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pca9552-test: do not rely on state across tests

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receive_autoinc is relying on the LED state that is set by
send_and_receive.  Stop doing that, because qgraph resets the
machine between tests.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-03-18 14:56:21 +01:00
parent 05095ece6f
commit eadcd3b252
1 changed files with 11 additions and 4 deletions
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15
tests/pca9552-test.c
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@ -18,11 +18,20 @@
static I2CAdapter *i2c;
static void pca9552_init(I2CAdapter *i2c)
{
/* Switch on LEDs 0 and 12 */
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0, 0x54);
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3, 0x54);
}
static void receive_autoinc(void)
{
uint8_t resp;
uint8_t reg = PCA9552_LS0 | PCA9552_AUTOINC;
pca9552_init(i2cdev);
i2c_send(i2c, PCA9552_TEST_ADDR, &reg, 1);
/* PCA9552_LS0 */
@ -52,16 +61,14 @@ static void send_and_receive(void)
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0x0);
/* Switch on LED 0 */
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0, 0x54);
pca9552_init(i2cdev);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS0);
g_assert_cmphex(value, ==, 0x54);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_INPUT0);
g_assert_cmphex(value, ==, 0x01);
/* Switch on LED 12 */
i2c_set8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3, 0x54);
value = i2c_get8(i2c, PCA9552_TEST_ADDR, PCA9552_LS3);
g_assert_cmphex(value, ==, 0x54);