init

.bazelversion

+5.2.0

app/BUILD.bazel

+
+cc_binary(
+    name = "img-render",
+    srcs = ["IMGRender.cc"]
+)

app/IMGRender.cc

+int main(int argc, char *argv[]) {
+    return 0;
+}

src/BUILD.bazel

+
+cc_library(
+    name = "render",
+    srcs = ["canvas.cc"],
+    hdrs = ["canvas.h"],
+    visibility = [
+      "//app:__pkg__",
+      "//tests:__pkg__"
+    ]
+)

src/canvas.cc

+#include <stdio.h>
+
+int say(void) {
+    printf("Hello,World\n");
+    return 0;
+}

src/canvas.h

+
+int say();

tests/BUILD.bazel

+# Needed for each target whose artifacts are to be checked.
+cc_test(
+    name = "check",
+    srcs = [":check.cc"],
+    args = ["/home"],
+    deps = ["//src:render"]
+)

tests/check.cc

+#include "src/canvas.h"
+
+int main(void) {
+    return say();
+}