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Verify filtering list of contexts where some part is null or non-existing #700

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merged 1 commit into from
Aug 18, 2023
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Verify filtering list of contexts where some part is null or non-existing #700

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64 changes: 63 additions & 1 deletion src/test/scala/org/camunda/feel/impl/interpreter/InterpreterContextExpressionTest.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ class InterpreterContextExpressionTest

val items = list.asInstanceOf[ValList].items
items should have size 1
val context = items(0)
val context = items.head

context
.asInstanceOf[ValContext]
Expand All @@ -84,6 +84,68 @@ class InterpreterContextExpressionTest
.getVariables should be(Map("a" -> ValNumber(3), "b" -> ValNumber(4)))
}

it should "be filtered via comparison with missing entry" in {

val list = eval("[{x: 1, y: 2}, {x: 3}][y > 1]")
list shouldBe a[ValList]

val items = list.asInstanceOf[ValList].items
items should have size 1
val context = items.head

context
.asInstanceOf[ValContext]
.context
.variableProvider
.getVariables should be(Map("x" -> ValNumber(1), "y" -> ValNumber(2)))
}

it should "be filtered via comparison with null value" in {
val list = eval("[{x: 1}, {x: null}][x > 0]")
list shouldBe a[ValList]

val items = list.asInstanceOf[ValList].items
items should have size 1
val context = items.head

context
.asInstanceOf[ValContext]
.context
.variableProvider
.getVariables should be(Map("x" -> ValNumber(1)))
}

it should "be filtered via matching null comparison" in {
val list = eval("[{x: 1}, {x: null}][x = null]")
list shouldBe a[ValList]

val items = list.asInstanceOf[ValList].items
items should have size 1
val context = items.head

context
.asInstanceOf[ValContext]
.context
.variableProvider
.getVariables should be(Map("x" -> ValNull))
}

// note that a missing entry is equivalent to that entry containing null
it should "be filtered via missing entry null comparison" in {
val list = eval("[{x: 1}, {y: 1}][x = null]")
list shouldBe a[ValList]

val items = list.asInstanceOf[ValList].items
items should have size 1
val context = items.head

context
.asInstanceOf[ValContext]
.context
.variableProvider
.getVariables should be(Map("y" -> ValNumber(1)))
}

it should "be filtered by name 'item'" in {

eval("[ {item:1}, {item:2}, {item:3} ][item >= 2]") match {
Expand Down