--- /dev/null
+/*
+ * Options Visitor unit-tests.
+ *
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * Authors:
+ * Laszlo Ersek <lersek@redhat.com> (based on test-string-output-visitor)
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <glib.h>
+
+#include "qemu/config-file.h" /* qemu_add_opts() */
+#include "qemu/option.h" /* qemu_opts_parse() */
+#include "qapi/opts-visitor.h" /* opts_visitor_new() */
+#include "test-qapi-visit.h" /* visit_type_UserDefOptions() */
+#include "qapi/dealloc-visitor.h" /* qapi_dealloc_visitor_new() */
+
+static QemuOptsList userdef_opts = {
+ .name = "userdef",
+ .head = QTAILQ_HEAD_INITIALIZER(userdef_opts.head),
+ .desc = { { 0 } } /* validated with OptsVisitor */
+};
+
+/* fixture (= glib test case context) and test case manipulation */
+
+typedef struct OptsVisitorFixture {
+ UserDefOptions *userdef;
+ Error *err;
+} OptsVisitorFixture;
+
+
+static void
+setup_fixture(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ const char *opts_string = test_data;
+ QemuOpts *opts;
+ OptsVisitor *ov;
+
+ opts = qemu_opts_parse(qemu_find_opts("userdef"), opts_string, false,
+ NULL);
+ g_assert(opts != NULL);
+
+ ov = opts_visitor_new(opts);
+ visit_type_UserDefOptions(opts_get_visitor(ov), &f->userdef, NULL,
+ &f->err);
+ opts_visitor_cleanup(ov);
+ qemu_opts_del(opts);
+}
+
+
+static void
+teardown_fixture(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ if (f->userdef != NULL) {
+ QapiDeallocVisitor *dv;
+
+ dv = qapi_dealloc_visitor_new();
+ visit_type_UserDefOptions(qapi_dealloc_get_visitor(dv), &f->userdef,
+ NULL, NULL);
+ qapi_dealloc_visitor_cleanup(dv);
+ }
+ error_free(f->err);
+}
+
+
+static void
+add_test(const char *testpath,
+ void (*test_func)(OptsVisitorFixture *f, gconstpointer test_data),
+ gconstpointer test_data)
+{
+ g_test_add(testpath, OptsVisitorFixture, test_data, setup_fixture,
+ test_func, teardown_fixture);
+}
+
+/* test output evaluation */
+
+static void
+expect_ok(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ g_assert(f->err == NULL);
+ g_assert(f->userdef != NULL);
+}
+
+
+static void
+expect_fail(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ g_assert(f->err != NULL);
+
+ /* The error message is printed when this test utility is invoked directly
+ * (ie. without gtester) and the --verbose flag is passed:
+ *
+ * tests/test-opts-visitor --verbose
+ */
+ g_test_message("'%s': %s", (const char *)test_data,
+ error_get_pretty(f->err));
+}
+
+
+static void
+test_value(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ uint64_t magic, bitval;
+ intList *i64;
+ uint64List *u64;
+ uint16List *u16;
+
+ expect_ok(f, test_data);
+
+ magic = 0;
+ for (i64 = f->userdef->i64; i64 != NULL; i64 = i64->next) {
+ g_assert(-16 <= i64->value && i64->value < 64-16);
+ bitval = 1ull << (i64->value + 16);
+ g_assert((magic & bitval) == 0);
+ magic |= bitval;
+ }
+ g_assert(magic == 0xDEADBEEF);
+
+ magic = 0;
+ for (u64 = f->userdef->u64; u64 != NULL; u64 = u64->next) {
+ g_assert(u64->value < 64);
+ bitval = 1ull << u64->value;
+ g_assert((magic & bitval) == 0);
+ magic |= bitval;
+ }
+ g_assert(magic == 0xBADC0FFEE0DDF00DULL);
+
+ magic = 0;
+ for (u16 = f->userdef->u16; u16 != NULL; u16 = u16->next) {
+ g_assert(u16->value < 64);
+ bitval = 1ull << u16->value;
+ g_assert((magic & bitval) == 0);
+ magic |= bitval;
+ }
+ g_assert(magic == 0xD15EA5E);
+}
+
+
+static void
+expect_i64_min(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ expect_ok(f, test_data);
+ g_assert(f->userdef->has_i64);
+ g_assert(f->userdef->i64->next == NULL);
+ g_assert(f->userdef->i64->value == INT64_MIN);
+}
+
+
+static void
+expect_i64_max(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ expect_ok(f, test_data);
+ g_assert(f->userdef->has_i64);
+ g_assert(f->userdef->i64->next == NULL);
+ g_assert(f->userdef->i64->value == INT64_MAX);
+}
+
+
+static void
+expect_zero(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ expect_ok(f, test_data);
+ g_assert(f->userdef->has_u64);
+ g_assert(f->userdef->u64->next == NULL);
+ g_assert(f->userdef->u64->value == 0);
+}
+
+
+static void
+expect_u64_max(OptsVisitorFixture *f, gconstpointer test_data)
+{
+ expect_ok(f, test_data);
+ g_assert(f->userdef->has_u64);
+ g_assert(f->userdef->u64->next == NULL);
+ g_assert(f->userdef->u64->value == UINT64_MAX);
+}
+
+/* test cases */
+
+int
+main(int argc, char **argv)
+{
+ g_test_init(&argc, &argv, NULL);
+
+ qemu_add_opts(&userdef_opts);
+
+ /* Three hexadecimal magic numbers, "dead beef", "bad coffee, odd food" and
+ * "disease", from
+ * <http://en.wikipedia.org/wiki/Magic_number_%28programming%29>, were
+ * converted to binary and dissected into bit ranges. Each magic number is
+ * going to be recomposed using the lists called "i64", "u64" and "u16",
+ * respectively.
+ *
+ * (Note that these types pertain to the individual bit shift counts, not
+ * the magic numbers themselves; the intent is to exercise opts_type_int()
+ * and opts_type_uint64().)
+ *
+ * The "i64" shift counts have been decreased by 16 (decimal) in order to
+ * test negative values as well. Finally, the full list of QemuOpt elements
+ * has been permuted with "shuf".
+ *
+ * Both "i64" and "u64" have some (distinct) single-element ranges
+ * represented as both "a" and "a-a". "u16" is a special case of "i64" (see
+ * visit_type_uint16()), so it wouldn't add a separate test in this regard.
+ */
+
+ add_test("/visitor/opts/flatten/value", &test_value,
+ "i64=-1-0,u64=12-16,u64=2-3,i64=-11--9,u64=57,u16=9,i64=5-5,"
+ "u16=1-4,u16=20,u64=63-63,i64=-16--13,u64=50-52,i64=14-15,u16=11,"
+ "i64=7,u16=18,i64=2-3,u16=6,u64=54-55,u64=0,u64=18-20,u64=33-43,"
+ "i64=9-12,u16=26-27,u64=59-61,u16=13-16,u64=29-31,u64=22-23,"
+ "u16=24,i64=-7--3");
+
+ add_test("/visitor/opts/i64/val1/errno", &expect_fail,
+ "i64=0x8000000000000000");
+ add_test("/visitor/opts/i64/val1/empty", &expect_fail, "i64=");
+ add_test("/visitor/opts/i64/val1/trailing", &expect_fail, "i64=5z");
+ add_test("/visitor/opts/i64/nonlist", &expect_fail, "i64x=5-6");
+ add_test("/visitor/opts/i64/val2/errno", &expect_fail,
+ "i64=0x7fffffffffffffff-0x8000000000000000");
+ add_test("/visitor/opts/i64/val2/empty", &expect_fail, "i64=5-");
+ add_test("/visitor/opts/i64/val2/trailing", &expect_fail, "i64=5-6z");
+ add_test("/visitor/opts/i64/range/empty", &expect_fail, "i64=6-5");
+ add_test("/visitor/opts/i64/range/minval", &expect_i64_min,
+ "i64=-0x8000000000000000--0x8000000000000000");
+ add_test("/visitor/opts/i64/range/maxval", &expect_i64_max,
+ "i64=0x7fffffffffffffff-0x7fffffffffffffff");
+
+ add_test("/visitor/opts/u64/val1/errno", &expect_fail, "u64=-1");
+ add_test("/visitor/opts/u64/val1/empty", &expect_fail, "u64=");
+ add_test("/visitor/opts/u64/val1/trailing", &expect_fail, "u64=5z");
+ add_test("/visitor/opts/u64/nonlist", &expect_fail, "u64x=5-6");
+ add_test("/visitor/opts/u64/val2/errno", &expect_fail,
+ "u64=0xffffffffffffffff-0x10000000000000000");
+ add_test("/visitor/opts/u64/val2/empty", &expect_fail, "u64=5-");
+ add_test("/visitor/opts/u64/val2/trailing", &expect_fail, "u64=5-6z");
+ add_test("/visitor/opts/u64/range/empty", &expect_fail, "u64=6-5");
+ add_test("/visitor/opts/u64/range/minval", &expect_zero, "u64=0-0");
+ add_test("/visitor/opts/u64/range/maxval", &expect_u64_max,
+ "u64=0xffffffffffffffff-0xffffffffffffffff");
+
+ /* Test maximum range sizes. The macro value is open-coded here
+ * *intentionally*; the test case must use concrete values by design. If
+ * OPTS_VISITOR_RANGE_MAX is changed, the following values need to be
+ * recalculated as well. The assert and this comment should help with it.
+ */
+ g_assert(OPTS_VISITOR_RANGE_MAX == 65536);
+
+ /* The unsigned case is simple, a u64-u64 difference can always be
+ * represented as a u64.
+ */
+ add_test("/visitor/opts/u64/range/max", &expect_ok, "u64=0-65535");
+ add_test("/visitor/opts/u64/range/2big", &expect_fail, "u64=0-65536");
+
+ /* The same cannot be said about an i64-i64 difference. */
+ add_test("/visitor/opts/i64/range/max/pos/a", &expect_ok,
+ "i64=0x7fffffffffff0000-0x7fffffffffffffff");
+ add_test("/visitor/opts/i64/range/max/pos/b", &expect_ok,
+ "i64=0x7ffffffffffeffff-0x7ffffffffffffffe");
+ add_test("/visitor/opts/i64/range/2big/pos", &expect_fail,
+ "i64=0x7ffffffffffeffff-0x7fffffffffffffff");
+ add_test("/visitor/opts/i64/range/max/neg/a", &expect_ok,
+ "i64=-0x8000000000000000--0x7fffffffffff0001");
+ add_test("/visitor/opts/i64/range/max/neg/b", &expect_ok,
+ "i64=-0x7fffffffffffffff--0x7fffffffffff0000");
+ add_test("/visitor/opts/i64/range/2big/neg", &expect_fail,
+ "i64=-0x8000000000000000--0x7fffffffffff0000");
+ add_test("/visitor/opts/i64/range/2big/full", &expect_fail,
+ "i64=-0x8000000000000000-0x7fffffffffffffff");
+
+ g_test_run();
+ return 0;
+}
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