Swift: introduce xcode-autobuilder tests

Author: AlexDenisov

swift/xcode-autobuilder/BUILD.bazel

@@ -7,7 +7,7 @@ swift_cc_binary(
         "*.cpp",
         "*.h",
     ]),
-    visibility = ["//swift:__pkg__"],
+    visibility = ["//swift:__subpackages__"],
     linkopts = [
         "-lxml2",
         "-framework CoreFoundation",

swift/xcode-autobuilder/tests/.gitignore

@@ -0,0 +1,3 @@
+xcuserdata
+build
+*.actual

swift/xcode-autobuilder/tests/BUILD.bazel

@@ -0,0 +1,14 @@
+py_test(
+    name = 'hello-autobuilder-test',
+    size = "small",
+    srcs = ['autobuild_tester.py'],
+    main = 'autobuild_tester.py',
+    data = [
+        "//swift/xcode-autobuilder",
+        'hello-autobuilder',
+    ] + glob(['hello-autobuilder/**/*'], exclude = ['**/*.actual']),
+    args = [
+      '$(location //swift/xcode-autobuilder)',
+      '$(location hello-autobuilder)',
+    ]
+)

swift/xcode-autobuilder/tests/autobuild_tester.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import sys
+import subprocess
+import pathlib
+import os
+
+autobuilder = pathlib.Path(sys.argv[1]).absolute()
+test_dir = pathlib.Path(sys.argv[2])
+
+expected = test_dir / 'commands.expected'
+actual = pathlib.Path('commands.actual')
+
+print(os.getcwd())
+
+with open(actual, 'wb') as out:
+    ret = subprocess.run([str(autobuilder), '-dry-run', '.'], capture_output=True, check=True, cwd=test_dir)
+    for line in ret.stdout.splitlines():
+        out.write(line.rstrip())
+        out.write(b'\n')
+
+subprocess.run(['diff', '-u', expected, actual], check=True)
+
+print("SUCCESS!")

swift/xcode-autobuilder/tests/hello-autobuilder/commands.expected

@@ -0,0 +1 @@
+/usr/bin/xcodebuild build -project ./hello-autobuilder.xcodeproj -target hello-autobuilder CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO