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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package log // import "go.opentelemetry.io/otel/sdk/log"
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestNewSetting(t *testing.T) {
const val int = 1
s := newSetting(val)
assert.True(t, s.Set, "returned unset value")
assert.Equal(t, val, s.Value, "value not set")
}
func TestSettingResolve(t *testing.T) {
t.Run("clearLessThanOne", func(t *testing.T) {
var s setting[int]
s.Value = -10
s = s.Resolve(clearLessThanOne[int]())
assert.False(t, s.Set)
assert.Equal(t, 0, s.Value)
s = newSetting[int](1)
s = s.Resolve(clearLessThanOne[int]())
assert.True(t, s.Set)
assert.Equal(t, 1, s.Value)
})
t.Run("getenv", func(t *testing.T) {
const key = "key"
t.Setenv(key, "10")
var s setting[int]
s = s.Resolve(getenv[int](key))
assert.True(t, s.Set)
assert.Equal(t, 10, s.Value)
t.Setenv(key, "20")
s = s.Resolve(getenv[int](key))
assert.Equal(t, 10, s.Value, "set setting overridden")
})
t.Run("fallback", func(t *testing.T) {
var s setting[int]
s = s.Resolve(fallback[int](10))
assert.True(t, s.Set)
assert.Equal(t, 10, s.Value)
})
t.Run("Precedence", func(t *testing.T) {
const key = "key"
var s setting[int]
s = s.Resolve(
clearLessThanOne[int](),
getenv[int](key), // Unset.
fallback[int](10),
)
assert.True(t, s.Set)
assert.Equal(t, 10, s.Value)
t.Setenv(key, "20")
s = s.Resolve(
clearLessThanOne[int](),
getenv[int](key), // Should not apply, already set.
fallback[int](15), // Should not apply, already set.
)
assert.True(t, s.Set)
assert.Equal(t, 10, s.Value)
s = setting[int]{}
s = s.Resolve(
getenv[int](key),
fallback[int](15), // Should not apply, already set.
)
assert.True(t, s.Set)
assert.Equal(t, 20, s.Value)
})
}
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