import Testing
@testable import SstData

struct VocabularyBuilderTests {
    @Test func termsComeFirstThenCorrectionTargetsWithoutDuplicates() {
        let entries = [pair("cloud code", "Claude Code"), term("Anthropic"), term("anthropic"), pair("versel", "Vercel"), term("Supabase")]
        #expect(VocabularyBuilder.build(from: entries) == ["Anthropic", "Supabase", "Claude Code", "Vercel"])
    }

    @Test func listIsCapped() {
        let entries = (1...40).map { term("Woord\($0)") }
        #expect(VocabularyBuilder.build(from: entries).count == 24)
        #expect(VocabularyBuilder.build(from: entries, maxTerms: 5).count == 5)
    }

    @Test func emptyDictionaryGivesNoVocabulary() {
        #expect(VocabularyBuilder.build(from: []).isEmpty)
    }
}