mirror of
https://github.com/restic/restic.git
synced 2024-08-23 20:57:24 +02:00
293 lines
5.4 KiB
Go
293 lines
5.4 KiB
Go
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package errors
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import (
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"fmt"
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"runtime"
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"testing"
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)
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var initpc, _, _, _ = runtime.Caller(0)
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func TestFrameLine(t *testing.T) {
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var tests = []struct {
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Frame
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want int
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}{{
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Frame(initpc),
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9,
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}, {
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func() Frame {
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var pc, _, _, _ = runtime.Caller(0)
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return Frame(pc)
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}(),
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20,
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}, {
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func() Frame {
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var pc, _, _, _ = runtime.Caller(1)
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return Frame(pc)
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}(),
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28,
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}, {
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Frame(0), // invalid PC
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0,
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}}
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for _, tt := range tests {
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got := tt.Frame.line()
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want := tt.want
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if want != got {
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t.Errorf("Frame(%v): want: %v, got: %v", uintptr(tt.Frame), want, got)
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}
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}
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}
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type X struct{}
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func (x X) val() Frame {
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var pc, _, _, _ = runtime.Caller(0)
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return Frame(pc)
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}
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func (x *X) ptr() Frame {
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var pc, _, _, _ = runtime.Caller(0)
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return Frame(pc)
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}
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func TestFrameFormat(t *testing.T) {
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var tests = []struct {
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Frame
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format string
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want string
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}{{
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Frame(initpc),
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"%s",
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"stack_test.go",
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}, {
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Frame(initpc),
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"%+s",
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"github.com/pkg/errors.init\n" +
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"\t.+/github.com/pkg/errors/stack_test.go",
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}, {
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Frame(0),
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"%s",
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"unknown",
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}, {
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Frame(0),
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"%+s",
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"unknown",
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}, {
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Frame(initpc),
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"%d",
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"9",
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}, {
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Frame(0),
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"%d",
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"0",
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}, {
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Frame(initpc),
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"%n",
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"init",
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}, {
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func() Frame {
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var x X
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return x.ptr()
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}(),
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"%n",
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`\(\*X\).ptr`,
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}, {
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func() Frame {
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var x X
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return x.val()
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}(),
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"%n",
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"X.val",
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}, {
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Frame(0),
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"%n",
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"",
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}, {
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Frame(initpc),
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"%v",
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"stack_test.go:9",
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}, {
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Frame(initpc),
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"%+v",
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"github.com/pkg/errors.init\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:9",
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}, {
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Frame(0),
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"%v",
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"unknown:0",
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}}
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for i, tt := range tests {
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testFormatRegexp(t, i, tt.Frame, tt.format, tt.want)
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}
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}
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func TestFuncname(t *testing.T) {
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tests := []struct {
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name, want string
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}{
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{"", ""},
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{"runtime.main", "main"},
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{"github.com/pkg/errors.funcname", "funcname"},
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{"funcname", "funcname"},
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{"io.copyBuffer", "copyBuffer"},
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{"main.(*R).Write", "(*R).Write"},
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}
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for _, tt := range tests {
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got := funcname(tt.name)
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want := tt.want
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if got != want {
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t.Errorf("funcname(%q): want: %q, got %q", tt.name, want, got)
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}
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}
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}
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func TestTrimGOPATH(t *testing.T) {
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var tests = []struct {
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Frame
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want string
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}{{
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Frame(initpc),
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"github.com/pkg/errors/stack_test.go",
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}}
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for i, tt := range tests {
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pc := tt.Frame.pc()
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fn := runtime.FuncForPC(pc)
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file, _ := fn.FileLine(pc)
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got := trimGOPATH(fn.Name(), file)
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testFormatRegexp(t, i, got, "%s", tt.want)
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}
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}
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func TestStackTrace(t *testing.T) {
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tests := []struct {
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err error
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want []string
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}{{
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New("ooh"), []string{
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"github.com/pkg/errors.TestStackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:172",
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},
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}, {
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Wrap(New("ooh"), "ahh"), []string{
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"github.com/pkg/errors.TestStackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:177", // this is the stack of Wrap, not New
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},
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}, {
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Cause(Wrap(New("ooh"), "ahh")), []string{
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"github.com/pkg/errors.TestStackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:182", // this is the stack of New
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},
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}, {
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func() error { return New("ooh") }(), []string{
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`github.com/pkg/errors.(func·009|TestStackTrace.func1)` +
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"\n\t.+/github.com/pkg/errors/stack_test.go:187", // this is the stack of New
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"github.com/pkg/errors.TestStackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:187", // this is the stack of New's caller
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},
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}, {
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Cause(func() error {
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return func() error {
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return Errorf("hello %s", fmt.Sprintf("world"))
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}()
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}()), []string{
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`github.com/pkg/errors.(func·010|TestStackTrace.func2.1)` +
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"\n\t.+/github.com/pkg/errors/stack_test.go:196", // this is the stack of Errorf
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`github.com/pkg/errors.(func·011|TestStackTrace.func2)` +
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"\n\t.+/github.com/pkg/errors/stack_test.go:197", // this is the stack of Errorf's caller
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"github.com/pkg/errors.TestStackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:198", // this is the stack of Errorf's caller's caller
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},
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}}
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for i, tt := range tests {
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x, ok := tt.err.(interface {
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StackTrace() StackTrace
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})
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if !ok {
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t.Errorf("expected %#v to implement StackTrace() StackTrace", tt.err)
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continue
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}
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st := x.StackTrace()
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for j, want := range tt.want {
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testFormatRegexp(t, i, st[j], "%+v", want)
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}
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}
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}
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func stackTrace() StackTrace {
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const depth = 8
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var pcs [depth]uintptr
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n := runtime.Callers(1, pcs[:])
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var st stack = pcs[0:n]
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return st.StackTrace()
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}
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func TestStackTraceFormat(t *testing.T) {
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tests := []struct {
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StackTrace
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format string
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want string
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}{{
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nil,
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"%s",
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`\[\]`,
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}, {
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nil,
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"%v",
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`\[\]`,
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}, {
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nil,
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"%+v",
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"",
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}, {
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nil,
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"%#v",
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`\[\]errors.Frame\(nil\)`,
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}, {
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make(StackTrace, 0),
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"%s",
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`\[\]`,
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}, {
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make(StackTrace, 0),
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"%v",
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`\[\]`,
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}, {
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make(StackTrace, 0),
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"%+v",
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"",
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}, {
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make(StackTrace, 0),
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"%#v",
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`\[\]errors.Frame{}`,
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}, {
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stackTrace()[:2],
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"%s",
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`\[stack_test.go stack_test.go\]`,
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}, {
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stackTrace()[:2],
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"%v",
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`\[stack_test.go:225 stack_test.go:272\]`,
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}, {
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stackTrace()[:2],
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"%+v",
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"\n" +
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"github.com/pkg/errors.stackTrace\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:225\n" +
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"github.com/pkg/errors.TestStackTraceFormat\n" +
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"\t.+/github.com/pkg/errors/stack_test.go:276",
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}, {
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stackTrace()[:2],
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"%#v",
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`\[\]errors.Frame{stack_test.go:225, stack_test.go:284}`,
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}}
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for i, tt := range tests {
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testFormatRegexp(t, i, tt.StackTrace, tt.format, tt.want)
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}
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}
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