terraform/internal/lang/funcs/string_test.go

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package funcs
import (
"fmt"
"testing"
"github.com/zclconf/go-cty/cty"
)
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func TestReplace(t *testing.T) {
tests := []struct {
String cty.Value
Substr cty.Value
Replace cty.Value
Want cty.Value
Err bool
}{
{ // Regular search and replace
cty.StringVal("hello"),
cty.StringVal("hel"),
cty.StringVal("bel"),
cty.StringVal("bello"),
false,
},
{ // Search string doesn't match
cty.StringVal("hello"),
cty.StringVal("nope"),
cty.StringVal("bel"),
cty.StringVal("hello"),
false,
},
{ // Regular expression
cty.StringVal("hello"),
cty.StringVal("/l/"),
cty.StringVal("L"),
cty.StringVal("heLLo"),
false,
},
{
cty.StringVal("helo"),
cty.StringVal("/(l)/"),
cty.StringVal("$1$1"),
cty.StringVal("hello"),
false,
},
{ // Bad regexp
cty.StringVal("hello"),
cty.StringVal("/(l/"),
cty.StringVal("$1$1"),
cty.UnknownVal(cty.String),
true,
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("replace(%#v, %#v, %#v)", test.String, test.Substr, test.Replace), func(t *testing.T) {
got, err := Replace(test.String, test.Substr, test.Replace)
if test.Err {
if err == nil {
t.Fatal("succeeded; want error")
}
return
} else if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if !got.RawEquals(test.Want) {
t.Errorf("wrong result\ngot: %#v\nwant: %#v", got, test.Want)
}
})
}
}