69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package lang
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import (
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"strings"
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"testing"
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)
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func TestGenerateStructuredCoroutines(t *testing.T) {
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prog, err := Parse(`package demo
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suspend fun load(): Int { delay(1); return 42 }
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fun main() {
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runBlocking {
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coroutineScope {
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launch { delay(1) }
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val result = async<Int> { return load() }
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println(result.await())
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}
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}
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}`)
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if err != nil {
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t.Fatal(err)
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}
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out, err := GenerateGo(prog)
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if err != nil {
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t.Fatal(err)
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}
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for _, want := range []string{"func load(gotlinScope *GotlinCoroutineScope) int", "gotlinScope.Delay(1)", "gotlinScope.Launch", "gotlinAsync[int]", "load(gotlinScope)", ".await()", "gotlinRunBlocking"} {
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if !strings.Contains(string(out), want) {
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t.Fatalf("missing %q:\n%s", want, out)
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}
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}
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}
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func TestSuspendFunctionRequiresScope(t *testing.T) {
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prog, err := Parse(`package demo
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suspend fun load(): Int { return 1 }
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fun main() { println(load()) }`)
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if err != nil {
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t.Fatal(err)
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}
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_, err = GenerateGo(prog)
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if err == nil || !strings.Contains(err.Error(), "requires a coroutine scope") {
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t.Fatalf("unexpected error: %v", err)
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}
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}
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func TestWorkerAndBareGoAreRemoved(t *testing.T) {
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for _, source := range []string{`package demo worker Counter { var count = 0 }`, `package demo fun main() { go println("x") }`} {
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if _, err := Parse(source); err == nil {
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t.Fatalf("deprecated concurrency syntax parsed: %s", source)
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}
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}
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}
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func TestRunBlockingCancelsAndJoinsChildrenOnPanic(t *testing.T) {
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prog, err := Parse(`package demo fun main() { runBlocking { launch { delay(1) }; panic("failed") } }`)
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if err != nil {
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t.Fatal(err)
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}
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out, err := GenerateGo(prog)
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if err != nil {
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t.Fatal(err)
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}
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for _, want := range []string{"scope.cancel()", "scope.workers.Wait()", "panic(value)", "gotlinRunBlocking"} {
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if !strings.Contains(string(out), want) {
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t.Fatalf("missing %q:\n%s", want, out)
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}
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}
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}
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