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From the Swift documentation: "If you define an optional variable without providing a default value, the variable is automatically set to nil for you."
109 lines
4.0 KiB
Swift
109 lines
4.0 KiB
Swift
// RUN: rm -rf %t && mkdir -p %t
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// RUN: %target-build-swift -c -force-single-frontend-invocation -parse-as-library -emit-module -emit-module-path %t/PrintTestTypes.swiftmodule -o %t/PrintTestTypes.o %S/Inputs/PrintTestTypes.swift
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// RUN: %target-build-swift %s -Xlinker %t/PrintTestTypes.o -I %t -L %t -o %t/main
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// RUN: %target-run %t/main
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// REQUIRES: executable_test
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import StdlibUnittest
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import PrintTestTypes
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let PrintTests = TestSuite("PrintStruct")
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PrintTests.test("Printable") {
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let s0 = [ WithoutDescription(1), WithoutDescription(2), WithoutDescription(3) ]
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expectPrinted(
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"[PrintTestTypes.WithoutDescription(x: 1), PrintTestTypes.WithoutDescription(x: 2), PrintTestTypes.WithoutDescription(x: 3)]",
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s0)
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expectDebugPrinted(
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"[PrintTestTypes.WithoutDescription(x: 1), PrintTestTypes.WithoutDescription(x: 2), PrintTestTypes.WithoutDescription(x: 3)]",
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s0)
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expectPrinted("EmptyStructWithoutDescription()",
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EmptyStructWithoutDescription())
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expectDebugPrinted("PrintTestTypes.EmptyStructWithoutDescription()",
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EmptyStructWithoutDescription())
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expectPrinted(
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"ValuesWithoutDescription<Double, String, Array<Int>>(t: 1.25, u: \"abc\", v: [1, 2, 3])",
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ValuesWithoutDescription(1.25, "abc", [ 1, 2, 3 ]))
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expectDebugPrinted(
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"PrintTestTypes.ValuesWithoutDescription<Swift.Double, Swift.String, Swift.Array<Swift.Int>>(t: 1.25, u: \"abc\", v: [1, 2, 3])", ValuesWithoutDescription(1.25, "abc", [ 1, 2, 3 ]))
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}
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PrintTests.test("custom string convertible structs") {
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struct Wrapper : CustomStringConvertible {
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var x: CustomStringConvertible?
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var description: String {
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return "Wrapper(\(x.debugDescription))"
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}
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}
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expectPrinted("Wrapper(nil)", Wrapper())
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expectPrinted("Wrapper(Optional(Wrapper(nil)))",
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Wrapper(x: Wrapper()))
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expectPrinted("Wrapper(Optional(Wrapper(Optional(Wrapper(nil)))))",
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Wrapper(x: Wrapper(x: Wrapper())))
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}
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func test_ThickMetatypePrintingImpl<T>(
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_ thickMetatype: T.Type,
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_ expectedPrint: String,
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_ expectedDebug: String
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) {
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expectPrinted(expectedPrint, thickMetatype)
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expectPrinted("[\(expectedDebug)]", [thickMetatype])
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expectDebugPrinted(expectedDebug, thickMetatype)
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expectDebugPrinted("[\(expectedDebug)]", [thickMetatype])
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}
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PrintTests.test("StructPrintable") {
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let s0 = StructPrintable(1)
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let s1: ProtocolUnrelatedToPrinting = StructPrintable(1)
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let s2: CustomStringConvertible = StructPrintable(1)
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let s3: Any = StructPrintable(1)
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expectPrinted("►1◀︎", s0)
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expectPrinted("►1◀︎", s1)
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expectPrinted("►1◀︎", s2)
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expectPrinted("►1◀︎", s3)
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let structMetatype = StructPrintable.self
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expectPrinted("StructPrintable", structMetatype)
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expectDebugPrinted("PrintTestTypes.StructPrintable", structMetatype)
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expectPrinted("[PrintTestTypes.StructPrintable]", [structMetatype])
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expectDebugPrinted("[PrintTestTypes.StructPrintable]", [structMetatype])
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test_ThickMetatypePrintingImpl(structMetatype, "StructPrintable",
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"PrintTestTypes.StructPrintable")
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}
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PrintTests.test("LargeStructPrintable") {
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let s0 = LargeStructPrintable(10, 20, 30, 40)
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let s1: ProtocolUnrelatedToPrinting = LargeStructPrintable(10, 20, 30, 40)
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let s2: CustomStringConvertible = LargeStructPrintable(10, 20, 30, 40)
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let s3: Any = LargeStructPrintable(10, 20, 30, 40)
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expectPrinted("<10 20 30 40>", s0)
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expectPrinted("<10 20 30 40>", s1)
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expectPrinted("<10 20 30 40>", s2)
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expectPrinted("<10 20 30 40>", s0)
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expectPrinted("<10 20 30 40>", s3)
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}
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PrintTests.test("StructVeryPrintable") {
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let s0 = StructVeryPrintable(1)
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let s1: ProtocolUnrelatedToPrinting = StructVeryPrintable(1)
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let s2: CustomStringConvertible = StructVeryPrintable(1)
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let s3: CustomDebugStringConvertible = StructVeryPrintable(1)
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let s4: Any = StructVeryPrintable(1)
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expectPrinted("<description: 1>", s0)
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expectPrinted("<description: 1>", s1)
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expectPrinted("<description: 1>", s2)
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expectPrinted("<description: 1>", s3)
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expectPrinted("<description: 1>", s4)
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}
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runAllTests()
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