diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 524feac..090c70b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,5 +46,8 @@ jobs:
       - name: Build codex go
         run: make
 
+      - name: Install gotestsum
+        run: go install gotest.tools/gotestsum@latest
+
       - name: Go test
         run: make test
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..153cf4e
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,77 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Debug Current Test",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${fileDirname}",
+      "args": ["-test.v", "-test.run", "^${selectedText}$"],
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    },
+    {
+      "name": "Debug Current Test Function",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${fileDirname}",
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    },
+    {
+      "name": "Debug All Tests in Current File",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${fileDirname}",
+      "args": ["-test.v"],
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    },
+    {
+      "name": "Debug All Tests in Current Package",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${fileDirname}",
+      "args": ["-test.v", "-count=1"],
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    },
+    {
+      "name": "Debug Codex Tests",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${workspaceFolder}/codex",
+      "args": ["-test.v"],
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    },
+    {
+      "name": "Debug Specific Test (e.g., TestUpload)",
+      "type": "go",
+      "request": "launch",
+      "mode": "test",
+      "program": "${workspaceFolder}/codex",
+      "args": [
+        "-test.v",
+        "-test.run",
+        "TestUpload"
+      ],
+      "env": {
+        "CGO_ENABLED": "1"
+      }
+    }
+  ]
+}
diff --git a/Makefile b/Makefile
index d7ddf34..8678dea 100644
--- a/Makefile
+++ b/Makefile
@@ -23,13 +23,24 @@ libcodex:
 	@echo "Building libcodex..."
 	@$(MAKE) -C $(NIM_CODEX_DIR) libcodex
 
+libcodex-with-debug-api:
+	@echo "Building libcodex..."
+	@$(MAKE) -C $(NIM_CODEX_DIR) libcodex CODEX_LIB_PARAMS="-d:codex_enable_api_debug_peers"
+
 build:
 	@echo "Building Codex Go Bindings..."
 	CGO_ENABLED=1 CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" go build -o codex-go ./codex
 
 test:
 	@echo "Running tests..."
-	CGO_ENABLED=1 CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOTESTFLAGS="-timeout=2m" go test ./...
+	CGO_ENABLED=1 CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOTESTFLAGS="-timeout=2m" gotestsum --packages="./..." -f testname -- $(if $(filter-out test,$(MAKECMDGOALS)),-run "$(filter-out test,$(MAKECMDGOALS))")
+
+test-with-params:
+	@echo "Running tests..."
+	CGO_ENABLED=1 CGO_CFLAGS="$(CGO_CFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" GOTESTFLAGS="-timeout=2m" gotestsum --packages="./..." -f testname -- $(ARGS)
+
+%:
+	@:
 
 clean:
 	@echo "Cleaning up..."
diff --git a/README.md b/README.md
index 29e3c20..ae7c92b 100644
--- a/README.md
+++ b/README.md
@@ -78,22 +78,63 @@ Follow these steps to install and set up the module:
 1. Make sure your system has the [prerequisites](https://github.com/codex-storage/nim-codex) to run a local Codex node.
 
 2. Fetch the dependencies:
-   ```
+   ```sh
    make update
    ```
 
 3. Build the library:
-   ```
+   ```sh
    make libcodex
    ```
 
 You can pass flags to the Codex building step by using `CODEX_LIB_PARAMS`. For example,
 if you want to enable debug API for peers, you can build the library using:
 
-```
+```sh
 CODEX_LIB_PARAMS="-d:codex_enable_api_debug_peers=true" make libcodex
 ```
 
+or you can use a convenience `libcodex-with-debug-api` make target:
+
+```sh
+make libcodex-with-debug-api
+```
+
+To run the test, you have to make sure you have `gotestsum` installed on your system, e.g.:
+
+```sh
+go install gotest.tools/gotestsum@latest
+```
+
+Then you can run the tests as follows.
+
+To run all the tests:
+
+```sh
+make test
+```
+
+To run selected test only:
+
+```sh
+make test "TestDownloadManifest$"
+```
+
+> We use `$` to make sure we run only the `TestDownloadManifest` test.
+> Without `$` we would run all the tests starting with `TestDownloadManifest` and
+> so also `TestDownloadManifestWithNotExistingCid`
+>
+
+If you need to pass more arguments to the underlying `go test` (`gotestsum` passes
+everything after `--` to `go test`), you can use: `test-with-params` make target, e.g.:
+
+```sh
+make test-with-params ARGS='-run "TestDownloadManifest$$" -count=2'
+```
+
+> Here, we use double escape `$$` instead of just `$`, otherwise make
+> will interpret `$` as a make variable inside `ARGS`. 
+
 Now the module is ready for use in your project.
 
 The release process is defined [here](./RELEASE.md).