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Diffstat (limited to 'tests/test-opts-visitor.c')
| -rw-r--r-- | tests/test-opts-visitor.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/tests/test-opts-visitor.c b/tests/test-opts-visitor.c new file mode 100644 index 0000000000..9f902b597e --- /dev/null +++ b/tests/test-opts-visitor.c @@ -0,0 +1,275 @@ +/* + * 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, 0); + 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 == 0xBADC0FFEE0DDF00D); + + 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; +} |