DiagnosticKindAssert tests

Author: ascopes

java-compiler-testing/src/test/java/io/github/ascopes/jct/tests/unit/assertions/DiagnosticKindAssertTest.java

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+/*
+ * Copyright (C) 2022 - 2023, the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.github.ascopes.jct.tests.unit.assertions;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import io.github.ascopes.jct.assertions.DiagnosticKindAssert;
+import javax.tools.Diagnostic.Kind;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
+import org.junit.jupiter.params.provider.EnumSource.Mode;
+import org.junit.jupiter.params.provider.NullSource;
+
+/**
+ * {@link DiagnosticKindAssert} tests.
+ *
+ * @author Ashley Scopes
+ */
+@DisplayName("DiagnosticKindAssert tests")
+class DiagnosticKindAssertTest {
+
+  @DisplayName("DiagnosticKindAssert#isError tests")
+  @Nested
+  class IsErrorTest {
+
+    @DisplayName(".isError() fails if the kind is not an error")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = "ERROR")
+    @ParameterizedTest(name = "for {0}")
+    void isErrorFailsIfKindIsNotError(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isError)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isError() succeeds if the kind is an error")
+    @Test
+    void isErrorSucceedsIfTheKindIsAnError() {
+      // Given
+      var assertions = new DiagnosticKindAssert(Kind.ERROR);
+
+      // Then
+      assertThat(assertions.isError())
+          .isSameAs(assertions);
+    }
+  }
+
+  @DisplayName("DiagnosticKindAssert#isWarning tests")
+  @Nested
+  class IsWarningTest {
+
+    @DisplayName(".isWarning() fails if the kind is not a warning or mandatory warning")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = {"WARNING", "MANDATORY_WARNING"})
+    @ParameterizedTest(name = "for {0}")
+    void isWarningFailsIfKindIsNotWarning(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isWarning)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isWarning() succeeds if the kind is a warning or mandatory warning")
+    @EnumSource(value = Kind.class, mode = Mode.INCLUDE, names = {"WARNING", "MANDATORY_WARNING"})
+    @ParameterizedTest(name = "for {0}")
+    void isWarningSucceedsIfTheKindIsWarning(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThat(assertions.isWarning())
+          .isSameAs(assertions);
+    }
+  }
+
+  @DisplayName("DiagnosticKindAssert#isCustomWarning tests")
+  @Nested
+  class IsCustomWarningTest {
+
+    @DisplayName(".isCustomWarning() fails if the kind is not WARNING")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = "WARNING")
+    @ParameterizedTest(name = "for {0}")
+    void isCustomWarningFailsIfKindIsNotCustomWarning(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isCustomWarning)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isCustomWarning() succeeds if the kind is WARNING")
+    @Test
+    void isCustomWarningSucceedsIfTheKindIsCustomWarning() {
+      // Given
+      var assertions = new DiagnosticKindAssert(Kind.WARNING);
+
+      // Then
+      assertThat(assertions.isCustomWarning())
+          .isSameAs(assertions);
+    }
+  }
+
+  @DisplayName("DiagnosticKindAssert#isMandatoryWarning tests")
+  @Nested
+  class IsMandatoryWarningTest {
+
+    @DisplayName(".isMandatoryWarning() fails if the kind is not a mandatory warning")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = "MANDATORY_WARNING")
+    @ParameterizedTest(name = "for {0}")
+    void isMandatoryWarningFailsIfKindIsNotMandatoryWarning(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isMandatoryWarning)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isMandatoryWarning() succeeds if the kind is a mandatory warning")
+    @Test
+    void isMandatoryWarningSucceedsIfTheKindIsMandatoryWarning() {
+      // Given
+      var assertions = new DiagnosticKindAssert(Kind.MANDATORY_WARNING);
+
+      // Then
+      assertThat(assertions.isMandatoryWarning())
+          .isSameAs(assertions);
+    }
+  }
+
+  @DisplayName("DiagnosticKindAssert#isNote tests")
+  @Nested
+  class IsNoteTest {
+
+    @DisplayName(".isNote() fails if the kind is not a note")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = "NOTE")
+    @ParameterizedTest(name = "for {0}")
+    void isNoteFailsIfKindIsNotNote(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isNote)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isNote() succeeds if the kind is a note")
+    @Test
+    void isNoteSucceedsIfTheKindIsNote() {
+      // Given
+      var assertions = new DiagnosticKindAssert(Kind.NOTE);
+
+      // Then
+      assertThat(assertions.isNote())
+          .isSameAs(assertions);
+    }
+  }
+
+  @DisplayName("DiagnosticKindAssert#isOther tests")
+  @Nested
+  class IsOtherTest {
+
+    @DisplayName(".isOther() fails if the kind is not OTHER")
+    @NullSource
+    @EnumSource(value = Kind.class, mode = Mode.EXCLUDE, names = "OTHER")
+    @ParameterizedTest(name = "for {0}")
+    void isOtherFailsIfKindIsNotOther(Kind kind) {
+      // Given
+      var assertions = new DiagnosticKindAssert(kind);
+
+      // Then
+      assertThatThrownBy(assertions::isOther)
+          .isInstanceOf(AssertionError.class);
+    }
+
+    @DisplayName(".isOther() succeeds if the kind is OTHER")
+    @Test
+    void isOtherSucceedsIfTheKindIsOther() {
+      // Given
+      var assertions = new DiagnosticKindAssert(Kind.OTHER);
+
+      // Then
+      assertThat(assertions.isOther())
+          .isSameAs(assertions);
+    }
+  }
+}