[Proof of Concept] Pull in LilyPondTestSuite XML file from disk (#83)

Author: jsbean

.travis.yml

@@ -8,7 +8,7 @@ osx_image: xcode11
 install:
   - eval "$(curl -sL https://swiftenv.fuller.li/install.sh)"
 env:
-  - SWIFT_VERSION=DEVELOPMENT-SNAPSHOT-2019-08-01-a CODECOV_TOKEN=52103015-769c-4c59-b537-4fa9fe91c41c
+  - SWIFT_VERSION=5.1
 script:
   - swift package update
   - if [ $TRAVIS_OS_NAME = 'osx' ]; then 

Tests/LilypondTestSuite/LICENSE renamed to Tests/LilyPondTestSuite/LICENSE

@@ -0,0 +1,38 @@
+//
+//  LilyPondTestSuite.swift
+//  MusicXMLTests
+//
+//  Created by James Bean on 9/28/19.
+//
+
+import Foundation
+import MusicXML
+
+enum LilyPondTestSuite {
+    enum Traversal: String, CaseIterable {
+        case partwise = "Partwise"
+        case timewise = "Timewise"
+    }
+    static func url(testName: String, traversal: Traversal) -> URL {
+        return URL(fileURLWithPath: "\(#file)")
+            .deletingLastPathComponent()
+            .deletingLastPathComponent()
+            .deletingLastPathComponent()
+            .appendingPathComponent("LilyPondTestSuite", isDirectory: true)
+            .appendingPathComponent(traversal.rawValue, isDirectory: true)
+            .appendingPathComponent("\(testName).xml")
+    }
+    static func string(testName: String, traversal: Traversal) throws -> String {
+        return try String(contentsOf: url(testName: testName, traversal: traversal))
+    }
+}
+
+extension MusicXML {
+
+    /// Create a `MusicXML` structure with the given `testFileName` and the given `traversal`.
+    ///
+    /// This grabs the `.xml` file from the `Tests/LilyPondTestSuite` directory.
+    init(testFileName: Swift.String, traversal: LilyPondTestSuite.Traversal) throws {
+        try self.init(string: LilyPondTestSuite.string(testName: testFileName, traversal: traversal))
+    }
+}

Tests/LilypondTestSuite/Partwise/01a-Pitches-Pitches.xml renamed to Tests/LilyPondTestSuite/Partwise/01a-Pitches-Pitches.xml

@@ -11,7 +11,7 @@ import MusicXML
 class Partwise_01_Pitches: XCTestCase {
 
     func test_01_Pitches() throws {
-        let _ = try MusicXML(string: A_Pitches)
+        let _ = try MusicXML(testFileName: "01a-Pitches-Pitches", traversal: .partwise)
         let _ = try MusicXML(string: B_Intervals)
         let _ = try MusicXML(string: C_NoVoiceElement)
         let _ = try MusicXML(string: D_Microtones)