Merge pull request swiftlang#42 from benlangmuir/test-fallback

[test] Add tests for FallbackBuildSystem

Author: benlangmuir

Tests/SKCoreTests/FallbackBuildSystemTests.swift

@@ -0,0 +1,105 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+
+@testable import SKCore
+
+import Basic
+import XCTest
+
+final class FallbackBuildSystemTests: XCTestCase {
+
+  func testSwift() {
+    let sdk =  AbsolutePath("/my/sdk")
+    let source = AbsolutePath("/my/source.swift")
+
+    let bs = FallbackBuildSystem()
+    bs.sdkpath = sdk
+
+    XCTAssertNil(bs.indexStorePath)
+    XCTAssertNil(bs.indexDatabasePath)
+
+    let settings = bs.settings(for: source.asURL, .swift)!
+    XCTAssertNil(settings.preferredToolchain)
+    XCTAssertNil(settings.workingDirectory)
+
+    let args = settings.compilerArguments
+    XCTAssertEqual(args, [
+      "-sdk",
+      sdk.asString,
+      source.asString,
+    ])
+
+    bs.sdkpath = nil
+
+    XCTAssertEqual(bs.settings(for: source.asURL, .swift)?.compilerArguments, [
+      source.asString,
+    ])
+  }
+
+  func testCXX() {
+    let sdk =  AbsolutePath("/my/sdk")
+    let source = AbsolutePath("/my/source.cpp")
+
+    let bs = FallbackBuildSystem()
+    bs.sdkpath = sdk
+
+    let settings = bs.settings(for: source.asURL, .cpp)!
+    XCTAssertNil(settings.preferredToolchain)
+    XCTAssertNil(settings.workingDirectory)
+
+    let args = settings.compilerArguments
+    XCTAssertEqual(args, [
+      "-isysroot",
+      sdk.asString,
+      source.asString,
+    ])
+
+    bs.sdkpath = nil
+
+    XCTAssertEqual(bs.settings(for: source.asURL, .cpp)?.compilerArguments, [
+      source.asString,
+    ])
+  }
+
+  func testC() {
+    let source = AbsolutePath("/my/source.c")
+    let bs = FallbackBuildSystem()
+    bs.sdkpath = nil
+    XCTAssertEqual(bs.settings(for: source.asURL, .c)?.compilerArguments, [
+      source.asString,
+    ])
+  }
+
+  func testObjC() {
+    let source = AbsolutePath("/my/source.m")
+    let bs = FallbackBuildSystem()
+    bs.sdkpath = nil
+    XCTAssertEqual(bs.settings(for: source.asURL, .objective_c)?.compilerArguments, [
+      source.asString,
+    ])
+  }
+
+  func testObjCXX() {
+    let source = AbsolutePath("/my/source.mm")
+    let bs = FallbackBuildSystem()
+    bs.sdkpath = nil
+    XCTAssertEqual(bs.settings(for: source.asURL, .objective_cpp)?.compilerArguments, [
+      source.asString,
+    ])
+  }
+
+  func testUnknown() {
+    let source = AbsolutePath("/my/source.mm")
+    let bs = FallbackBuildSystem()
+    XCTAssertNil(bs.settings(for: source.asURL, .unknown))
+  }
+}

Tests/SKCoreTests/XCTestManifests.swift

@@ -16,6 +16,20 @@ extension CompilationDatabaseTests {
     ]
 }
 
+extension FallbackBuildSystemTests {
+    // DO NOT MODIFY: This is autogenerated, use: 
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__FallbackBuildSystemTests = [
+        ("testC", testC),
+        ("testCXX", testCXX),
+        ("testObjC", testObjC),
+        ("testObjCXX", testObjCXX),
+        ("testSwift", testSwift),
+        ("testUnknown", testUnknown),
+    ]
+}
+
 extension ToolchainRegistryTests {
     // DO NOT MODIFY: This is autogenerated, use: 
     //   `swift test --generate-linuxmain`
@@ -37,6 +51,7 @@ extension ToolchainRegistryTests {
 public func __allTests() -> [XCTestCaseEntry] {
     return [
         testCase(CompilationDatabaseTests.__allTests__CompilationDatabaseTests),
+        testCase(FallbackBuildSystemTests.__allTests__FallbackBuildSystemTests),
         testCase(ToolchainRegistryTests.__allTests__ToolchainRegistryTests),
     ]
 }