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let(:relname) { :projects }
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subject { described_class.for_table(relname) }
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it 'returns PgClass for this table' do
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expect(subject).to be_a(described_class)
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end
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it 'matches the relname' do
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expect(subject.relname).to eq(relname.to_s)
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end
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end
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end
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