add test for addEmbedPath

test/standalone/build.zig.zon

@@ -126,6 +126,9 @@
         .c_compiler = .{
             .path = "c_compiler",
         },
+        .c_embed_path = .{
+            .path = "c_embed_path",
+        },
         .pie = .{
             .path = "pie",
         },

test/standalone/c_embed_path/build.zig

@@ -0,0 +1,25 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const test_step = b.step("test", "Test it");
+    b.default_step = test_step;
+
+    const optimize: std.builtin.OptimizeMode = .Debug;
+
+    const exe = b.addExecutable(.{
+        .name = "test",
+        .target = b.graph.host,
+        .optimize = optimize,
+    });
+    exe.addCSourceFile(.{
+        .file = b.path("test.c"),
+        .flags = &.{"-std=c23"},
+    });
+    exe.linkLibC();
+    exe.addEmbedPath(b.path("data"));
+
+    const run_c_cmd = b.addRunArtifact(exe);
+    run_c_cmd.expectExitCode(0);
+    run_c_cmd.skip_foreign_checks = true;
+    test_step.dependOn(&run_c_cmd.step);
+}

test/standalone/c_embed_path/data/foo.data

@@ -0,0 +1 @@
+This text is the contents of foo.data

test/standalone/c_embed_path/test.c

@@ -0,0 +1,15 @@
+
+#include <stdlib.h>
+#include <string.h>
+int main(void) {
+    // Raw bytes; not a C string
+    const char data[] = {
+#embed <foo.data>
+    };
+    const char *expected = "This text is the contents of foo.data\n";
+    if (sizeof data == strlen(expected) && memcmp(data, expected, sizeof data) == 0) {
+        return EXIT_SUCCESS;
+    } else {
+        return EXIT_FAILURE;
+    }
+}