test: add tests for helpers

Signed-off-by: Mateusz Urbanek <[email protected]>

observability/wrappers/helpers.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 Akamai Technologies, Inc.
+Copyright 2024 Akamai Technologies, Inc.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -16,10 +16,10 @@ limitations under the License.
 
 package wrappers
 
-func GetValue[T any](params map[string]any, key string) (T, bool) {
+func GetValue[T any](m map[string]any, key string) (T, bool) {
 	var zero T
 
-	if val, ok := params[key]; ok {
+	if val, ok := m[key]; ok {
 		if val, ok := val.(T); ok {
 			return val, true
 		}

observability/wrappers/helpers_test.go

@@ -0,0 +1,121 @@
+/*
+Copyright 2024 Akamai Technologies, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package wrappers
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOptional(t *testing.T) {
+	t.Parallel()
+
+	t.Run("int", func(t *testing.T) {
+		t.Parallel()
+
+		val := 1
+
+		ret := Optional[int](&val)
+		assert.Equal(t, val, ret)
+
+		ret = Optional[int](nil)
+		assert.Equal(t, 0, ret)
+	})
+
+	t.Run("string", func(t *testing.T) {
+		t.Parallel()
+
+		val := "foo"
+
+		ret := Optional[string](&val)
+		assert.Equal(t, val, ret)
+
+		ret = Optional[string](nil)
+		assert.Equal(t, "", ret)
+	})
+
+	t.Run("slice", func(t *testing.T) {
+		t.Parallel()
+
+		val := []string{"foo", "bar"}
+
+		ret := Optional[[]string](&val)
+		assert.Equal(t, val, ret)
+
+		ret = Optional[[]string](nil)
+		assert.Equal(t, []string(nil), ret)
+	})
+}
+
+func TestGetValue(t *testing.T) {
+	t.Parallel()
+
+	t.Run("int", func(t *testing.T) {
+		t.Parallel()
+
+		key := "key"
+		val := 3
+		valueMap := map[string]any{key: val}
+
+		ret, ok := GetValue[int](valueMap, key)
+		assert.True(t, ok)
+		assert.Equal(t, val, ret)
+
+		_, ok = GetValue[int](valueMap, "foo")
+		assert.False(t, ok)
+
+		_, ok = GetValue[string](valueMap, key)
+		assert.False(t, ok)
+	})
+
+	t.Run("string", func(t *testing.T) {
+		t.Parallel()
+
+		key := "key"
+		val := "val"
+		valueMap := map[string]any{key: val}
+
+		ret, ok := GetValue[string](valueMap, key)
+		assert.True(t, ok)
+		assert.Equal(t, val, ret)
+
+		_, ok = GetValue[string](valueMap, "foo")
+		assert.False(t, ok)
+
+		_, ok = GetValue[int](valueMap, key)
+		assert.False(t, ok)
+	})
+
+	t.Run("slice", func(t *testing.T) {
+		t.Parallel()
+
+		key := "key"
+		val := []string{"foo", "bar"}
+		valueMap := map[string]any{key: val}
+
+		ret, ok := GetValue[[]string](valueMap, key)
+		assert.True(t, ok)
+		assert.Equal(t, val, ret)
+
+		_, ok = GetValue[[]string](valueMap, "foo")
+		assert.False(t, ok)
+
+		_, ok = GetValue[int](valueMap, key)
+		assert.False(t, ok)
+	})
+}