69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
package compiler_test
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import (
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"errors"
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"fmt"
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"math/big"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/stretchr/testify/require"
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)
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func TestPanic(t *testing.T) {
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t.Run("no panic", func(t *testing.T) {
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src := getPanicSource(false, `"execution fault"`)
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eval(t, src, big.NewInt(7))
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})
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t.Run("panic with message", func(t *testing.T) {
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var logs []string
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src := getPanicSource(true, `"execution fault"`)
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v := vmAndCompile(t, src)
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v.SyscallHandler = getLogHandler(&logs)
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require.Error(t, v.Run())
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require.True(t, v.HasFailed())
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require.Equal(t, 1, len(logs))
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require.Equal(t, "execution fault", logs[0])
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})
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t.Run("panic with nil", func(t *testing.T) {
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var logs []string
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src := getPanicSource(true, `nil`)
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v := vmAndCompile(t, src)
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v.SyscallHandler = getLogHandler(&logs)
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require.Error(t, v.Run())
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require.True(t, v.HasFailed())
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require.Equal(t, 0, len(logs))
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})
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}
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func getPanicSource(need bool, message string) string {
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return fmt.Sprintf(`
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package main
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func Main() int {
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needPanic := %#v
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if needPanic {
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panic(%s)
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return 5
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}
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return 7
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}
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`, need, message)
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}
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func getLogHandler(logs *[]string) vm.SyscallHandler {
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logID := emit.InteropNameToID([]byte("System.Runtime.Log"))
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return func(v *vm.VM, id uint32) error {
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if id != logID {
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return errors.New("syscall not found")
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}
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msg := v.Estack().Pop().String()
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*logs = append(*logs, msg)
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return nil
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}
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}
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