add tests

tgymnich · Dec 10, 2020 · 333dbe3 · 333dbe3
1 parent 8031bab
commit 333dbe3
Showing 1 changed file with 81 additions and 0 deletions.
diff --git a/Tests/BitwiseRotateTests/BitwiseRotateTests.swift b/Tests/BitwiseRotateTests/BitwiseRotateTests.swift
@@ -20,6 +20,46 @@ final class BitwiseRotateTests: XCTestCase {
         XCTAssertEqual(Int8(0b0110_0111) <<< 4, Int8(0b0111_0110))
     }
 
+    func testRotatedLeft() {
+        var n1 = 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001
+        n1.rotatedLeft(0)
+        XCTAssertEqual(n1, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001)
+        n1.rotatedLeft(10)
+        XCTAssertEqual(n1, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000100_00000000)
+
+        var n2 = 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_01010101
+        n2.rotatedLeft(23)
+        XCTAssertEqual(n2, 0b00000000_00000000_00000000_00000000_00101010_10000000_00000000_00000000)
+
+        var n3: UInt = UInt(0b011111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111)
+        n3.rotatedLeft(1)
+        XCTAssertEqual(n3, UInt(0b111111111_11111111_11111111_1111111_11111111_11111111_11111111_11111110))
+        var n4: UInt = UInt(0b011111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111)
+        n4.rotatedLeft(63)
+        XCTAssertEqual(n4, UInt(0b101111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111))
+
+        var n5: UInt32 = UInt32(0b0111_1111_0000_0000_0000_0000_1111_1111)
+        n5.rotatedLeft(8)
+        XCTAssertEqual(n5, UInt32(0b0000_0000_0000_0000_1111_1111_0111_1111))
+        var n6: Int32 = Int32(0b0000_0000_1111_1111_0111_1111_1111_1111)
+        n6.rotatedLeft(16)
+        XCTAssertEqual(n6, Int32(0b0111_1111_1111_1111_0000_0000_1111_1111))
+
+        var n7: UInt16 = UInt16(0b00000000_11111111)
+        n7.rotatedLeft(4)
+        XCTAssertEqual(n7, UInt16(0b00001111_11110000))
+        var n8: Int16 = Int16(0b01100111_01111111)
+        n8.rotatedLeft(8)
+        XCTAssertEqual(n8, Int16(0b01111111_01100111))
+
+        var n9: UInt8 = UInt8(0b11000111)
+        n9.rotatedLeft(5)
+        XCTAssertEqual(n9, UInt8(0b1111_1000))
+        var n10: Int8 = Int8(0b0110_0111)
+        n10.rotatedLeft(4)
+        XCTAssertEqual(n10, Int8(0b0111_0110))
+    }
+
     func testRotateRight() {
         XCTAssertEqual(0b00000000_00000000_00000000_00000000_00000000_00000000_00000100_00000000 >>> 10, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001)
         XCTAssertEqual(0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001 >>> 0, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001)
@@ -37,4 +77,45 @@ final class BitwiseRotateTests: XCTestCase {
         XCTAssertEqual(UInt8(0b1111_1000) >>> 5, UInt8(0b11000111))
         XCTAssertEqual(Int8(0b0111_0110) >>> 4, Int8(0b0110_0111))
     }
+
+    func testRotatedRight() {
+        var n0 = 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001
+        n0.rotatedRight(0)
+        XCTAssertEqual(n0 <<< 0, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001)
+        var n1 = 0b00000000_00000000_00000000_00000000_00000000_00000000_00000100_00000000
+        n1.rotatedRight(10)
+        XCTAssertEqual(n1, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_00000001)
+
+        var n2 = 0b00000000_00000000_00000000_00000000_00101010_10000000_00000000_00000000
+        n2.rotatedRight(23)
+        XCTAssertEqual(n2, 0b00000000_00000000_00000000_00000000_00000000_00000000_00000000_01010101)
+
+        var n3: UInt = UInt(0b111111111_11111111_11111111_1111111_11111111_11111111_11111111_11111110)
+        n3.rotatedRight(1)
+        XCTAssertEqual(n3, UInt(0b011111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111))
+        var n4: UInt = UInt(0b101111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111)
+        n4.rotatedRight(63)
+        XCTAssertEqual(n4, UInt(0b011111111_11111111_11111111_1111111_11111111_11111111_11111111_11111111))
+
+        var n5: UInt32 = UInt32(0b0000_0000_0000_0000_1111_1111_0111_1111)
+        n5.rotatedRight(8)
+        XCTAssertEqual(n5, UInt32(0b0111_1111_0000_0000_0000_0000_1111_1111))
+        var n6: Int32 = Int32(0b0111_1111_1111_1111_0000_0000_1111_1111)
+        n6.rotatedRight(16)
+        XCTAssertEqual(n6, Int32(0b0000_0000_1111_1111_0111_1111_1111_1111))
+
+        var n7: UInt16 = UInt16(0b00001111_11110000)
+        n7.rotatedRight(4)
+        XCTAssertEqual(n7, UInt16(0b00000000_11111111))
+        var n8: Int16 = Int16(0b01111111_01100111)
+        n8.rotatedRight(8)
+        XCTAssertEqual(n8, Int16(0b01100111_01111111))
+
+        var n9: UInt8 = UInt8(0b1111_1000)
+        n9.rotatedRight(5)
+        XCTAssertEqual(n9, UInt8(0b11000111))
+        var n10: Int8 = Int8(0b0111_0110)
+        n10.rotatedRight(4)
+        XCTAssertEqual(n10, Int8(0b0110_0111))
+    }
 }