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Add example that uses accessor functions.

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This commit is contained in:
Alex Helfet 2017-03-27 04:20:38 +01:00
parent f7cd5685aa
commit 953031233b
1 changed files with 41 additions and 1 deletions
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42
tests/example-test.cpp
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@ -31,6 +31,12 @@ static capn_text chars_to_text(const char *chars) {
EXPECT_STREQ((expected), (t).str); \
} while(0);
// Demonstrates serializing an object tree to a byte array, then deserializing it
// back into an object tree and asserting on the expected values therein.
//
// This example uses generated read_*, write_*, get_*, set_* functions
// to deserialize into structs.
TEST(Examples, RoundTripPerson) {
uint8_t buf[4096];
ssize_t sz = 0;
@ -113,4 +119,38 @@ TEST(Examples, RoundTripPerson) {
}
}
// TODO: Accessor read/write vs read_/write_.
// Demonstrate accessing serialized objects using accessor functions without
// first copying values into structs.
TEST(Examples, PersonWithAccessors) {
struct capn c;
capn_init_malloc(&c);
capn_ptr cr = capn_root(&c);
struct capn_segment *cs = cr.seg;
// Set fields with set_ accessors.
Person_ptr pp = new_Person(cs);
{
Person_set_id(pp, 17);
capn_text name = chars_to_text("Name");
EXPECT_CAPN_TEXT_EQ("Name", name);
Person_set_name(pp, name);
Person_PhoneNumber_list pnl = new_Person_PhoneNumber_list(cs, 1);
Person_set_phones(pp, pnl);
Person_PhoneNumber_ptr pn0;
pn0.p = capn_getp(pnl.p, 0 /* offset */, 0 /* resolve */);
Person_PhoneNumber_set_type(pn0, Person_PhoneNumber_Type_home);
}
// Assert field values returned by get_ accessors.
{
EXPECT_EQ(Person_get_id(pp), 17);
EXPECT_CAPN_TEXT_EQ("Name", Person_get_name(pp));
Person_PhoneNumber_list pnl = Person_get_phones(pp);
Person_PhoneNumber_ptr pn0;
pn0.p = capn_getp(pnl.p, 0 /* offset */, 0 /* resolve */);
EXPECT_EQ(Person_PhoneNumber_Type_home, Person_PhoneNumber_get_type(pn0));
}
}