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float_test.go
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// Tests
package genv
import (
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestGetEnvFloat32(t *testing.T) {
var val float32
varName := "VAR_FLOAT32_1"
// Test empty
os.Setenv(varName, "")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(0.0))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(1.5))
// Test valid value
os.Setenv(varName, "1.2345")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(1.2345))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(1.2345))
// Test invalid value
os.Setenv(varName, "abcd")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(0.0))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(1.5))
// Test with min value
os.Setenv(varName, "-3.4e+38")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(-3.4e+38))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(-3.4e+38))
// Test with max value
os.Setenv(varName, "3.4e+38")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(3.4e+38))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(3.4e+38))
// Test with overflow value
os.Setenv(varName, "3.4e+39")
val = GetEnvFloat32(varName, 0.0)
assert.Equal(t, val, float32(0.0))
val = GetEnvFloat32(varName, 1.5)
assert.Equal(t, val, float32(1.5))
}
func TestGetEnvFloat32WithWarning(t *testing.T) {
var val float32
var warning bool
varName := "VAR_FLOAT32_2"
// Test empty
os.Setenv(varName, "")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(0.0))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(1.5))
assert.Equal(t, warning, false)
// Test valid value
os.Setenv(varName, "1.2345")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(1.2345))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(1.2345))
assert.Equal(t, warning, false)
// Test invalid value
os.Setenv(varName, "abcd")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(0.0))
assert.Equal(t, warning, true)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(1.5))
assert.Equal(t, warning, true)
// Test with min value
os.Setenv(varName, "-3.4e+38")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(-3.4e+38))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(-3.4e+38))
assert.Equal(t, warning, false)
// Test with max value
os.Setenv(varName, "3.4e+38")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(3.4e+38))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(3.4e+38))
assert.Equal(t, warning, false)
// Test with overflow value
os.Setenv(varName, "3.4e+39")
val, warning = GetEnvFloat32WithWarning(varName, 0.0)
assert.Equal(t, val, float32(0.0))
assert.Equal(t, warning, true)
val, warning = GetEnvFloat32WithWarning(varName, 1.5)
assert.Equal(t, val, float32(1.5))
assert.Equal(t, warning, true)
}
func TestGetEnvFloat64(t *testing.T) {
var val float64
varName := "VAR_FLOAT64_1"
// Test empty
os.Setenv(varName, "")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(0.0))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(1.5))
// Test valid value
os.Setenv(varName, "1.2345")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(1.2345))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(1.2345))
// Test invalid value
os.Setenv(varName, "abcd")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(0.0))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(1.5))
// Test with min value
os.Setenv(varName, "-1.7e+308")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(-1.7e+308))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(-1.7e+308))
// Test with max value
os.Setenv(varName, "1.7e+308")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(1.7e+308))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(1.7e+308))
// Test with overflow value
os.Setenv(varName, "1.7e+309")
val = GetEnvFloat64(varName, 0.0)
assert.Equal(t, val, float64(0.0))
val = GetEnvFloat64(varName, 1.5)
assert.Equal(t, val, float64(1.5))
}
func TestGetEnvFloat64WithWarning(t *testing.T) {
var val float64
var warning bool
varName := "VAR_FLOAT64_2"
// Test empty
os.Setenv(varName, "")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(0.0))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(1.5))
assert.Equal(t, warning, false)
// Test valid value
os.Setenv(varName, "1.2345")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(1.2345))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(1.2345))
assert.Equal(t, warning, false)
// Test invalid value
os.Setenv(varName, "abcd")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(0.0))
assert.Equal(t, warning, true)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(1.5))
assert.Equal(t, warning, true)
// Test with min value
os.Setenv(varName, "-1.7e+308")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(-1.7e+308))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(-1.7e+308))
assert.Equal(t, warning, false)
// Test with max value
os.Setenv(varName, "1.7e+308")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(1.7e+308))
assert.Equal(t, warning, false)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(1.7e+308))
assert.Equal(t, warning, false)
// Test with overflow value
os.Setenv(varName, "1.7e+309")
val, warning = GetEnvFloat64WithWarning(varName, 0.0)
assert.Equal(t, val, float64(0.0))
assert.Equal(t, warning, true)
val, warning = GetEnvFloat64WithWarning(varName, 1.5)
assert.Equal(t, val, float64(1.5))
assert.Equal(t, warning, true)
}