[ios, macos] Added Swift MGLStyleValue tests

Added tests of MGLStyleValue written in Swift, along with bridging headers just in case they become needed in the future.

1 files changed, 36 insertions, 0 deletions

diff --git a/platform/darwin/test/MGLStyleValueTests.swift b/platform/darwin/test/MGLStyleValueTests.swift
new file mode 100644
index 0000000000..f7bf343852
--- /dev/null
+++ b/platform/darwin/test/MGLStyleValueTests.swift
@@ -0,0 +1,36 @@
+import XCTest
+import Mapbox
+
+class MGLStyleValueTests: XCTestCase {
+    func testConstantValues() {
+        let geoJSONSource = MGLGeoJSONSource(identifier: "test", features: [], options: nil)
+        let symbolStyleLayer = MGLSymbolStyleLayer(identifier: "test", source: geoJSONSource)
+        
+        // Boolean
+        symbolStyleLayer.iconAllowOverlap = MGLStyleConstantValue(rawValue: true)
+        XCTAssertEqual((symbolStyleLayer.iconAllowOverlap as! MGLStyleConstantValue<NSNumber>).rawValue, true)
+        
+        // Number
+        symbolStyleLayer.iconHaloWidth = MGLStyleConstantValue(rawValue: 3)
+        XCTAssertEqual((symbolStyleLayer.iconHaloWidth as! MGLStyleConstantValue<NSNumber>).rawValue, 3)
+        
+        // String
+        symbolStyleLayer.textField = MGLStyleConstantValue(rawValue: "{name}")
+        XCTAssertEqual((symbolStyleLayer.textField as! MGLStyleConstantValue<NSString>).rawValue, "{name}")
+    }
+    
+    func testFunctions() {
+        let geoJSONSource = MGLGeoJSONSource(identifier: "test", features: [], options: nil)
+        let symbolStyleLayer = MGLSymbolStyleLayer(identifier: "test", source: geoJSONSource)
+        
+        // Boolean
+        let stops: [NSNumber: MGLStyleValue<NSNumber>] = [
+            1: MGLStyleValue(rawValue: true),
+            2: MGLStyleValue(rawValue: false),
+            3: MGLStyleValue(rawValue: true),
+            4: MGLStyleValue(rawValue: false),
+        ]
+        symbolStyleLayer.iconAllowOverlap = MGLStyleFunction<NSNumber>(base: 1, stops: stops)
+        XCTAssertEqual((symbolStyleLayer.iconAllowOverlap as! MGLStyleFunction<NSNumber>), MGLStyleFunction(base: 1, stops: stops))
+    }
+}