Split out libraries into SPM packages (#298)

Sources/Packages/Tests/BriefTests/SemVerTests.swift

@@ -0,0 +1,51 @@
+import XCTest
+@testable import Brief
+
+class SemVerTests: XCTestCase {
+
+    func testEqual() {
+        let current = SemVer("1.0.2")
+        let old = SemVer("1.0.2")
+        XCTAssert(!(current > old))
+    }
+
+    func testPatchGreaterButMinorLess() {
+        let current = SemVer("1.1.0")
+        let old = SemVer("1.0.2")
+        XCTAssert(current > old)
+    }
+
+    func testMajorSameMinorGreater() {
+        let current = SemVer("1.0.2")
+        let new = SemVer("1.0.3")
+        XCTAssert(current < new)
+    }
+
+    func testMajorGreaterMinorLesser() {
+        let current = SemVer("1.0.2")
+        let new = SemVer("2.0.0")
+        XCTAssert(current < new)
+    }
+
+    func testRegularParsing() {
+        let current = SemVer("1.0.2")
+        XCTAssert(current.versionNumbers == [1, 0, 2])
+    }
+
+    func testNoPatch() {
+        let current = SemVer("1.1")
+        XCTAssert(current.versionNumbers == [1, 1, 0])
+    }
+
+    func testGarbage() {
+        let current = SemVer("Test")
+        XCTAssert(current.versionNumbers == [0, 0, 0])
+    }
+
+    func testBeta() {
+        let current = SemVer("1.0.2")
+        let new = SemVer("1.1.0_beta1")
+        XCTAssert(current < new)
+    }
+
+}