Adds tests for TecoDateWrapperGenerator

Author: stevapple

Package.swift

@@ -81,5 +81,11 @@ let package = Package(
             dependencies: [
                 .byName(name: "TecoCodeGeneratorCommons"),
             ]),
+        .testTarget(
+            name: "TecoDateWrapperGeneratorTests",
+            dependencies: [
+                .byName(name: "TecoCodeGeneratorTestHelpers"),
+                .byName(name: "TecoDateWrapperGenerator"),
+            ]),
     ]
 )

Tests/TecoDateWrapperGeneratorTests/TecoDateWrapperGeneratorTests.swift

@@ -0,0 +1,30 @@
+import TecoCodeGeneratorTestHelpers
+import XCTest
+
+#if Xcode // Works around FB11980900
+@testable import teco_date_wrapper_generator
+#else
+@testable import TecoDateWrapperGenerator
+#endif
+
+final class TecoDateWrapperGeneratorTests: XCTestCase {
+    func testImportDeclsBuilder() throws {
+        AssertBuilder(buildImportDecls(for: .date), contains: [
+            "import struct Foundation.Date",
+            "import class Foundation.DateFormatter"
+        ])
+        AssertBuilder(buildImportDecls(for: .timestamp), contains: [
+            "import struct Foundation.Date",
+            "import class Foundation.DateFormatter"
+        ])
+        AssertBuilder(buildImportDecls(for: .timestamp_iso8601), contains: [
+            "import struct Foundation.Date",
+            "import class Foundation.ISO8601DateFormatter"
+        ])
+    }
+
+    func testDateWrapperNames() {
+        let expected: Set = ["TCDateEncoding", "TCTimestampEncoding", "TCTimestampISO8601Encoding"]
+        XCTAssertEqual(Set(DateEncoding.all.map(\.rawValue)), expected)
+    }
+}