More swiftbuild testing #8333

cmcgee1024 · 2025-03-06T14:18:37Z

Add more verifications of the swiftbuild build system to ensure correctness moving forward. Tag various discovered swift-build integration issues with the tag SWBINTTODO with a general description of the problem encountered to enable categorization for further exploration activities.

Motivation:

The swiftbuild integration has only the most basic smoke testing of its functionality. Add more automated tests, and explicit skips where there are functionality gaps that need to be addressed.

plemarquand · 2025-03-10T18:44:03Z

IntegrationTests/Tests/IntegrationTests/SwiftPMTests.swift

-            try localFileSystem.createDirectory(packagePath)
-            try sh(swiftPackage, "--package-path", packagePath, "init", "--type", "executable")
-            try sh(swiftBuild, "--package-path", packagePath, "--build-system", "swiftbuild")
+        do {


Are these do blocks intended to swallow all errors? Seems like this test should be skipped instead.

These do blocks seem to throw errors, and that's why I had to comment out the assert at the bottom. The original intent is unclear. You can see them in #8276 too.

The goal is to increase test coverage, even if the assert/test at the end don't currently work. I think that these do exercise the build function.

plemarquand · 2025-03-10T18:52:48Z

Tests/CommandsTests/APIDiffTests.swift

-final class APIDiffTests: CommandsTestCase {
+class APIDiffTestCase: CommandsBuildProviderTestCase {
+    override func setUpWithError() throws {
+        try XCTSkipIf(type(of: self) == APIDiffTestCase.self, "Pay no attention to the class behind the curtain.")


Is this to make sure this class is "abstract" and ensure its always extended? I don't want to be a wet paper bag, but a more clear message would help clarify the intent.

That's correct. I've updated this message to help clarify that.

Tests/CommandsTests/BuildCommandTests.swift

Tests/CommandsTests/PackageCommandTests.swift

dschaefer2 · 2025-03-10T19:17:58Z

Sources/SPMBuildCore/BuildSystem/BuildSystem.swift

@@ -173,7 +173,7 @@ extension BuildSystemProvider.Kind {
    public var usesXcodeBuildEngine: Bool {
        switch self {
            case .native: return false
-            case .swiftbuild: return false
+            case .swiftbuild: return true


Don't change this. I am removing this calculated boolean in my swift run/test PR.

Ok, is that change going in imminently? If not, this change really improves the test success rates until that other PR lands.

dschaefer2 · 2025-03-10T19:18:47Z

Sources/SPMBuildCore/BuildSystem/BuildSystem.swift

@@ -191,3 +191,16 @@ public enum BuildSystemUtilities {
        return try AbsolutePath(validating: env, relativeTo: workingDir)
    }
 }
+


Same with this. I am revamping how this path is calculated.

Same comment as above. Which PR will be merged first?

Augment Commands Tests to run against the Native and Swift Build build systems. - BuildCommandTests - TestCommandTests - RunCommandTests - APIDiffTests - PackageCommandTests Also, - Add a new BuildCommandTest and RunCommandTest test case that ensures a package with target conditionals builds and runs successfully - update BuildSystemProvider.Kind to define a "useXcodeBuildSystemPath" variable instead of sprinkling the `buildSystem == .xcode` all over the place - Augment the Swift Build integration test to run `swift test` TODO: - Instead of marking test failures as "Skipped", See if we can mark them as "expected fail" so we are forced to update the test once the production code has been update to support the "feature". more update'

This reverts commit 3e06c8f497b33b24aefc18290d9226dea01525e6.

Remove the duplicate symbol checks for use in a future enhancement Refactor xcode specific tests into the new build system matrix

… test

Skip Xcode build system variant of tests that are failing

… of the problem

Fix double-override in BuildCommandTests

…d integration issues

…ld build system

… buildsystem

…or one test

…to more_swiftbuild_testing

…ager into more_swiftbuild_testing

cmcgee1024 · 2025-03-13T13:08:02Z

@swift-ci please test

cmcgee1024 · 2025-03-13T13:08:14Z

@swift-ci test Windows

cmcgee1024 · 2025-03-13T17:46:30Z

Please test with following pull request:
swiftlang/swift-build#300

@swift-ci test Windows

…ager into more_swiftbuild_testing

cmcgee1024 · 2025-03-14T11:22:53Z

@swift-ci please test

cmcgee1024 · 2025-03-14T11:24:21Z

@swift-ci test Windows

bkhouri · 2025-03-14T13:44:36Z

Tests/CommandsTests/BuildCommandTests.swift

@@ -89,12 +108,6 @@ final class BuildCommandTests: CommandsTestCase {
        XCTAssertMatch(stdout, .contains("SEE ALSO: swift run, swift package, swift test"))
    }

-    func testCommandDoesNotEmitDuplicateSymbols() async throws {


question: why was this test removed?

This test was removed because it doesn't work with the new framework. The --help option isn't accepted by the executable it tries to run.

we may need to replace try await execute(["--help"]) with try await SwiftPM.Build.execute(....)

bkhouri · 2025-03-14T13:47:21Z

Tests/CommandsTests/BuildCommandTests.swift

-            // Print correct path when building with XCBuild.
-            #if os(macOS)
-            let xcodeDebugOutput = try await execute(["--build-system", "xcode", "--show-bin-path"], packagePath: fullPath)
+            guard buildSystemProvider == .xcode  || buildSystemProvider == .swiftbuild else {


suggestion: in order to make the intent more clear, can we move this considitional to a property/attribute in BuildSystemProvider.Kind so that we could do guard buildSystemProvider.supportsBinarySymLinks else { return } (or similar)

bkhouri · 2025-03-14T13:50:15Z

Tests/CommandsTests/BuildCommandTests.swift

-            #if os(macOS)
-            let xcodeDebugOutput = try await execute(["--build-system", "xcode", "--show-bin-path"], packagePath: fullPath)
+            guard buildSystemProvider == .xcode  || buildSystemProvider == .swiftbuild else {
+                return


thought (blocking): Can we call this guard as the very first step in the test implementation, and "Skip" the test in the else block so we don't get a "false positive".

e.g.

func testBinSymlink() async throws { guard buildSystemProvider.supportsBinarySymlink { XCTSkip("Build Provider \(buildSystemProvider) does not support binary symbolic links") return } try await fixture (.....) { ... } }

According to conventionalcomments.org "[thoughts] are non-blocking by nature..."

If this is non-blocking then a follow-up PR could address this.

bkhouri · 2025-03-14T13:51:16Z

Tests/CommandsTests/BuildCommandTests.swift

@@ -204,8 +220,16 @@ final class BuildCommandTests: CommandsTestCase {
                xcodeReleaseOutput,
                "\(xcbuildTargetPath.appending(components: "Products", "Release").pathString)\n"
            )
-            #endif
+        }


issue (blocking): can we add an assertion on the debug bin path?

Can this be done in a follow-up PR?

bkhouri · 2025-03-14T13:59:39Z

Tests/CommandsTests/BuildCommandTests.swift


            // In the case of the native build system check for the cross-compile target, only for macOS
 #if os(macOS)
-            if buildSystem == "native" {
+            if buildSystemProvider == .native {


issue (blocking): This test only has assertions for the native build system.

Can we document the intent of this test for the other build systems? If we want to ensure the package builds successfully, can we use the XCTAssertBuilds helper function in XCTAssertHelpers.swift .

While this doesn't have an assertion for the non-native build system case, there is an implicit assertion that the build succeeds, which increases test coverage for the other build systems. There does not appear to be an analog to the text that this is looking for with the other build systems. So, the question is do we want more test coverage, or not because of one less assert in this test case?

bkhouri · 2025-03-14T14:05:25Z

Tests/CommandsTests/PackageCommandTests.swift

@@ -40,7 +45,13 @@ final class PackageCommandTests: CommandsTestCase {
        var environment = env ?? [:]
        // don't ignore local packages when caching
        environment["SWIFTPM_TESTS_PACKAGECACHE"] = "1"
-        return try await SwiftPM.Package.execute(args, packagePath: packagePath, env: environment)
+        // return try await self.execute(args, packagePath: packagePath, env: environment)


nit: remove commented line

Removing the commented line requires another 4 hour turnaround waiting on CI, and that assumes that CI doesn't break for external reasons, and there are no conflicts introduced in the interim.

bkhouri · 2025-03-14T14:07:42Z

Tests/CommandsTests/PackageCommandTests.swift

@@ -40,7 +45,13 @@ final class PackageCommandTests: CommandsTestCase {
        var environment = env ?? [:]
        // don't ignore local packages when caching
        environment["SWIFTPM_TESTS_PACKAGECACHE"] = "1"


question: out of curiosity, what behavioural changes does setting this environment variable have?

This seems out of scope of this PR. I don't know the answer.

cmcgee1024 · 2025-03-14T16:07:18Z

@swift-ci test Windows

This is a followup to #8333 based on feedback from there.

cmcgee1024 mentioned this pull request Mar 7, 2025

Swiftbuild system doesn't support the build --enable-parseable-module-interfaces flag #8337

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cmcgee1024 marked this pull request as ready for review March 9, 2025 12:06

cmcgee1024 requested review from bnbarham, MaxDesiatov, jakepetroules, xedin, dschaefer2, shawnhyam, bripeticca, plemarquand, owenv and bkhouri as code owners March 9, 2025 12:06

plemarquand reviewed Mar 10, 2025

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dschaefer2 reviewed Mar 10, 2025

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bkhouri and others added 16 commits March 10, 2025 18:23

Attempt solution at a custom XFail for XCTest..

0620a2f

Revert "Attempt solution at a custom XFail for XCTest.."

d4b0761

This reverts commit 3e06c8f497b33b24aefc18290d9226dea01525e6.

Rebase and update the build system integration tests

ddc506e

Remove the duplicate symbol checks for use in a future enhancement Refactor xcode specific tests into the new build system matrix

Fix try XCTSkip with throw XCTSkip instead so that reasons show up in…

7f24a48

… test

Remove the PlatformCondition test for a follow-on PR

5129e96

Skip Xcode build system variant of tests that are failing

Conditionally skip tests on non-macOS that are failing with a summary…

3b4fa57

… of the problem

Remove additional test case referencing the platform conditional fixture

6dc555e

Skip failing BuildCommandXcodeTests

51d282b

Skip additional tests that fail on Linux

1226ba8

Fix double-override in BuildCommandTests

Apply SWBINTODO label to be able to query the codebase for swift-buil…

eb1b930

…d integration issues

Skip the verification of the swift run of an executable from swiftbui…

c3407d6

…ld build system

Normalize on tag SWBINTTODO

0036cad

Skip the integration testing of swift test the output of a swiftbuild…

a280640

… buildsystem

Add a check in failing test if Swift Build is not being linked in.

55d270b

Refine TODOs to provide more details about the specific test failures

d175cd0

cmcgee1024 added 5 commits March 10, 2025 18:23

Make another test conditional on swift-build support being available

f837cc3

Re-enable duplicate symbol checks and fill in test skip explanation f…

9d412e9

…or one test

Restore test cases and fix compile error

4fb9a12

Remove invalid test case

ea9f97f

Reword the skip message for the abstract test classes

153eb90

cmcgee1024 force-pushed the more_swiftbuild_testing branch from 02771e2 to 153eb90 Compare March 10, 2025 22:23

plemarquand approved these changes Mar 11, 2025

View reviewed changes

cmcgee1024 added 4 commits March 12, 2025 10:29

Merge branch 'main' of github.com:cmcgee1024/swift-package-manager in…

7febe69

…to more_swiftbuild_testing

Remove remnants of the useXcodeBuildSystemPath property

9427855

Tidy up formatting and unnecessary comment

62ec8e2

Merge branch 'main' of https://github.com/swiftlang/swift-package-man…

9c4e25c

…ager into more_swiftbuild_testing

Merge branch 'main' of https://github.com/swiftlang/swift-package-man…

c5746ca

…ager into more_swiftbuild_testing

cmcgee1024 enabled auto-merge (squash) March 14, 2025 12:00

bkhouri requested changes Mar 14, 2025

View reviewed changes

bkhouri approved these changes Mar 14, 2025

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cmcgee1024 merged commit 735ddd9 into swiftlang:main Mar 14, 2025
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cmcgee1024 mentioned this pull request Mar 17, 2025

Followup to increasing swift-build test coverage #8374

Merged

cmcgee1024 added a commit that referenced this pull request Mar 17, 2025

Followup to increasing swift-build test coverage (#8374)

1122c3c

This is a followup to #8333 based on feedback from there.

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cmcgee1024 commented Mar 6, 2025 •

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cmcgee1024 commented Mar 14, 2025

More swiftbuild testing #8333

More swiftbuild testing #8333

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cmcgee1024 commented Mar 6, 2025 • edited Loading

Motivation:

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cmcgee1024 commented Mar 13, 2025

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cmcgee1024 commented Mar 14, 2025

cmcgee1024 commented Mar 6, 2025 •

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