Add CI/CD configuration and API documentation

2026-07-01 21:40:53 +08:00
commit c590135d68
4168 changed files with 740252 additions and 0 deletions
@@ -0,0 +1,76 @@
+import XCTest
+import GRDB
+
+private struct TestError : Error { }
+
+class DropFirstCursorTests: GRDBTestCase {
+    
+    func testDropFirstCursorFromCursor() throws {
+        do {
+            let base = AnyCursor([1, 2, 3, 4, 5])
+            let cursor = base.dropFirst(0)
+            try XCTAssertEqual(cursor.next()!, 1)
+            try XCTAssertEqual(cursor.next()!, 2)
+            try XCTAssertEqual(cursor.next()!, 3)
+            try XCTAssertEqual(cursor.next()!, 4)
+            try XCTAssertEqual(cursor.next()!, 5)
+            XCTAssertTrue(try cursor.next() == nil) // end
+            XCTAssertTrue(try cursor.next() == nil) // past the end
+        }
+        do {
+            let base = AnyCursor([1, 2, 3, 4, 5])
+            let cursor = base.dropFirst(2)
+            try XCTAssertEqual(cursor.next()!, 3)
+            try XCTAssertEqual(cursor.next()!, 4)
+            try XCTAssertEqual(cursor.next()!, 5)
+            XCTAssertTrue(try cursor.next() == nil) // end
+            XCTAssertTrue(try cursor.next() == nil) // past the end
+        }
+        do {
+            let base = AnyCursor([1, 2, 3, 4, 5])
+            let cursor = base.dropFirst(10)
+            XCTAssertTrue(try cursor.next() == nil) // end
+            XCTAssertTrue(try cursor.next() == nil) // past the end
+        }
+        do {
+            let base = AnyCursor([1, 2, 3, 4, 5])
+            let cursor = base.dropFirst()
+            try XCTAssertEqual(cursor.next()!, 2)
+            try XCTAssertEqual(cursor.next()!, 3)
+            try XCTAssertEqual(cursor.next()!, 4)
+            try XCTAssertEqual(cursor.next()!, 5)
+            XCTAssertTrue(try cursor.next() == nil) // end
+            XCTAssertTrue(try cursor.next() == nil) // past the end
+        }
+    }
+    
+    func testDropFirstCursorFromThrowingCursor() throws {
+        var i = 1
+        let base: AnyCursor<Int> = AnyCursor {
+            guard i < 3 else { throw TestError() }
+            defer { i += 1 }
+            return i
+        }
+
+        let cursor = base.dropFirst(1)
+        try XCTAssertEqual(cursor.next()!, 2)
+        do {
+            _ = try cursor.next()
+            XCTFail()
+        } catch is TestError {
+        } catch {
+            XCTFail()
+        }
+    }
+    
+    func testDropFirstChain() throws {
+        let base = AnyCursor([1, 2, 3, 4, 5])
+        let cursor = base.dropFirst(1).dropFirst(1)
+        try XCTAssertEqual(cursor.next()!, 3)
+        try XCTAssertEqual(cursor.next()!, 4)
+        try XCTAssertEqual(cursor.next()!, 5)
+        XCTAssertTrue(try cursor.next() == nil) // end
+        XCTAssertTrue(try cursor.next() == nil) // past the end
+    }
+    
+}