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ObjectNodeMergeTest.kt
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ObjectNodeMergeTest.kt
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package com.github.pgutkowski.kgraphql.merge
import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.node.JsonNodeFactory
import com.github.pgutkowski.kgraphql.expect
import com.github.pgutkowski.kgraphql.schema.execution.merge
import org.hamcrest.CoreMatchers.equalTo
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Test
class ObjectNodeMergeTest {
private val jsonNodeFactory = JsonNodeFactory.instance
@Test
fun `merge should add property`() {
val existing = jsonNodeFactory.objectNode().put("param1", "value1")
val update = jsonNodeFactory.objectNode().put("param2", "value2")
existing.merge(update)
val expected: JsonNode? = jsonNodeFactory.textNode("value2")
assertThat(existing.get("param2"), equalTo(expected))
}
@Test
fun `merge should add nested property`() {
val existing = jsonNodeFactory.objectNode().put("param1", "value1")
val update = jsonNodeFactory.objectNode()
update.putObject("sub").put("param2", "value2")
existing.merge(update)
val expected: JsonNode? = jsonNodeFactory.objectNode().put("param2", "value2")
assertThat(existing.get("sub"), equalTo(expected))
}
@Test
fun `merge should not change simple node`() {
val existing = jsonNodeFactory.objectNode().put("param", "value1")
val update = jsonNodeFactory.objectNode().put("param", "value2")
expect<IllegalStateException>("different simple nodes") { existing.merge(update) }
val expected: JsonNode? = jsonNodeFactory.textNode("value1")
assertThat(existing.get("param"), equalTo(expected))
}
@Test
fun `merge should not merge simple node with object node`() {
val existing = jsonNodeFactory.objectNode().put("param", "value1")
val update = jsonNodeFactory.objectNode()
update.putObject("param")
expect<IllegalStateException>("merge object with simple node") { existing.merge(update) }
val expected: JsonNode? = jsonNodeFactory.textNode("value1")
assertThat(existing.get("param"), equalTo(expected))
}
@Test
fun `merge should not merge object node with simple node`() {
val existing = jsonNodeFactory.objectNode()
val existingObj: JsonNode? = existing.putObject("param").put("other", "value1")
val update = jsonNodeFactory.objectNode().put("param", "value2")
expect<IllegalStateException>("merge simple node with object node") { existing.merge(update) }
assertThat(existing.get("param"), equalTo(existingObj))
}
}