test: add unit tests for pkg/version package

backend/pkg/version/version_test.go

@@ -0,0 +1,73 @@
+package version
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetBinaryVersion_Default(t *testing.T) {
+	PackageVer = ""
+	PackageRev = ""
+
+	result := GetBinaryVersion()
+	assert.Equal(t, "develop", result)
+}
+
+func TestGetBinaryVersion_WithVersion(t *testing.T) {
+	PackageVer = "1.2.0"
+	PackageRev = ""
+	defer func() { PackageVer = "" }()
+
+	result := GetBinaryVersion()
+	assert.Equal(t, "1.2.0", result)
+}
+
+func TestGetBinaryVersion_WithVersionAndRevision(t *testing.T) {
+	PackageVer = "1.2.0"
+	PackageRev = "abc1234"
+	defer func() {
+		PackageVer = ""
+		PackageRev = ""
+	}()
+
+	result := GetBinaryVersion()
+	assert.Equal(t, "1.2.0-abc1234", result)
+}
+
+func TestGetBinaryVersion_WithRevisionOnly(t *testing.T) {
+	PackageVer = ""
+	PackageRev = "abc1234"
+	defer func() { PackageRev = "" }()
+
+	result := GetBinaryVersion()
+	assert.Equal(t, "develop-abc1234", result)
+}
+
+func TestIsDevelopMode_True(t *testing.T) {
+	PackageVer = ""
+
+	assert.True(t, IsDevelopMode())
+}
+
+func TestIsDevelopMode_False(t *testing.T) {
+	PackageVer = "1.0.0"
+	defer func() { PackageVer = "" }()
+
+	assert.False(t, IsDevelopMode())
+}
+
+func TestGetBinaryName_Default(t *testing.T) {
+	PackageName = ""
+
+	result := GetBinaryName()
+	assert.Equal(t, "pentagi", result)
+}
+
+func TestGetBinaryName_Custom(t *testing.T) {
+	PackageName = "myservice"
+	defer func() { PackageName = "" }()
+
+	result := GetBinaryName()
+	assert.Equal(t, "myservice", result)
+}