82 lines
2.1 KiB
Ruby
82 lines
2.1 KiB
Ruby
require "rails_helper"
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RSpec.describe Languages::Detection, type: :service do
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subject(:language_detection) { described_class.call(text) }
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describe "codes" do
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it "returns an array including a couple of popular languages" do
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expect(described_class.codes).to include("en", "es", "fr")
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end
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end
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context "when the text is clearly identifiable as English" do
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let(:text) { "This is clearly English text." }
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it "returns en" do
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expect(language_detection).to eq(:en)
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end
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end
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context "when the text is clearly identifiable as Spanish" do
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let(:text) { "Esto es claramente un texto en español." }
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it "returns es" do
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expect(language_detection).to eq(:es)
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end
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end
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context "when probability and reliability vary" do
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let(:text) { "This is some dummy text." }
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let(:identifier) { instance_double(CLD3::NNetLanguageIdentifier) }
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before do
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allow(CLD3::NNetLanguageIdentifier).to receive(:new).and_return(identifier)
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allow(identifier).to receive(:find_language).with(text).and_return(language_outcome)
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end
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context "when probability is low" do
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let(:language_outcome) do
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instance_double(
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CLD3::NNetLanguageIdentifier::Result,
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language: :es,
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probability: 0.4,
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reliable?: true,
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)
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end
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it "returns nil" do
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expect(described_class.call(text)).to be_nil
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end
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end
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context "when reliability is low" do
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let(:language_outcome) do
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instance_double(
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CLD3::NNetLanguageIdentifier::Result,
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language: :es,
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probability: 0.9,
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reliable?: false,
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)
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end
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it "returns nil" do
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expect(described_class.call(text)).to be_nil
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end
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end
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context "when probability and reliability are high" do
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let(:language_outcome) do
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instance_double(
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CLD3::NNetLanguageIdentifier::Result,
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language: :es,
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probability: 0.9,
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reliable?: true,
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)
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end
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it "returns es" do
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expect(described_class.call(text)).to eq(:es)
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end
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end
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end
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end
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