emissary/internal/config/environment_test.go

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package config
import (
"fmt"
"testing"
)
type interpolateTestCase struct {
String string
Data map[string]string
Expected string
}
var interpolateTestCases = []interpolateTestCase{
{
String: "${foo}",
Data: map[string]string{
"foo": "bar",
},
Expected: "bar",
},
{
String: "${hello:-world}",
Data: map[string]string{},
Expected: "world",
},
{
String: "${hello:-}",
Data: map[string]string{},
Expected: "${hello:-}",
},
{
String: "foo",
Data: map[string]string{},
Expected: "foo",
},
{
String: "",
Data: map[string]string{},
Expected: "",
},
}
func TestInterpolate(t *testing.T) {
for idx, tc := range interpolateTestCases {
func(idx int, tc interpolateTestCase) {
t.Run(fmt.Sprintf("Case_%d", idx), func(t *testing.T) {
result := interpolate(tc.String, func(name string) string {
value, exists := tc.Data[name]
if !exists {
return ""
}
return value
})
if e, g := tc.Expected, result; e != g {
t.Errorf("result: expected '%v', got '%v'", tc.Expected, result)
}
})
}(idx, tc)
}
}