init spm

Package.swift

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+// swift-tools-version:5.3
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "iamport-ios",
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "iamport-ios",
+            targets: ["iamport-ios"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "iamport-ios",
+            dependencies: []),
+        .testTarget(
+            name: "iamport-iosTests",
+            dependencies: ["iamport-ios"]),
+    ]
+)

Sources/iamport-ios/iamport_ios.swift

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+struct iamport_ios {
+    var text = "Hello, World!"
+}

Tests/iamport-iosTests/iamport_iosTests.swift

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