Alexey Tsvetkov
39 lines
905 B
Kotlin
39 lines
905 B
Kotlin
package foo
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class State(var realValue: Int)
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fun format(event: String, property: String, value: Int): String
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= "${event}: ${property} = ${value}; "
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object LoggerDelegate {
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var log = ""
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fun get(state: State, desc: PropertyMetadataImpl): Int {
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log += format("get", desc.name, state.realValue)
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return state.realValue
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}
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fun set(state: State, desc: PropertyMetadataImpl, value: Int) {
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log += format("set", desc.name, value)
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state.realValue = value
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}
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}
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var State.value by LoggerDelegate
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fun box(): String {
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val state = State(1)
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var expectedLog = ""
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assertEquals(1, state.value)
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expectedLog += format("get", "value", 1)
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state.value = 3
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expectedLog += format("set", "value", 3)
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assertEquals(3, state.value)
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expectedLog += format("get", "value", 3)
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assertEquals(expectedLog, LoggerDelegate.log)
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return "OK"
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} |