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package test
import (
"errors"
"fmt"
"strings"
"testing"
)
// ReportError reports an error if got is different from want.
func ReportError(t testing.TB, got, want interface{}, inputs ...interface{}) {
b := &strings.Builder{}
fmt.Fprint(b, "\n")
for i, in := range inputs {
fmt.Fprintf(b, "in[%v]: %v\n", i, in)
}
fmt.Fprintf(b, "got: %v\nwant: %v", got, want)
t.Helper()
t.Fatal(b.String())
}
// CheckOk fails the test if result == false.
func CheckOk(result bool, msg string, t testing.TB) {
t.Helper()
if !result {
t.Fatal(msg)
}
}
// checkErr fails on error condition. mustFail indicates whether err is expected
// to be nil or not.
func checkErr(t testing.TB, err error, mustFail bool, msg string) {
t.Helper()
if err != nil && !mustFail {
t.Fatalf("msg: %v\nerr: %v", msg, err)
}
if err == nil && mustFail {
t.Fatalf("msg: %v\nerr: %v", msg, err)
}
}
// CheckNoErr fails if err !=nil. Print msg as an error message.
func CheckNoErr(t testing.TB, err error, msg string) { t.Helper(); checkErr(t, err, false, msg) }
// CheckIsErr fails if err ==nil. Print msg as an error message.
func CheckIsErr(t testing.TB, err error, msg string) { t.Helper(); checkErr(t, err, true, msg) }
// CheckPanic returns true if call to function 'f' caused panic.
func CheckPanic(f func()) error {
hasPanicked := errors.New("no panic detected")
defer func() {
if r := recover(); r != nil {
hasPanicked = nil
}
}()
f()
return hasPanicked
}
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