diff --git a/Makefile b/Makefile
index 2893a52..5cfb939 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,14 @@
 
-PROGRAM_NAME 	= antelope-api-healthcheck
-export PROGRAM_VERSION = 1.4.6
+PROGRAM_NAME 		= antelope-api-healthcheck
+export PROGRAM_VERSION 	= 1.4.6
 
-GO			= go
+GO		= go
 PREFIX 		= /usr/local
 export GOOS	= $(shell $(GO) env GOOS)
-export GOARCH = $(shell $(GO) env GOARCH)
-GOBUILDFLAGS  = -v -ldflags='-v -s -w -X main.VersionString=$(PROGRAM_VERSION)'
+export GOARCH 	= $(shell $(GO) env GOARCH)
+GOBUILDFLAGS  	= -v -ldflags='-v -s -w -X main.VersionString=$(PROGRAM_VERSION)'
 
-DPKG_BUILDPACKAGE = dpkg-buildpackage
+DPKG_BUILDPACKAGE 	= dpkg-buildpackage
 DPKG_BUILDPACKAGE_FLAGS = -b -uc
 
 .PHONY: all build/$(PROGRAM_NAME) build/antelope-v1-mock-server clean package_debian
diff --git a/README.md b/README.md
index 957425a..c977dd1 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,12 @@ This program implements Antelope healthcheck for HAProxy over TCP.
 
 ## Compiling
 
-You will need go-lang version `1.16` or later to compile the source.
+You will need golang version `1.16` or later to compile the source.
 
 compile with `compile.sh` script
 
 ```sh
-$ ./compile.sh
+./compile.sh
 ```
 
 Execute `./compile.sh --help` to see all available flags to crosscompile for different systems/architectures.
diff --git a/internal/api/make_test.go b/internal/api/make_test.go
new file mode 100644
index 0000000..125d304
--- /dev/null
+++ b/internal/api/make_test.go
@@ -0,0 +1,37 @@
+package api
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMakeV1(t *testing.T) {
+	api, err := Make("v1", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AntelopeV1{}, api)
+}
+
+func TestMakeV2(t *testing.T) {
+	api, err := Make("v2", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AntelopeV2{}, api)
+}
+
+func TestMakeAtomic(t *testing.T) {
+	api, err := Make("atomic", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, AtomicAsset{}, api)
+}
+
+func TestMakeDebug(t *testing.T) {
+	api, err := Make("debug", ApiArguments{})
+	assert.NoError(t, err)
+	assert.IsType(t, DebugApi{}, api)
+}
+
+func TestMakeInvalid(t *testing.T) {
+	api, err := Make("invalid", ApiArguments{})
+	assert.Error(t, err)
+	assert.Nil(t, api)
+}