adding tests for config.MergeConfigMap functionality. (Set vs SetDefault).

Converted all settings keys to snakecase.

webapp/backend/pkg/config/config_test.go

@@ -0,0 +1,34 @@
+package config
+
+import (
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func Test_MergeConfigMap(t *testing.T) {
+	//setup
+	testConfig := configuration{
+		Viper: viper.New(),
+	}
+	testConfig.Set("user.dashboard_display", "hello")
+	testConfig.SetDefault("user.layout", "hello")
+
+	mergeSettings := map[string]interface{}{
+		"user": map[string]interface{}{
+			"dashboard_display": "dashboard_display",
+			"layout":            "layout",
+		},
+	}
+	//test
+	err := testConfig.MergeConfigMap(mergeSettings)
+
+	//verify
+	require.NoError(t, err)
+
+	// if using Set, the MergeConfigMap functionality will not override
+	// if using SetDefault, the MergeConfigMap will override correctly
+	require.Equal(t, "hello", testConfig.GetString("user.dashboard_display"))
+	require.Equal(t, "layout", testConfig.GetString("user.layout"))
+
+}