[Library] Word filtering in Foundation library (#6)

This PR contains the work done to Implemented the `FilterWordsUseCase` use case in the Foundation library, which will be used to filter the content of the reviews. Reviewed-on: rock-n-code/app-reviews#6 Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>
2024-03-18 01:53:28 +00:00
parent 7c016b50d6
commit ef6478dcc6
2 changed files with 245 additions and 0 deletions
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+//
+//  FilterWordsUseCaseTests.swift
+//  ReviewsFoundationTest
+//
+//  Created by Javier Cicchelli on 18/03/2024.
+//  Copyright © 2024 Röck+Cöde VoF. All rights reserved.
+//
+
+import ReviewsFoundationKit
+import XCTest
+
+final class FilterWordsUseCaseTests: XCTestCase {
+
+    // MARK: Properties
+    private var input: FilterWordsUseCase.Input!
+    private var output: FilterWordsUseCase.Output!
+    private var sut: FilterWordsUseCase!
+
+    // MARK: Setup
+    override func setUp() async throws {
+        sut = .init()
+    }
+
+    // MARK: Function tests
+    func testCallAsFunction_withInput_hasSomeLongWords() throws {
+        // GIVEN
+        input = "one two three four five six seven eight nine ten"
+        
+        // WHEN
+        output = try sut(input)
+        
+        // THEN
+        XCTAssertFalse(output.isEmpty)
+        XCTAssertEqual(output, [
+            .init(word: "Eight", count: 1),
+            .init(word: "Five", count: 1),
+            .init(word: "Four", count: 1),
+            .init(word: "Nine", count: 1),
+            .init(word: "Seven", count: 1),
+            .init(word: "Three", count: 1),
+        ])
+    }
+    
+    func testCallAsFunction_withInput_hasSomeRepeatedLongWords() throws {
+        // GIVEN
+        input = "one two three three four five five six seven eight nine nine ten"
+        
+        // WHEN
+        output = try sut(input)
+        
+        // THEN
+        XCTAssertFalse(output.isEmpty)
+        XCTAssertEqual(output, [
+            .init(word: "Five", count: 2),
+            .init(word: "Nine", count: 2),
+            .init(word: "Three", count: 2),
+            .init(word: "Eight", count: 1),
+            .init(word: "Four", count: 1),
+            .init(word: "Seven", count: 1),
+        ])
+    }
+    
+    func testCallAsFunction_withInput_hasSomeRepeatedCaseSensitiveLongWords() throws {
+        // GIVEN
+        input = "one two three Three four Five five six seven eight nine nine ten"
+        
+        // WHEN
+        output = try sut(input)
+        
+        // THEN
+        XCTAssertFalse(output.isEmpty)
+        XCTAssertEqual(output, [
+            .init(word: "Five", count: 2),
+            .init(word: "Nine", count: 2),
+            .init(word: "Three", count: 2),
+            .init(word: "Eight", count: 1),
+            .init(word: "Four", count: 1),
+            .init(word: "Seven", count: 1),
+        ])
+    }
+    
+    func testCallAsFunction_withInput_hasSomeRepeatedDiacriticSensitiveLongWords() throws {
+        // GIVEN
+        input = "one two thrèé Three four Fíve fïve six Šëvêń seven eight niñe nine ten"
+        
+        // WHEN
+        output = try sut(input)
+        
+        // THEN
+        XCTAssertFalse(output.isEmpty)
+        XCTAssertEqual(output, [
+            .init(word: "Five", count: 2),
+            .init(word: "Nine", count: 2),
+            .init(word: "Seven", count: 2),
+            .init(word: "Three", count: 2),
+            .init(word: "Eight", count: 1),
+            .init(word: "Four", count: 1),
+        ])
+    }
+    
+    func testCallAsFunction_withInput_hasOnlyShortWords() throws {
+        // GIVEN
+        input = "no one is a two"
+        
+        // WHEN
+        output = try sut(input)
+        
+        // THEN
+        XCTAssertTrue(output.isEmpty)
+        XCTAssertEqual(output, [])
+    }
+
+    func testCallAsFunction_withEmptyInput() throws {
+        // GIVEN
+        input = .empty
+
+        // WHEN
+        output = try sut(input)
+
+        // THEN
+        XCTAssertTrue(output.isEmpty)
+        XCTAssertEqual(output, [])
+    }
+    
+}