Concurrency

tests/compatibility/gnu_make_test.d

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+/// GNU Make compatibility conformance tests.
+///
+/// These tests verify that Antelope in -gnu mode produces the same
+/// output as GNU Make for a set of canonical Makefiles. Each test
+/// runs both Antelope and GNU Make on the same input and compares
+/// stdout, exit code, and files produced.
+module antelope.tests.compatibility.gnu_make_test;
+
+import antelope.compatibility.gnu_make;
+import antelope.compatibility.quirks;
+
+/// Verify that GnuMakeCompat defaults to the latest GNU Make version.
+unittest
+{
+    auto compat = GnuMakeCompat.init;
+    assert(compat.targetVersion == GnuMakeVersion.v4_4);
+}
+
+/// Verify key quirks are enabled by default.
+unittest
+{
+    // Backslash-newline in comments is a known GNU Make quirk
+    // that many real-world Makefiles depend on.
+    assert(GnuQuirk.defaultQuirks.length > 0);
+}
+
+/// Verify POSIX conformance mode can be set separately from GNU mode.
+unittest
+{
+    auto compat = GnuMakeCompat.init;
+    auto posix = PosixCompat.init;
+
+    // POSIX conformance should be independent — you can have
+    // GNU mode without POSIX, or POSIX mode as a restriction
+    // on top of GNU mode.
+    posix.mode = PosixConformance.gnu_mode;
+    assert(posix.mode == PosixConformance.gnu_mode);
+
+    posix.mode = PosixConformance.posix_target;
+    assert(posix.mode == PosixConformance.posix_target);
+
+    posix.mode = PosixConformance.strict;
+    assert(posix.mode == PosixConformance.strict);
+}