diff --git a/config/.env.test b/config/.env.test
index e69de29..ea2b2b0 100644
--- a/config/.env.test
+++ b/config/.env.test
@@ -0,0 +1,2 @@
+MINIMUM_CRYPTO_SELL_OPERATION=0.001
+MINIMUM_CRYPTO_BUY_OPERATION=0.001
\ No newline at end of file
diff --git a/internal/operation-hub/application/config/load_env.go b/internal/operation-hub/application/config/load_env.go
index ee90cc8..13721ac 100644
--- a/internal/operation-hub/application/config/load_env.go
+++ b/internal/operation-hub/application/config/load_env.go
@@ -2,7 +2,6 @@ package config
 
 import (
 	"github.com/joho/godotenv"
-	"log"
 	"os"
 	"regexp"
 )
@@ -27,7 +26,7 @@ func load(file string) {
 
 	err := godotenv.Load(string(rootPath) + configDirPath + file)
 	if err != nil {
-		log.Fatal("Error loading .env file")
+		panic("Error loading .env file")
 	}
 }
 
@@ -38,10 +37,7 @@ const (
 )
 
 func LoadTestEnv() {
-	err := os.Setenv("OPERATION_HUB_ENV", string(test))
-	if err != nil {
-		panic("error while trying to set env variable")
-	}
+	_ = os.Setenv("OPERATION_HUB_ENV", string(test))
 
 	LoadEnv()
 }
diff --git a/internal/operation-hub/application/properties/proprierties.go b/internal/operation-hub/application/properties/proprierties.go
index 545e7a6..04eeea5 100644
--- a/internal/operation-hub/application/properties/proprierties.go
+++ b/internal/operation-hub/application/properties/proprierties.go
@@ -18,9 +18,10 @@ var propertiesInstance *properties
 
 func Properties() *properties {
 	if propertiesInstance == nil {
+		propertiesLoaded := loadProperties()
 		once.Do(
 			func() {
-				propertiesInstance = loadProperties()
+				propertiesInstance = propertiesLoaded
 			})
 	}
 
@@ -34,7 +35,7 @@ func loadProperties() *properties {
 	}
 	minimumCryptoBuyOperation, err := strconv.ParseFloat(os.Getenv("MINIMUM_CRYPTO_BUY_OPERATION"), 64)
 	if err != nil {
-		panic("Failed to load property \"MINIMUM_CRYPTO_SELL_OPERATION\" from environment")
+		panic("Failed to load property \"MINIMUM_CRYPTO_BUY_OPERATION\" from environment")
 	}
 	binanceCryptoSymbolPriceTickerUrl := os.Getenv("BINANCE_CRYPTO_SYMBOL_PRICE_TICKER_URL")
 
diff --git a/internal/operation-hub/domain/exceptions/crypto_error.go b/internal/operation-hub/domain/exceptions/crypto_error.go
deleted file mode 100644
index 5eecd55..0000000
--- a/internal/operation-hub/domain/exceptions/crypto_error.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package exceptions
-
-import "github.com/brienze1/crypto-robot-operation-hub/pkg/custom_error"
-
-func CryptoError(err error, internalError string) *custom_error.BaseError {
-	return custom_error.NewBaseError(err, internalError, "Error while getting crypto value")
-}
diff --git a/test/internal/operation-hub/application/config/load_env_test.go b/test/internal/operation-hub/application/config/load_env_test.go
new file mode 100644
index 0000000..285c47c
--- /dev/null
+++ b/test/internal/operation-hub/application/config/load_env_test.go
@@ -0,0 +1,31 @@
+package config
+
+import (
+	"github.com/brienze1/crypto-robot-operation-hub/internal/operation-hub/application/config"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"os"
+	"testing"
+)
+
+func TestLoadEnvSuccess(t *testing.T) {
+	err := os.Setenv("OPERATION_HUB_ENV", "test")
+	assert.Nil(t, err)
+
+	defer func() {
+		r := recover()
+
+		assert.Nil(t, r)
+	}()
+
+	config.LoadEnv()
+}
+
+func TestLoadEnvFailure(t *testing.T) {
+	err := os.Setenv("OPERATION_HUB_ENV", uuid.NewString())
+	assert.Nil(t, err)
+
+	panicFunction := func() { config.LoadEnv() }
+
+	assert.Panicsf(t, panicFunction, "Should panic")
+}
diff --git a/test/internal/operation-hub/application/properties/properties_test.go b/test/internal/operation-hub/application/properties/properties_test.go
new file mode 100644
index 0000000..cd01304
--- /dev/null
+++ b/test/internal/operation-hub/application/properties/properties_test.go
@@ -0,0 +1,42 @@
+package properties
+
+import (
+	"github.com/brienze1/crypto-robot-operation-hub/internal/operation-hub/application/properties"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"os"
+	"testing"
+)
+
+func setup() {
+	_ = os.Setenv("MINIMUM_CRYPTO_SELL_OPERATION", "0.1")
+	_ = os.Setenv("MINIMUM_CRYPTO_BUY_OPERATION", "0.1")
+}
+
+func TestPropertiesMinimumCryptoSellOperationFailure(t *testing.T) {
+	setup()
+
+	_ = os.Setenv("MINIMUM_CRYPTO_SELL_OPERATION", uuid.NewString())
+
+	panicFunction := func() { properties.Properties() }
+
+	assert.Panicsf(t, panicFunction, "Should panic")
+}
+
+func TestPropertiesMinimumCryptoBuyOperationFailure(t *testing.T) {
+	setup()
+
+	_ = os.Setenv("MINIMUM_CRYPTO_BUY_OPERATION", uuid.NewString())
+
+	panicFunction := func() { properties.Properties() }
+
+	assert.Panicsf(t, panicFunction, "Should panic")
+}
+
+func TestPropertiesSuccess(t *testing.T) {
+	setup()
+
+	panicFunction := func() { properties.Properties() }
+
+	assert.NotPanicsf(t, panicFunction, "Should not panic")
+}