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https://github.com/matrix-org/sliding-sync.git
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33cf1542aa
Particularly as the server expands into multiple lists and filters, having a way to quickly detect off-by-one index errors is important, so add an assert() function which will panic() if SYNCV3_DEBUG=1 else log an angry message.
47 lines
801 B
Go
47 lines
801 B
Go
package internal
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import (
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"os"
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"testing"
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)
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func TestAssertion(t *testing.T) {
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os.Setenv("SYNCV3_DEBUG", "1")
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shouldPanic := true
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shouldNotPanic := false
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try(t, shouldNotPanic, func() {
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Assert("true does nothing", true)
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})
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try(t, shouldPanic, func() {
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Assert("false panics", false)
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})
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os.Setenv("SYNCV3_DEBUG", "0")
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try(t, shouldNotPanic, func() {
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Assert("true does nothing", true)
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})
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try(t, shouldNotPanic, func() {
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Assert("false does not panic if SYNCV3_DEBUG is not 1", false)
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})
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}
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func try(t *testing.T, shouldPanic bool, fn func()) {
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t.Helper()
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defer func() {
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t.Helper()
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err := recover()
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if err != nil {
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if shouldPanic {
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return
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}
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t.Fatalf("panic: %s", err)
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} else {
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if shouldPanic {
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t.Fatalf("function did not panic")
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}
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}
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}()
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fn()
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}
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