test: introduce link(er) tests - builds on standalone tests

6 files changed, 46 insertions, 0 deletions

diff --git a/test/link/interdependent_static_c_libs/a.c b/test/link/interdependent_static_c_libs/a.c
new file mode 100644
index 0000000000..ee9da97a3a
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/a.c
@@ -0,0 +1,4 @@
+#include "a.h"
+int32_t add(int32_t a, int32_t b) {
+    return a + b;
+}
diff --git a/test/link/interdependent_static_c_libs/a.h b/test/link/interdependent_static_c_libs/a.h
new file mode 100644
index 0000000000..7b45d54d56
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/a.h
@@ -0,0 +1,2 @@
+#include <stdint.h>
+int32_t add(int32_t a, int32_t b);
diff --git a/test/link/interdependent_static_c_libs/b.c b/test/link/interdependent_static_c_libs/b.c
new file mode 100644
index 0000000000..ac2cc4f937
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/b.c
@@ -0,0 +1,6 @@
+#include "a.h"
+#include "b.h"
+
+int32_t sub(int32_t a, int32_t b) {
+  return add(a, -1 * b);
+}
diff --git a/test/link/interdependent_static_c_libs/b.h b/test/link/interdependent_static_c_libs/b.h
new file mode 100644
index 0000000000..6047163145
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/b.h
@@ -0,0 +1,2 @@
+#include <stdint.h>
+int32_t sub(int32_t a, int32_t b);
diff --git a/test/link/interdependent_static_c_libs/build.zig b/test/link/interdependent_static_c_libs/build.zig
new file mode 100644
index 0000000000..bd1b6100da
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/build.zig
@@ -0,0 +1,24 @@
+const Builder = @import("std").build.Builder;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+
+    const lib_a = b.addStaticLibrary("a", null);
+    lib_a.addCSourceFile("a.c", &[_][]const u8{});
+    lib_a.setBuildMode(mode);
+    lib_a.addIncludePath(".");
+
+    const lib_b = b.addStaticLibrary("b", null);
+    lib_b.addCSourceFile("b.c", &[_][]const u8{});
+    lib_b.setBuildMode(mode);
+    lib_b.addIncludePath(".");
+
+    const test_exe = b.addTest("main.zig");
+    test_exe.setBuildMode(mode);
+    test_exe.linkLibrary(lib_a);
+    test_exe.linkLibrary(lib_b);
+    test_exe.addIncludePath(".");
+
+    const test_step = b.step("test", "Test it");
+    test_step.dependOn(&test_exe.step);
+}
diff --git a/test/link/interdependent_static_c_libs/main.zig b/test/link/interdependent_static_c_libs/main.zig
new file mode 100644
index 0000000000..cb5d2e7b77
--- /dev/null
+++ b/test/link/interdependent_static_c_libs/main.zig
@@ -0,0 +1,8 @@
+const std = @import("std");
+const expect = std.testing.expect;
+const c = @cImport(@cInclude("b.h"));
+
+test "import C sub" {
+    const result = c.sub(2, 1);
+    try expect(result == 1);
+}