From 4406619c84764dce53c72b1da038cc402fb6174d Mon Sep 17 00:00:00 2001
From: Sven Weidauer <sven@5sw.de>
Date: Thu, 31 Dec 2020 20:16:41 +0100
Subject: [PATCH] Simplify color parser tests

---
 Tests/MakeColorsTests/ColorParserTest.swift | 38 +++++++++------------
 1 file changed, 16 insertions(+), 22 deletions(-)

diff --git a/Tests/MakeColorsTests/ColorParserTest.swift b/Tests/MakeColorsTests/ColorParserTest.swift
index 3db8714..708c77d 100644
--- a/Tests/MakeColorsTests/ColorParserTest.swift
+++ b/Tests/MakeColorsTests/ColorParserTest.swift
@@ -3,68 +3,62 @@ import XCTest
 
 final class ColorParserTest: XCTestCase {
     func testScanningThreeDigitColor() throws {
-        let scanner = Scanner(string: "#abc")
-        let color = scanner.color()
+        let color = scanColor("#abc")
         XCTAssertEqual(Color(red: 0xAA, green: 0xBB, blue: 0xCC), color)
     }
 
     func testScanningThreeDigitColorUppercase() throws {
-        let scanner = Scanner(string: "#ABc")
-        let color = scanner.color()
+        let color = scanColor("#ABc")
         XCTAssertEqual(Color(red: 0xAA, green: 0xBB, blue: 0xCC), color)
     }
 
     func testScanningFourDigitColor() throws {
-        let scanner = Scanner(string: "#abcd")
-        let color = scanner.color()
+        let color = scanColor("#abcd")
         XCTAssertEqual(Color(red: 0xAA, green: 0xBB, blue: 0xCC, alpha: 0xDD), color)
     }
 
     func testScanningSixDigitColor() throws {
-        let scanner = Scanner(string: "#abcdef")
-        let color = scanner.color()
+        let color = scanColor("#abcdef")
         XCTAssertEqual(Color(red: 0xAB, green: 0xCD, blue: 0xEF), color)
     }
 
     func testScanningEightDigitColor() throws {
-        let scanner = Scanner(string: "#abcdef17")
-        let color = scanner.color()
+        let color = scanColor("#abcdef17")
         XCTAssertEqual(Color(red: 0xAB, green: 0xCD, blue: 0xEF, alpha: 0x17), color)
     }
 
     func testScanningRGBColor() throws {
-        let scanner = Scanner(string: "rgb(1,2,3)")
-        let color = scanner.color()
+        let color = scanColor("rgb(1,2,3)")
         XCTAssertEqual(Color(red: 1, green: 2, blue: 3), color)
     }
 
     func testScanningRGBAColor() throws {
-        let scanner = Scanner(string: "rgba(1,2,3,4)")
-        let color = scanner.color()
+        let color = scanColor("rgba(1,2,3,4)")
         XCTAssertEqual(Color(red: 1, green: 2, blue: 3, alpha: 4), color)
     }
 
     func testScanningWhite() throws {
-        let scanner = Scanner(string: "white(255)")
-        let color = scanner.color()
+        let color = scanColor("white(255)")
         XCTAssertEqual(Color(red: 255, green: 255, blue: 255, alpha: 255), color)
     }
 
     func testScanningWhiteWithAlpha() throws {
-        let scanner = Scanner(string: "white(255, 128)")
-        let color = scanner.color()
+        let color = scanColor("white(255, 128)")
         XCTAssertEqual(Color(red: 255, green: 255, blue: 255, alpha: 128), color)
     }
 
     func testWhiteFailsWithoutArguments() throws {
-        let scanner = Scanner(string: "white()")
-        let color = scanner.color()
+        let color = scanColor("white()")
         XCTAssertNil(color)
     }
 
     func testWhiteFailsWith3Arguments() throws {
-        let scanner = Scanner(string: "white(1,2,3)")
-        let color = scanner.color()
+        let color = scanColor("white(1,2,3)")
         XCTAssertNil(color)
     }
+
+    private func scanColor(_ input: String) -> Color? {
+        let scanner = Scanner(string: input)
+        return scanner.color()
+    }
 }