Tests/SparkConnectTests/CaseInsensitiveDictionaryTests.swift

//
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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
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//
//  http://www.apache.org/licenses/LICENSE-2.0
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import Foundation
import Testing

@testable import SparkConnect

/// A test suite for `CaseInsensitiveDictionary`
struct CaseInsensitiveDictionaryTests {
  @Test
  func empty() async throws {
    let dict = CaseInsensitiveDictionary([:])
    #expect(dict.count == 0)
  }

  @Test
  func originalDictionary() async throws {
    let dict = CaseInsensitiveDictionary([
      "key1": "value1",
      "KEY1": "VALUE1",
    ])
    #expect(dict.count == 1)
    #expect(dict.originalDictionary.count == 2)
  }

  @Test
  func toDictionary() async throws {
    let dict = CaseInsensitiveDictionary([
      "key1": "value1",
      "KEY1": "VALUE1",
    ])
    #expect(dict.toDictionary().count == 2)
  }

  @Test
  func `subscript`() async throws {
    var dict = CaseInsensitiveDictionary([:])
    #expect(dict.count == 0)

    dict["KEY1"] = "value1"
    #expect(dict.count == 1)
    #expect(dict["key1"] as! String == "value1")
    #expect(dict["KEY1"] as! String == "value1")
    #expect(dict["KeY1"] as! String == "value1")

    dict["key2"] = false
    #expect(dict.count == 2)
    #expect(dict["kEy2"] as! Bool == false)

    dict["key3"] = 2025
    #expect(dict.count == 3)
    #expect(dict["key3"] as! Int == 2025)
  }

  @Test
  func updatedOriginalDictionary() async throws {
    var dict = CaseInsensitiveDictionary([
      "key1": "value1",
      "KEY1": "VALUE1",
    ])
    #expect(dict.count == 1)
    #expect(dict.originalDictionary.count == 2)

    dict["KEY1"] = "Swift"
    #expect(dict["KEY1"] as! String == "Swift")
    #expect(dict.count == 1)
    #expect(dict.originalDictionary.count == 1)
    #expect(dict.toDictionary().count == 1)
  }
}