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clock_test.go
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clock_test.go
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package wasi_snapshot_preview1
import (
_ "embed"
"testing"
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/internal/testing/require"
)
func Test_clockResGet(t *testing.T) {
mod, r, log := requireProxyModule(t, wazero.NewModuleConfig())
defer r.Close(testCtx)
expectedMemoryMicro := []byte{
'?', // resultResolution is after this
0xe8, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // little endian-encoded resolution (fixed to 1000).
'?', // stopped after encoding
}
expectedMemoryNano := []byte{
'?', // resultResolution is after this
0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // little endian-encoded resolution (fixed to 1000).
'?', // stopped after encoding
}
tests := []struct {
name string
clockID uint32
expectedMemory []byte
expectedLog string
}{
{
name: "Realtime",
clockID: clockIDRealtime,
expectedMemory: expectedMemoryMicro,
expectedLog: `
--> proxy.clock_res_get(id=0,result.resolution=1)
==> wasi_snapshot_preview1.clock_res_get(id=0,result.resolution=1)
<== ESUCCESS
<-- (0)
`,
},
{
name: "Monotonic",
clockID: clockIDMonotonic,
expectedMemory: expectedMemoryNano,
expectedLog: `
--> proxy.clock_res_get(id=1,result.resolution=1)
==> wasi_snapshot_preview1.clock_res_get(id=1,result.resolution=1)
<== ESUCCESS
<-- (0)
`,
},
}
for _, tt := range tests {
tc := tt
t.Run(tc.name, func(t *testing.T) {
defer log.Reset()
maskMemory(t, testCtx, mod, len(tc.expectedMemory))
resultResolution := uint32(1) // arbitrary offset
requireErrno(t, ErrnoSuccess, mod, functionClockResGet, uint64(tc.clockID), uint64(resultResolution))
require.Equal(t, tc.expectedLog, "\n"+log.String())
actual, ok := mod.Memory().Read(testCtx, 0, uint32(len(tc.expectedMemory)))
require.True(t, ok)
require.Equal(t, tc.expectedMemory, actual)
})
}
}
func Test_clockResGet_Unsupported(t *testing.T) {
mod, r, log := requireProxyModule(t, wazero.NewModuleConfig())
defer r.Close(testCtx)
tests := []struct {
name string
clockID uint32
expectedErrno Errno
expectedLog string
}{
{
name: "process cputime",
clockID: 2,
expectedErrno: ErrnoNotsup,
expectedLog: `
--> proxy.clock_res_get(id=2,result.resolution=1)
==> wasi_snapshot_preview1.clock_res_get(id=2,result.resolution=1)
<== ENOTSUP
<-- (58)
`,
},
{
name: "thread cputime",
clockID: 3,
expectedErrno: ErrnoNotsup,
expectedLog: `
--> proxy.clock_res_get(id=3,result.resolution=1)
==> wasi_snapshot_preview1.clock_res_get(id=3,result.resolution=1)
<== ENOTSUP
<-- (58)
`,
},
{
name: "undefined",
clockID: 100,
expectedErrno: ErrnoInval,
expectedLog: `
--> proxy.clock_res_get(id=100,result.resolution=1)
==> wasi_snapshot_preview1.clock_res_get(id=100,result.resolution=1)
<== EINVAL
<-- (28)
`,
},
}
for _, tt := range tests {
tc := tt
t.Run(tc.name, func(t *testing.T) {
defer log.Reset()
resultResolution := uint32(1) // arbitrary offset
requireErrno(t, tc.expectedErrno, mod, functionClockResGet, uint64(tc.clockID), uint64(resultResolution))
require.Equal(t, tc.expectedLog, "\n"+log.String())
})
}
}
func Test_clockTimeGet(t *testing.T) {
mod, r, log := requireProxyModule(t, wazero.NewModuleConfig())
defer r.Close(testCtx)
tests := []struct {
name string
clockID uint32
expectedMemory []byte
expectedLog string
}{
{
name: "Realtime",
clockID: clockIDRealtime,
expectedMemory: []byte{
'?', // resultTimestamp is after this
0x0, 0x0, 0x1f, 0xa6, 0x70, 0xfc, 0xc5, 0x16, // little endian-encoded epochNanos
'?', // stopped after encoding
},
expectedLog: `
--> proxy.clock_time_get(id=0,precision=0,result.timestamp=1)
==> wasi_snapshot_preview1.clock_time_get(id=0,precision=0,result.timestamp=1)
<== ESUCCESS
<-- (0)
`,
},
{
name: "Monotonic",
clockID: clockIDMonotonic,
expectedMemory: []byte{
'?', // resultTimestamp is after this
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // fake nanotime starts at zero
'?', // stopped after encoding
},
expectedLog: `
--> proxy.clock_time_get(id=1,precision=0,result.timestamp=1)
==> wasi_snapshot_preview1.clock_time_get(id=1,precision=0,result.timestamp=1)
<== ESUCCESS
<-- (0)
`,
},
}
for _, tt := range tests {
tc := tt
t.Run(tc.name, func(t *testing.T) {
defer log.Reset()
maskMemory(t, testCtx, mod, len(tc.expectedMemory))
resultTimestamp := uint32(1) // arbitrary offset
requireErrno(t, ErrnoSuccess, mod, functionClockTimeGet, uint64(tc.clockID), 0 /* TODO: precision */, uint64(resultTimestamp))
require.Equal(t, tc.expectedLog, "\n"+log.String())
actual, ok := mod.Memory().Read(testCtx, 0, uint32(len(tc.expectedMemory)))
require.True(t, ok)
require.Equal(t, tc.expectedMemory, actual)
})
}
}
func Test_clockTimeGet_Unsupported(t *testing.T) {
mod, r, log := requireProxyModule(t, wazero.NewModuleConfig())
defer r.Close(testCtx)
tests := []struct {
name string
clockID uint32
expectedErrno Errno
expectedLog string
}{
{
name: "process cputime",
clockID: 2,
expectedErrno: ErrnoNotsup,
expectedLog: `
--> proxy.clock_time_get(id=2,precision=0,result.timestamp=1)
==> wasi_snapshot_preview1.clock_time_get(id=2,precision=0,result.timestamp=1)
<== ENOTSUP
<-- (58)
`,
},
{
name: "thread cputime",
clockID: 3,
expectedErrno: ErrnoNotsup,
expectedLog: `
--> proxy.clock_time_get(id=3,precision=0,result.timestamp=1)
==> wasi_snapshot_preview1.clock_time_get(id=3,precision=0,result.timestamp=1)
<== ENOTSUP
<-- (58)
`,
},
{
name: "undefined",
clockID: 100,
expectedErrno: ErrnoInval,
expectedLog: `
--> proxy.clock_time_get(id=100,precision=0,result.timestamp=1)
==> wasi_snapshot_preview1.clock_time_get(id=100,precision=0,result.timestamp=1)
<== EINVAL
<-- (28)
`,
},
}
for _, tt := range tests {
tc := tt
t.Run(tc.name, func(t *testing.T) {
defer log.Reset()
resultTimestamp := uint32(1) // arbitrary offset
requireErrno(t, tc.expectedErrno, mod, functionClockTimeGet, uint64(tc.clockID), uint64(0) /* TODO: precision */, uint64(resultTimestamp))
require.Equal(t, tc.expectedLog, "\n"+log.String())
})
}
}
func Test_clockTimeGet_Errors(t *testing.T) {
mod, r, log := requireProxyModule(t, wazero.NewModuleConfig())
defer r.Close(testCtx)
memorySize := mod.Memory().Size(testCtx)
tests := []struct {
name string
resultTimestamp, argvBufSize uint32
expectedLog string
}{
{
name: "resultTimestamp out-of-memory",
resultTimestamp: memorySize,
expectedLog: `
--> proxy.clock_time_get(id=0,precision=0,result.timestamp=65536)
==> wasi_snapshot_preview1.clock_time_get(id=0,precision=0,result.timestamp=65536)
<== EFAULT
<-- (21)
`,
},
{
name: "resultTimestamp exceeds the maximum valid address by 1",
resultTimestamp: memorySize - 4 + 1, // 4 is the size of uint32, the type of the count of args
expectedLog: `
--> proxy.clock_time_get(id=0,precision=0,result.timestamp=65533)
==> wasi_snapshot_preview1.clock_time_get(id=0,precision=0,result.timestamp=65533)
<== EFAULT
<-- (21)
`,
},
}
for _, tt := range tests {
tc := tt
t.Run(tc.name, func(t *testing.T) {
defer log.Reset()
requireErrno(t, ErrnoFault, mod, functionClockTimeGet, uint64(0) /* TODO: id */, uint64(0) /* TODO: precision */, uint64(tc.resultTimestamp))
require.Equal(t, tc.expectedLog, "\n"+log.String())
})
}
}