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path: root/test/src/model/FunctionTest.kt
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package org.jetbrains.dokka.tests

import org.junit.Test
import kotlin.test.*
import org.jetbrains.dokka.*

public class FunctionTest {
    Test fun function() {
        verifyModel("test/data/functions/function.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals("fn", name)
                assertEquals(DocumentationNode.Kind.Function, kind)
                assertEquals("Function fn", content.summary.toTestString())
                assertEquals("Unit", detail(DocumentationNode.Kind.Type).name)
                assertTrue(members.none())
                assertTrue(links.none())
            }
        }
    }

    Test fun functionWithReceiver() {
        verifyModel("test/data/functions/functionWithReceiver.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals("String", name)
                assertEquals(DocumentationNode.Kind.ExternalClass, kind)
                assertEquals(2, members.count())
                with(members[0]) {
                    assertEquals("fn", name)
                    assertEquals(DocumentationNode.Kind.Function, kind)
                    assertEquals("Function with receiver", content.summary.toTestString())
                    assertEquals(4, details.count())
                    assertEquals("internal", details.elementAt(0).name)
                    assertEquals("final", details.elementAt(1).name)
                    with(details.elementAt(2)) {
                        assertEquals("<this>", name)
                        assertEquals(DocumentationNode.Kind.Receiver, kind)
                        assertEquals(Content.Empty, content)
                        assertEquals("String", details.single().name)
                        assertTrue(members.none())
                        assertTrue(links.none())
                    }
                    assertEquals("Unit", details.elementAt(3).name)
                    assertTrue(members.none())
                    assertTrue(links.none())
                }
                with(members[1]) {
                    assertEquals("fn", name)
                    assertEquals(DocumentationNode.Kind.Function, kind)
                }
            }
        }
    }

    Test fun genericFunction() {
        verifyModel("test/data/functions/genericFunction.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals("generic", name)
                assertEquals(DocumentationNode.Kind.Function, kind)
                assertEquals("generic function", content.summary.toTestString())

                assertEquals(4, details.count())
                assertEquals("private", details.elementAt(0).name)
                assertEquals("final", details.elementAt(1).name)
                with(details.elementAt(2)) {
                    assertEquals("T", name)
                    assertEquals(DocumentationNode.Kind.TypeParameter, kind)
                    assertEquals(Content.Empty, content)
                    assertTrue(details.none())
                    assertTrue(members.none())
                    assertTrue(links.none())
                }
                assertEquals("Unit", details.elementAt(3).name)

                assertTrue(members.none())
                assertTrue(links.none())
            }
        }
    }
    Test fun genericFunctionWithConstraints() {
        verifyModel("test/data/functions/genericFunctionWithConstraints.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals("generic", name)
                assertEquals(DocumentationNode.Kind.Function, kind)
                assertEquals("generic function", content.summary.toTestString())

                assertEquals(5, details.count())
                assertEquals("public", details.elementAt(0).name)
                assertEquals("final", details.elementAt(1).name)
                with(details.elementAt(2)) {
                    assertEquals("T", name)
                    assertEquals(DocumentationNode.Kind.TypeParameter, kind)
                    assertEquals(Content.Empty, content)
                    with(details.single()) {
                        assertEquals("R", name)
                        assertEquals(DocumentationNode.Kind.UpperBound, kind)
                        assertEquals(Content.Empty, content)
                        assertTrue(details.none())
                        assertTrue(members.none())
                        assertTrue(links.none())
                    }
                    assertTrue(members.none())
                    assertTrue(links.none())
                }
                with(details.elementAt(3)) {
                    assertEquals("R", name)
                    assertEquals(DocumentationNode.Kind.TypeParameter, kind)
                    assertEquals(Content.Empty, content)
                    assertTrue(members.none())
                    assertTrue(links.none())
                }
                assertEquals("Unit", details.elementAt(4).name)

                assertTrue(members.none())
                assertTrue(links.none())
            }
        }
    }

    Test fun functionWithParams() {
        verifyModel("test/data/functions/functionWithParams.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals("function", name)
                assertEquals(DocumentationNode.Kind.Function, kind)
                assertEquals("Multiline", content.summary.toTestString())
                assertEquals("""Function
Documentation""", content.description.toTestString())

                assertEquals(4, details.count())
                assertEquals("internal", details.elementAt(0).name)
                assertEquals("final", details.elementAt(1).name)
                with(details.elementAt(2)) {
                    assertEquals("x", name)
                    assertEquals(DocumentationNode.Kind.Parameter, kind)
                    assertEquals("parameter", content.summary.toTestString())
                    assertEquals("Int", details.single().name)
                    assertTrue(members.none())
                    assertTrue(links.none())
                }
                assertEquals("Unit", details.elementAt(3).name)
                assertTrue(members.none())
                assertTrue(links.none())
            }
        }
    }

    Test fun annotatedFunction() {
        verifyModel("test/data/functions/annotatedFunction.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals(1, annotations.count())
                with(annotations[0]) {
                    assertEquals("inline", name)
                    assertEquals(Content.Empty, content)
                    assertEquals(DocumentationNode.Kind.Annotation, kind)
                }
            }
        }
    }

    Test fun functionWithAnnotatedParam() {
        verifyModel("test/data/functions/functionWithAnnotatedParam.kt") { model ->
            with(model.members.single().members.single()) {
                with(details.elementAt(2)) {
                    assertEquals(1, annotations.count())
                    with(annotations[0]) {
                        assertEquals("noinline", name)
                        assertEquals(Content.Empty, content)
                        assertEquals(DocumentationNode.Kind.Annotation, kind)
                    }
                }
            }
        }
    }

    Test fun annotatedFunctionWithAnnotationParameters() {
        verifyModel("test/data/functions/annotatedFunctionWithAnnotationParameters.kt") { model ->
            with(model.members.single().members.single()) {
                assertEquals(1, annotations.count())
                with(annotations[0]) {
                    assertEquals("inlineOptions", name)
                    assertEquals(Content.Empty, content)
                    assertEquals(DocumentationNode.Kind.Annotation, kind)
                    assertEquals(1, details.count())
                    with(details[0]) {
                        assertEquals(DocumentationNode.Kind.Parameter, kind)
                        assertEquals(1, details.count())
                        with(details[0]) {
                            assertEquals(DocumentationNode.Kind.Value, kind)
                            assertEquals("[InlineOption.LOCAL_CONTINUE_AND_BREAK]", name)
                        }
                    }
                }
            }
        }
    }

    Test fun functionWithDefaultParameter() {
        verifyModel("test/data/functions/functionWithDefaultParameter.kt") { model ->
            with(model.members.single().members.single()) {
                with(details.elementAt(2)) {
                    val value = details(DocumentationNode.Kind.Value)
                    assertEquals(1, value.count())
                    with(value[0]) {
                        assertEquals("\"\"", name)
                    }
                }
            }
        }
    }
}