link-tests: test -search_paths_first and -search_dylibs_first macho flags

test/link.zig

@@ -60,5 +60,13 @@ pub fn addCases(cases: *tests.StandaloneContext) void {
         cases.addBuildFile("test/link/macho/stack_size/build.zig", .{
             .build_modes = true,
         });
+
+        cases.addBuildFile("test/link/macho/search_paths_first/build.zig", .{
+            .build_modes = true,
+        });
+
+        cases.addBuildFile("test/link/macho/search_dylibs_first/build.zig", .{
+            .build_modes = true,
+        });
     }
 }

test/link/macho/search_dylibs_first/a.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+char world[] = "world";
+
+char* hello() {
+  return "Hello";
+}

test/link/macho/search_dylibs_first/build.zig

@@ -0,0 +1,48 @@
+const std = @import("std");
+const Builder = std.build.Builder;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const test_step = b.step("test", "Test");
+    test_step.dependOn(b.getInstallStep());
+
+    const static = b.addStaticLibrary("a", null);
+    static.setBuildMode(mode);
+    static.addCSourceFile("a.c", &.{});
+    static.linkLibC();
+    static.override_dest_dir = std.build.InstallDir{
+        .custom = "static",
+    };
+    static.install();
+
+    const dylib = b.addSharedLibrary("a", null, b.version(1, 0, 0));
+    dylib.setBuildMode(mode);
+    dylib.addCSourceFile("a.c", &.{});
+    dylib.linkLibC();
+    dylib.override_dest_dir = std.build.InstallDir{
+        .custom = "dynamic",
+    };
+    dylib.install();
+
+    const exe = b.addExecutable("main", null);
+    exe.setBuildMode(mode);
+    exe.addCSourceFile("main.c", &.{});
+    exe.linkSystemLibraryName("a");
+    exe.linkLibC();
+    exe.addLibraryPath(b.pathFromRoot("zig-out/static"));
+    exe.addLibraryPath(b.pathFromRoot("zig-out/dynamic"));
+    exe.addRPath(b.pathFromRoot("zig-out/dynamic"));
+    exe.search_strategy = .dylibs_first;
+
+    const check = exe.checkObject(.macho);
+    check.checkStart("cmd LOAD_DYLIB");
+    check.checkNext("name @rpath/liba.dylib");
+
+    test_step.dependOn(&check.step);
+
+    const run = exe.run();
+    run.cwd = b.pathFromRoot(".");
+    run.expectStdOutEqual("Hello world");
+    test_step.dependOn(&run.step);
+}

test/link/macho/search_dylibs_first/main.c

@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+char* hello();
+extern char world[];
+
+int main() {
+  printf("%s %s", hello(), world);
+  return 0;
+}

test/link/macho/search_paths_first/a.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+char world[] = "world";
+
+char* hello() {
+  return "Hello";
+}

test/link/macho/search_paths_first/build.zig

@@ -0,0 +1,41 @@
+const std = @import("std");
+const Builder = std.build.Builder;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const test_step = b.step("test", "Test");
+    test_step.dependOn(b.getInstallStep());
+
+    const static = b.addStaticLibrary("a", null);
+    static.setBuildMode(mode);
+    static.addCSourceFile("a.c", &.{});
+    static.linkLibC();
+    static.override_dest_dir = std.build.InstallDir{
+        .custom = "static",
+    };
+    static.install();
+
+    const dylib = b.addSharedLibrary("a", null, b.version(1, 0, 0));
+    dylib.setBuildMode(mode);
+    dylib.addCSourceFile("a.c", &.{});
+    dylib.linkLibC();
+    dylib.override_dest_dir = std.build.InstallDir{
+        .custom = "dynamic",
+    };
+    dylib.install();
+
+    const exe = b.addExecutable("main", null);
+    exe.setBuildMode(mode);
+    exe.addCSourceFile("main.c", &.{});
+    exe.linkSystemLibraryName("a");
+    exe.linkLibC();
+    exe.addLibraryPath(b.pathFromRoot("zig-out/static"));
+    exe.addLibraryPath(b.pathFromRoot("zig-out/dynamic"));
+    exe.search_strategy = .paths_first;
+
+    const run = exe.run();
+    run.cwd = b.pathFromRoot(".");
+    run.expectStdOutEqual("Hello world");
+    test_step.dependOn(&run.step);
+}

test/link/macho/search_paths_first/main.c

@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+char* hello();
+extern char world[];
+
+int main() {
+  printf("%s %s", hello(), world);
+  return 0;
+}