libgo/go/runtime/panic_test.go

   1 // Copyright 2020 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package runtime_test
   6
   7 import (
   8         "strings"
   9         "testing"
  10 )
  11
  12 // Test that panics print out the underlying value
  13 // when the underlying kind is directly printable.
  14 // Issue: https://golang.org/issues/37531
  15 func TestPanicWithDirectlyPrintableCustomTypes(t *testing.T) {
  16         tests := []struct {
  17                 name            string
  18                 wantPanicPrefix string
  19         }{
  20                 {"panicCustomBool", `panic: main.MyBool(true)`},
  21                 {"panicCustomComplex128", `panic: main.MyComplex128(+3.210000e+001+1.000000e+001i)`},
  22                 {"panicCustomComplex64", `panic: main.MyComplex64(+1.100000e-001+3.000000e+000i)`},
  23                 {"panicCustomFloat32", `panic: main.MyFloat32(-9.370000e+001)`},
  24                 {"panicCustomFloat64", `panic: main.MyFloat64(-9.370000e+001)`},
  25                 {"panicCustomInt", `panic: main.MyInt(93)`},
  26                 {"panicCustomInt8", `panic: main.MyInt8(93)`},
  27                 {"panicCustomInt16", `panic: main.MyInt16(93)`},
  28                 {"panicCustomInt32", `panic: main.MyInt32(93)`},
  29                 {"panicCustomInt64", `panic: main.MyInt64(93)`},
  30                 {"panicCustomString", `panic: main.MyString("Panic")`},
  31                 {"panicCustomUint", `panic: main.MyUint(93)`},
  32                 {"panicCustomUint8", `panic: main.MyUint8(93)`},
  33                 {"panicCustomUint16", `panic: main.MyUint16(93)`},
  34                 {"panicCustomUint32", `panic: main.MyUint32(93)`},
  35                 {"panicCustomUint64", `panic: main.MyUint64(93)`},
  36                 {"panicCustomUintptr", `panic: main.MyUintptr(93)`},
  37         }
  38
  39         for _, tt := range tests {
  40                 t := t
  41                 t.Run(tt.name, func(t *testing.T) {
  42                         output := runTestProg(t, "testprog", tt.name)
  43                         if !strings.HasPrefix(output, tt.wantPanicPrefix) {
  44                                 t.Fatalf("%q\nis not present in\n%s", tt.wantPanicPrefix, output)
  45                         }
  46                 })
  47         }
  48 }