4ca0858e57
This centralizes filestat logic by making our own `Stat_t` similar to `syscall.Stat_t`. This exposes utilities in the platform package and adds a new function `FS.Stat` which avoids having to use `fs.File` to get the same info. Doing so at the FS abstraction allows us to optimize how it is implemented internally using portable means (e.g. `os.StatFile`) or OS-specific means where necessary, e.g. in windows. This also ensures `platform.OpenFile` returns syscall.Errno and centralizes error checking with a new `require.EqualErrno` test. Signed-off-by: Adrian Cole <adrian@tetrate.io>
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package require
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import (
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"io"
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"runtime"
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"syscall"
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"testing"
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)
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func TestEqualErrno(t *testing.T) {
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// This specifically chooses ENOENT and EIO as outside windows, they tend
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// to have the same errno literal and text message.
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if runtime.GOOS == "windows" {
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t.Skipf("error literals are different on windows")
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}
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tests := []struct {
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name string
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require func(TestingT)
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expectedLog string
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}{
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{
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name: "EqualErrno passes on equal",
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require: func(t TestingT) {
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EqualErrno(t, syscall.ENOENT, syscall.ENOENT)
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},
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},
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{
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name: "EqualErrno fails on nil",
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require: func(t TestingT) {
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EqualErrno(t, syscall.ENOENT, nil)
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},
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expectedLog: "expected a syscall.Errno, but was nil",
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},
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{
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name: "EqualErrno fails on not Errno",
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require: func(t TestingT) {
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EqualErrno(t, syscall.ENOENT, io.EOF)
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},
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expectedLog: `expected EOF to be a syscall.Errno`,
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},
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{
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name: "EqualErrno fails on not equal",
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require: func(t TestingT) {
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EqualErrno(t, syscall.ENOENT, syscall.EIO)
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},
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expectedLog: `expected Errno 0x2(no such file or directory), but was 0x5(input/output error)`,
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},
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{
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name: "EqualErrno fails on not equal with format",
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require: func(t TestingT) {
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EqualErrno(t, syscall.ENOENT, syscall.EIO, "pay me %d", 5)
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},
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expectedLog: `expected Errno 0x2(no such file or directory), but was 0x5(input/output error): pay me 5`,
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},
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}
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for _, tt := range tests {
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tc := tt
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t.Run(tc.name, func(t *testing.T) {
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m := &mockT{t: t}
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tc.require(m)
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m.require(tc.expectedLog)
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})
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}
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}
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