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73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
package gpio
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import (
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"gobot.io/x/gobot/v2"
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"gobot.io/x/gobot/v2/drivers/aio"
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)
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var _ gobot.Driver = (*MAX7219Driver)(nil)
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func initTestMAX7219Driver() *MAX7219Driver {
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d, _ := initTestMAX7219DriverWithStubbedAdaptor()
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return d
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}
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func initTestMAX7219DriverWithStubbedAdaptor() (*MAX7219Driver, *gpioTestAdaptor) {
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a := newGpioTestAdaptor()
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return NewMAX7219Driver(a, "1", "2", "3", 1), a
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}
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func TestNewMAX7219Driver(t *testing.T) {
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// arrange
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a := newGpioTestAdaptor()
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// act
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d := NewMAX7219Driver(a, "1", "2", "3", 4)
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// assert
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assert.IsType(t, &MAX7219Driver{}, d)
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// assert: gpio.driver attributes
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require.NotNil(t, d.driver)
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assert.True(t, strings.HasPrefix(d.driverCfg.name, "MAX7219"))
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assert.Equal(t, a, d.connection)
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assert.NotNil(t, d.afterStart)
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assert.NotNil(t, d.beforeHalt)
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assert.NotNil(t, d.Commander)
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assert.NotNil(t, d.mutex)
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// assert: driver specific attributes
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assert.NotNil(t, d.pinClock)
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assert.NotNil(t, d.pinData)
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assert.NotNil(t, d.pinCS)
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assert.Equal(t, uint(4), d.count)
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}
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func TestNewMAX7219Driver_options(t *testing.T) {
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// This is a general test, that options are applied in constructor by using the common WithName() option, least one
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// option of this driver and one of another driver (which should lead to panic). Further tests for options can also
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// be done by call of "WithOption(val).apply(cfg)".
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// arrange
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const (
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myName = "light chain 5"
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)
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panicFunc := func() {
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NewMAX7219Driver(newGpioTestAdaptor(), "1", "2", "3", 4, WithName("crazy"),
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aio.WithActuatorScaler(func(float64) int { return 0 }))
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}
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// act
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d := NewMAX7219Driver(newGpioTestAdaptor(), "1", "2", "3", 4, WithName(myName))
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// assert
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assert.Equal(t, myName, d.Name())
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assert.PanicsWithValue(t, "'scaler option for analog actuators' can not be applied on 'crazy'", panicFunc)
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}
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func TestMAX7219Start(t *testing.T) {
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// arrange
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d := initTestMAX7219Driver()
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// act & assert: tests also initialize()
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require.NoError(t, d.Start())
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}
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