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[Qemu-devel] [PATCH 2/2] coroutine: add check-coroutine automated tests
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 2/2] coroutine: add check-coroutine automated tests |
Date: |
Wed, 11 May 2011 11:15:25 +0100 |
To run automated tests for coroutines:
make check-coroutine
./check-coroutine
On success the program terminates with exit status 0. On failure an
error message is written to stderr and the program exits with exit
status 1.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
Makefile | 3 +-
check-coroutine.c | 188 +++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 190 insertions(+), 1 deletions(-)
create mode 100644 check-coroutine.c
diff --git a/Makefile b/Makefile
index 67c0268..27ec6a1 100644
--- a/Makefile
+++ b/Makefile
@@ -130,7 +130,7 @@ qemu-io$(EXESUF): qemu-io.o cmd.o qemu-tool.o qemu-error.o
$(oslib-obj-y) $(trac
qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@," GEN
$@")
-check-qint.o check-qstring.o check-qdict.o check-qlist.o check-qfloat.o
check-qjson.o: $(GENERATED_HEADERS)
+check-qint.o check-qstring.o check-qdict.o check-qlist.o check-qfloat.o
check-qjson.o check-coroutine.o: $(GENERATED_HEADERS)
CHECK_PROG_DEPS = qemu-malloc.o $(oslib-obj-y) $(trace-obj-y)
@@ -140,6 +140,7 @@ check-qdict: check-qdict.o qdict.o qfloat.o qint.o
qstring.o qbool.o qlist.o $(C
check-qlist: check-qlist.o qlist.o qint.o $(CHECK_PROG_DEPS)
check-qfloat: check-qfloat.o qfloat.o $(CHECK_PROG_DEPS)
check-qjson: check-qjson.o qfloat.o qint.o qdict.o qstring.o qlist.o qbool.o
qjson.o json-streamer.o json-lexer.o json-parser.o $(CHECK_PROG_DEPS)
+check-coroutine: check-coroutine.o $(coroutine-obj-y) $(CHECK_PROG_DEPS)
QEMULIBS=libhw32 libhw64 libuser libdis libdis-user
diff --git a/check-coroutine.c b/check-coroutine.c
new file mode 100644
index 0000000..f65ac2e
--- /dev/null
+++ b/check-coroutine.c
@@ -0,0 +1,188 @@
+/*
+ * Coroutine tests
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Stefan Hajnoczi <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "qemu-coroutine.h"
+
+static const char *cur_test_name;
+
+static void test_assert(bool condition, const char *msg)
+{
+ if (!condition) {
+ fprintf(stderr, "%s: %s\n", cur_test_name, msg);
+ exit(EXIT_FAILURE);
+ }
+}
+
+/*
+ * Check that qemu_in_coroutine() works
+ */
+
+static void coroutine_fn verify_in_coroutine(void *opaque)
+{
+ test_assert(qemu_in_coroutine(), "expected coroutine context");
+}
+
+static void test_in_coroutine(void)
+{
+ Coroutine *coroutine;
+
+ test_assert(!qemu_in_coroutine(), "expected no coroutine context");
+
+ coroutine = qemu_coroutine_create(verify_in_coroutine);
+ qemu_coroutine_enter(coroutine, NULL);
+}
+
+/*
+ * Check that qemu_coroutine_self() works
+ */
+
+static void coroutine_fn verify_self(void *opaque)
+{
+ test_assert(qemu_coroutine_self() == opaque,
+ "qemu_coroutine_self() did not return this coroutine");
+}
+
+static void test_self(void)
+{
+ Coroutine *coroutine;
+
+ coroutine = qemu_coroutine_create(verify_self);
+ qemu_coroutine_enter(coroutine, coroutine);
+}
+
+/*
+ * Check that coroutines may nest multiple levels
+ */
+
+typedef struct {
+ unsigned int n_enter; /* num coroutines entered */
+ unsigned int n_return; /* num coroutines returned */
+ unsigned int max; /* maximum level of nesting */
+} NestData;
+
+static void coroutine_fn nest(void *opaque)
+{
+ NestData *nd = opaque;
+
+ nd->n_enter++;
+
+ if (nd->n_enter < nd->max) {
+ Coroutine *child;
+
+ child = qemu_coroutine_create(nest);
+ qemu_coroutine_enter(child, nd);
+ }
+
+ nd->n_return++;
+}
+
+static void test_nesting(void)
+{
+ Coroutine *root;
+ NestData nd = {
+ .n_enter = 0,
+ .n_return = 0,
+ .max = 1,
+ };
+
+ root = qemu_coroutine_create(nest);
+ qemu_coroutine_enter(root, &nd);
+
+ test_assert(nd.n_enter == nd.max,
+ "failed entering to max nesting level");
+ test_assert(nd.n_return == nd.max,
+ "failed returning from max nesting level");
+}
+
+/*
+ * Check that yield/enter transfer control correctly
+ */
+
+static void coroutine_fn yield_5_times(void *opaque)
+{
+ bool *done = opaque;
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ qemu_coroutine_yield();
+ }
+ *done = true;
+}
+
+static void test_yield(void)
+{
+ Coroutine *coroutine;
+ bool done = false;
+ int i = -1; /* one extra time to return from coroutine */
+
+ coroutine = qemu_coroutine_create(yield_5_times);
+ while (!done) {
+ qemu_coroutine_enter(coroutine, &done);
+ i++;
+ }
+ test_assert(i == 5, "coroutine did not yield 5 times");
+}
+
+/*
+ * Check that creation, enter, and return work
+ */
+
+static void coroutine_fn set_and_exit(void *opaque)
+{
+ bool *done = opaque;
+
+ *done = true;
+}
+
+static void test_lifecycle(void)
+{
+ Coroutine *coroutine;
+ bool done = false;
+
+ /* Create, enter, and return from coroutine */
+ coroutine = qemu_coroutine_create(set_and_exit);
+ qemu_coroutine_enter(coroutine, &done);
+ test_assert(done, "expected done to be true (first time)");
+
+ /* Repeat to check that no state affects this test */
+ done = false;
+ coroutine = qemu_coroutine_create(set_and_exit);
+ qemu_coroutine_enter(coroutine, &done);
+ test_assert(done, "expected done to be true (second time)");
+}
+
+#define TESTCASE(fn) { #fn, fn }
+int main(int argc, char **argv)
+{
+ static struct {
+ const char *name;
+ void (*run)(void);
+ } testcases[] = {
+ TESTCASE(test_lifecycle),
+ TESTCASE(test_yield),
+ TESTCASE(test_nesting),
+ TESTCASE(test_self),
+ TESTCASE(test_in_coroutine),
+ {},
+ };
+ int i;
+
+ for (i = 0; testcases[i].name; i++) {
+ cur_test_name = testcases[i].name;
+ printf("%s\n", testcases[i].name);
+ testcases[i].run();
+ }
+ return EXIT_SUCCESS;
+}
--
1.7.4.4
- [Qemu-devel] [PATCH 0/2] Coroutines for better asynchronous programming, Stefan Hajnoczi, 2011/05/11
- [Qemu-devel] [PATCH 2/2] coroutine: add check-coroutine automated tests,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Stefan Hajnoczi, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Kevin Wolf, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Paolo Bonzini, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Kevin Wolf, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Anthony Liguori, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Paolo Bonzini, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Anthony Liguori, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Paolo Bonzini, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Daniel P. Berrange, 2011/05/11
- Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines, Jamie Lokier, 2011/05/24