Basics.

Tests/ReadabilityFrameworkTests/ReadabilityFrameworkTests.swift

@@ -1,11 +0,0 @@
-import XCTest
-@testable import ReadabilityFramework
-
-final class ReadabilityFrameworkTests: XCTestCase {
-    func testExample() throws {
-        // This is an example of a functional test case.
-        // Use XCTAssert and related functions to verify your tests produce the correct
-        // results.
-        XCTAssertEqual(ReadabilityFramework().text, "Hello, World!")
-    }
-}

Tests/ReadabilityTests/CommonMetrics.swift

@@ -0,0 +1,32 @@
+import XCTest
+@testable import Readability
+
+final class CommonMetrics: XCTestCase {
+  func testOnlyWordCount() throws {
+    let calc = RACommonMetricsCalculator(metrics: [.wordCount])
+
+    let results = calc.calculate(on: "Hello, World!")
+
+    XCTAssertEqual(results, [.wordCount: 2.0])
+  }
+
+  func testAllMetrics() throws {
+    let calc = RACommonMetricsCalculator(metrics: [
+      .syllableCount,
+      .wordCount,
+      .sentenceCount,
+      .avgSyllablesPerWord,
+      .avgWordsPerSentence,
+    ])
+
+    let results = calc.calculate(on: "Hello, World!")
+
+    XCTAssertEqual(results, [
+      .syllableCount: 3.0,
+      .wordCount: 2.0,
+      .sentenceCount: 1.0,
+      .avgSyllablesPerWord: 1.5,
+      .avgWordsPerSentence: 2.0
+    ])
+  }
+}

Tests/ReadabilityTests/Tokenization.swift

@@ -0,0 +1,28 @@
+import XCTest
+@testable import Readability
+
+final class Tokenization: XCTestCase {
+  func testHelloWorldSentence() throws {
+    let tokenizer = RATokenizer("Hello, world!", unit: .sentence)
+
+    var results: [String] = []
+    let count = tokenizer.enumerateTokens { sent in
+      results.append(sent)
+    }
+
+    XCTAssertEqual(count, 1)
+    XCTAssertEqual(results, ["Hello, world!"])
+  }
+
+  func testHelloWorldWord() throws {
+    let tokenizer = RATokenizer("Hello, world!", unit: .word)
+
+    var results: [String] = []
+    let count = tokenizer.enumerateTokens { sent in
+      results.append(sent)
+    }
+
+    XCTAssertEqual(count, 2)
+    XCTAssertEqual(results, ["Hello", "world"])
+  }
+}