Fixed a NPE in AssumeThatInsteadOfReturn inspection quickfix for empty else branches.

Fixed missing description for AssumeThatInsteadOfReturn inspection.
Added new AssertThatCollectionOrMapExpression inspection that tries to pull out methods such as isEmpty() or contains() out of an actual assertThat() expression. Added more method calls that are considered extension points.

README.md

@@ -169,6 +169,31 @@ You can toggle the various inspections in the Settings/Editor/Inspections in the
   ```
   Analogously with ```isFalse()```.
 
+- AssertThatCollectionOrMapExpression
+
+  Moves collection and map operations inside assertThat() out.
+
+  ```
+  from: assertThat(collection.isEmpty()).isTrue();
+    to: assertThat(collection).isEmpty();
+
+  from: assertThat(collection.contains("foobar")).isTrue();
+    to: assertThat(collection).contains("foobar");
+    
+  from: assertThat(collection.containsAll(otherCollection)).isTrue();
+    to: assertThat(collection).containsAll(otherCollection);
+
+  from: assertThat(map.isEmpty()).isTrue();
+    to: assertThat(map).isEmpty();
+
+  from: assertThat(map.containsKey(key)).isTrue();
+    to: assertThat(map).containsKey(key);
+    
+  from: assertThat(map.containsValue(value)).isTrue();
+    to: assertThat(map).containsValue(value);
+  ```
+  Analogously with ```isFalse()``` (except for containsAll()).
+
 - AssertThatEnumerableIsEmpty
 
   Uses ```isEmpty()``` for ```hasSize(0)``` iterable assertions instead.
@@ -428,10 +453,14 @@ Feel free to use the code (in package de.platon42.intellij.jupiter) for your pro
     to: assertThat(object).extracting(type::getPropOne, it -> it.propNoGetter, it -> it.getPropTwo().getInnerProp())...
   ```
 
-- Kotlin support (right now, however, with less than 100 downloads after a month, this is unlikely to happen)
-
 ## Changelog
 
+#### V1.0 (06-May-19)
+- First release to be considered stable enough for production use.
+- Fixed a NPE in AssumeThatInsteadOfReturn inspection quickfix for empty else branches.
+- Fixed missing description for AssumeThatInsteadOfReturn inspection.
+- Added new AssertThatCollectionOrMapExpression inspection that tries to pull out methods such as ```isEmpty()``` or ```contains()``` out of an actual assertThat() expression.
+
 #### V0.8 (05-May-19)
 - Fixed missing description for JoinAssertThatStatements and detection of equivalent expressions (sorry, released it too hastily).
 - Fixed ```isEmpty()``` for enumerables and strings and ```isNull()``` for object conversions to be applied only if it is the terminal method call as ```isEmpty()``` and ```isNull()``` return void.

build.gradle

@@ -7,7 +7,7 @@ plugins {
 }
 
 group 'de.platon42'
-version '0.8'
+version '1.0'
 
 repositories {
     mavenCentral()
@@ -42,6 +42,13 @@ intellij {
 
 patchPluginXml {
     changeNotes """
+  <h4>V1.0 (06-May-19)</h4>
+    <ul>
+      <li>First release to be considered stable enough for production use.
+      <li>Fixed a NPE in AssumeThatInsteadOfReturn inspection quickfix for empty else branches.
+      <li>Fixed missing description for AssumeThatInsteadOfReturn inspection.
+      <li>Added new AssertThatCollectionOrMapExpression inspection that tries to pull out methods such as isEmpty() or contains() out of an actual assertThat() expression.
+    </ul>
   <h4>V0.8 (05-May-19)</h4>
     <ul>
       <li>Fixed missing description for JoinAssertThatStatements and detection of equivalent expressions (sorry, released it too hastily).
@@ -53,14 +60,6 @@ patchPluginXml {
       <li>Reworded many inspection messages for better understanding.
       <li>Added a first version of a new inspection that tries to detect bogus uses of return statements in test methods and replaces them by assumeThat() calls.
     </ul>
-  <h4>V0.7 (28-Apr-19)</h4>
-    <ul>
-      <li>Another fix for AssertThatGuavaOptional inspection regarding using the same family name for slightly different quick fix executions
-          (really, Jetbrains, this sucks for no reason).
-      <li>Extended AssertThatSize inspection to transform hasSize() into hasSameSizeAs(), if possible.
-      <li>Implemented first version of JoinAssertThatStatements inspection that will try to merge assertThat() statements with the same
-          actual object together, preserving comments.
-    </ul>
   <p>Full changelog available at <a href="https://github.com/chrisly42/cajon-plugin#changelog">Github project site</a>.</p>
 """
 }

src/main/java/de/platon42/intellij/plugins/cajon/AssertJClassNames.kt

@@ -14,6 +14,8 @@ class AssertJClassNames {
         const val DESCRIPTABLE_INTERFACE = "org.assertj.core.api.Descriptable"
         @NonNls
         const val EXTENSION_POINTS_INTERFACE = "org.assertj.core.api.ExtensionPoints"
+        @NonNls
+        const val OBJECT_ENUMERABLE_ASSERT_INTERFACE = "org.assertj.core.api.ObjectEnumerableAssert"
 
         @NonNls
         const val ASSERT_INTERFACE = "org.assertj.core.api.Assert"

src/main/java/de/platon42/intellij/plugins/cajon/CommonMatchers.kt

@@ -23,7 +23,18 @@ val DESCRIBED_AS = CallMatcher.instanceCall(AssertJClassNames.DESCRIPTABLE_INTER
 val WITH_REPRESENTATION_AND_SUCH = CallMatcher.instanceCall(AssertJClassNames.ASSERT_INTERFACE, "withRepresentation", "withThreadDumpOnError")!!
 val USING_COMPARATOR = CallMatcher.instanceCall(AssertJClassNames.ASSERT_INTERFACE, "usingComparator", "usingDefaultComparator")!!
 val IN_HEXADECIMAL_OR_BINARY = CallMatcher.instanceCall(AssertJClassNames.ABSTRACT_ASSERT_CLASSNAME, MethodNames.IN_HEXADECIMAL, MethodNames.IN_BINARY)!!
-val EXTENSION_POINTS = CallMatcher.instanceCall(AssertJClassNames.EXTENSION_POINTS_INTERFACE, "is", "isNot", "has", "doesNotHave", "satisfies")!!
+val EXTENSION_POINTS = CallMatcher.instanceCall(
+    AssertJClassNames.EXTENSION_POINTS_INTERFACE,
+    "is", "isNot", "has", "doesNotHave",
+    "satisfies"
+)!!
+val MORE_EXTENSION_POINTS = CallMatcher.instanceCall(
+    AssertJClassNames.OBJECT_ENUMERABLE_ASSERT_INTERFACE,
+    "are", "areNot", "have", "doNotHave",
+    "areAtLeast", "areAtLeastOne", "areAtMost", "areExactly",
+    "haveAtLeastOne", "haveAtLeast", "haveAtMost", "haveExactly",
+    "hasOnlyOneElementSatisfying", "anyMatch", "noneMatch", "anySatisfy", "noneSatisfy"
+)!!
 
 val NOT_ACTUAL_ASSERTIONS = CallMatcher.anyOf(
     ALL_ASSERT_THAT_MATCHERS,

src/main/java/de/platon42/intellij/plugins/cajon/Extensions.kt

@@ -133,6 +133,7 @@ fun PsiExpression.getAllTheSameExpectedBooleanConstants(): Boolean? {
         } else {
             val isNotConstant = CallMatcher.anyOf(
                 EXTENSION_POINTS,
+                MORE_EXTENSION_POINTS,
                 AbstractAssertJInspection.IS_EQUAL_TO_BOOLEAN,
                 AbstractAssertJInspection.IS_EQUAL_TO_OBJECT,
                 AbstractAssertJInspection.IS_NOT_EQUAL_TO_BOOLEAN,

src/main/java/de/platon42/intellij/plugins/cajon/MethodNames.kt

@@ -84,6 +84,16 @@ class MethodNames {
         @NonNls
         const val CONTAINS_EXACTLY = "containsExactly"
         @NonNls
+        const val CONTAINS_ALL = "containsAll"
+        @NonNls
+        const val CONTAINS_KEY = "containsKey"
+        @NonNls
+        const val DOES_NOT_CONTAIN_KEY = "doesNotContainKey"
+        @NonNls
+        const val CONTAINS_VALUE = "containsValue"
+        @NonNls
+        const val DOES_NOT_CONTAIN_VALUE = "doesNotContainValue"
+        @NonNls
         const val IS_EQUAL_TO_IC = "isEqualToIgnoringCase"
         @NonNls
         const val IS_NOT_EQUAL_TO_IC = "isNotEqualToIgnoringCase"

src/main/java/de/platon42/intellij/plugins/cajon/inspections/AssertThatCollectionOrMapExpressionInspection.kt

@@ -0,0 +1,71 @@
+package de.platon42.intellij.plugins.cajon.inspections
+
+import com.intellij.codeInspection.ProblemsHolder
+import com.intellij.psi.*
+import com.siyeh.ig.callMatcher.CallMatcher
+import de.platon42.intellij.plugins.cajon.*
+import de.platon42.intellij.plugins.cajon.quickfixes.MoveOutMethodCallExpressionQuickFix
+
+class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection() {
+
+    companion object {
+        private const val DISPLAY_NAME = "Asserting a collection or map specific expression"
+
+        private val MAPPINGS = listOf(
+            Mapping(
+                CallMatcher.anyOf(
+                    CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, "isEmpty").parameterCount(0),
+                    CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "isEmpty").parameterCount(0)
+                ),
+                MethodNames.IS_EMPTY, MethodNames.IS_NOT_EMPTY
+            ),
+            Mapping(
+                CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, "contains").parameterCount(1),
+                MethodNames.CONTAINS, MethodNames.DOES_NOT_CONTAIN
+            ),
+            Mapping(
+                CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, "containsAll").parameterCount(1),
+                MethodNames.CONTAINS_ALL, null
+            ),
+            Mapping(
+                CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "containsKey").parameterCount(1),
+                MethodNames.CONTAINS_KEY, MethodNames.DOES_NOT_CONTAIN_KEY
+            ),
+            Mapping(
+                CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "containsValue").parameterCount(1),
+                MethodNames.CONTAINS_VALUE, MethodNames.DOES_NOT_CONTAIN_VALUE
+            )
+        )
+    }
+
+    override fun getDisplayName() = DISPLAY_NAME
+
+    override fun buildVisitor(holder: ProblemsHolder, isOnTheFly: Boolean): PsiElementVisitor {
+        return object : JavaElementVisitor() {
+            override fun visitExpressionStatement(statement: PsiExpressionStatement) {
+                super.visitExpressionStatement(statement)
+                if (!statement.hasAssertThat()) {
+                    return
+                }
+                val staticMethodCall = statement.findStaticMethodCall() ?: return
+                if (!ASSERT_THAT_BOOLEAN.test(staticMethodCall)) {
+                    return
+                }
+                val assertThatArgument = staticMethodCall.firstArg as? PsiMethodCallExpression ?: return
+                val mapping = MAPPINGS.firstOrNull { it.callMatcher.test(assertThatArgument) } ?: return
+
+                val expectedCallExpression = statement.findOutmostMethodCall() ?: return
+                val expectedResult = expectedCallExpression.getAllTheSameExpectedBooleanConstants() ?: return
+
+                val replacementMethod = if (expectedResult) mapping.replacementForTrue else mapping.replacementForFalse ?: return
+                registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, replacementMethod, ::MoveOutMethodCallExpressionQuickFix)
+            }
+        }
+    }
+
+    private class Mapping(
+        val callMatcher: CallMatcher,
+        val replacementForTrue: String,
+        val replacementForFalse: String?
+    )
+}

src/main/java/de/platon42/intellij/plugins/cajon/inspections/AssertThatStringExpressionInspection.kt

@@ -13,30 +13,30 @@ class AssertThatStringExpressionInspection : AbstractAssertJInspection() {
 
         private val MAPPINGS = listOf(
             Mapping(
-                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "isEmpty").parameterCount(0)!!,
+                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "isEmpty").parameterCount(0),
                 MethodNames.IS_EMPTY, MethodNames.IS_NOT_EMPTY
             ),
             Mapping(
                 CallMatcher.anyOf(
-                    CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "equals").parameterCount(1)!!,
-                    CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "contentEquals").parameterCount(1)!!
+                    CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "equals").parameterCount(1),
+                    CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "contentEquals").parameterCount(1)
                 ),
                 MethodNames.IS_EQUAL_TO, MethodNames.IS_NOT_EQUAL_TO
             ),
             Mapping(
-                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "equalsIgnoreCase").parameterTypes(CommonClassNames.JAVA_LANG_STRING)!!,
+                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "equalsIgnoreCase").parameterTypes(CommonClassNames.JAVA_LANG_STRING),
                 MethodNames.IS_EQUAL_TO_IC, MethodNames.IS_NOT_EQUAL_TO_IC
             ),
             Mapping(
-                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "contains").parameterCount(1)!!,
+                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "contains").parameterCount(1),
                 MethodNames.CONTAINS, MethodNames.DOES_NOT_CONTAIN
             ),
             Mapping(
-                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "startsWith").parameterTypes(CommonClassNames.JAVA_LANG_STRING)!!,
+                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "startsWith").parameterTypes(CommonClassNames.JAVA_LANG_STRING),
                 MethodNames.STARTS_WITH, MethodNames.DOES_NOT_START_WITH
             ),
             Mapping(
-                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "endsWith").parameterTypes(CommonClassNames.JAVA_LANG_STRING)!!,
+                CallMatcher.instanceCall(CommonClassNames.JAVA_LANG_STRING, "endsWith").parameterTypes(CommonClassNames.JAVA_LANG_STRING),
                 MethodNames.ENDS_WITH, MethodNames.DOES_NOT_END_WITH
             )
         )

src/main/java/de/platon42/intellij/plugins/cajon/inspections/AssumeThatInsteadOfReturnInspection.kt

@@ -15,7 +15,7 @@ class AssumeThatInsteadOfReturnInspection : AbstractAssertJInspection() {
         private const val MAX_RECURSION_DEPTH = 5
         private const val MAX_STATEMENTS_COUNT = 50
 
-        private val TEST_ANNOTATIONS = listOf(
+        private val TEST_ANNOTATIONS = setOf(
             "org.junit.Test",
             "org.junit.jupiter.api.Test",
             "org.junit.jupiter.api.TestTemplate",
@@ -52,7 +52,9 @@ class AssumeThatInsteadOfReturnInspection : AbstractAssertJInspection() {
         return object : JavaElementVisitor() {
             override fun visitMethod(method: PsiMethod) {
                 super.visitMethod(method)
-                if (TEST_ANNOTATIONS.none(method::hasAnnotation)) {
+                // Note: replace with if(TEST_ANNOTATIONS.none(method::hasAnnotation)) for IDEA >= 2018.2
+                val annotations = method.annotations.mapNotNull { it.qualifiedName }
+                if (annotations.none(TEST_ANNOTATIONS::contains)) {
                     return
                 }
                 val containingClass = method.containingClass ?: return

src/main/java/de/platon42/intellij/plugins/cajon/inspections/JoinAssertThatStatementsInspection.kt

@@ -4,7 +4,7 @@ import com.intellij.codeInspection.ProblemHighlightType
 import com.intellij.codeInspection.ProblemsHolder
 import com.intellij.psi.*
 import com.intellij.psi.util.PsiTreeUtil
-import com.siyeh.ig.psiutils.TrackingEquivalenceChecker
+import com.siyeh.ig.psiutils.EquivalenceChecker
 import de.platon42.intellij.plugins.cajon.*
 import de.platon42.intellij.plugins.cajon.quickfixes.JoinStatementsQuickFix
 
@@ -25,7 +25,8 @@ class JoinAssertThatStatementsInspection : AbstractAssertJInspection() {
                 var sameCount = 0
                 var firstStatement: PsiStatement? = null
                 var lastStatement: PsiStatement? = null
-                val equivalenceChecker = TrackingEquivalenceChecker()
+                // Note: replace with TrackingEquivalenceChecker() for IDEA >= 2019.1
+                val equivalenceChecker = EquivalenceChecker.getCanonicalPsiEquivalence()!!
                 for (statement in block.statements) {
                     val assertThatCall = isLegitAssertThatCall(statement)
                     var reset = true
@@ -36,9 +37,10 @@ class JoinAssertThatStatementsInspection : AbstractAssertJInspection() {
                         if (!reset) {
                             val isSame = when (actualExpression) {
                                 is PsiMethodCallExpression -> equivalenceChecker.expressionsAreEquivalent(actualExpression, lastActualExpression)
+                                        // Note: replace with PsiTreeUtil.findChildrenOfAnyType(strict = false) for IDEA >= 2018.1
+                                        && !KNOWN_METHODS_WITH_SIDE_EFFECTS.test(actualExpression)
                                         && PsiTreeUtil.findChildrenOfAnyType(
                                     actualExpression,
-                                    false,
                                     PsiMethodCallExpression::class.java
                                 ).none { KNOWN_METHODS_WITH_SIDE_EFFECTS.test(it) }
                                 else -> equivalenceChecker.expressionsAreEquivalent(actualExpression, lastActualExpression)

src/main/java/de/platon42/intellij/plugins/cajon/quickfixes/JoinStatementsQuickFix.kt

@@ -19,20 +19,20 @@ class JoinStatementsQuickFix : AbstractCommonQuickFix(JOIN_STATEMENTS_MESSAGE) {
         do {
             val commentsToKeep = ArrayList<PsiComment>()
             val stuffToDelete = ArrayList<PsiElement>()
-            var previousStatement = lastStatement.prevSibling ?: throw IllegalStateException("Internal error")
+            var previousStatement = lastStatement.prevSibling!!
             while (previousStatement !is PsiExpressionStatement) {
                 if (previousStatement is PsiComment) {
                     commentsToKeep.add(previousStatement.copy() as PsiComment)
                 }
                 stuffToDelete.add(previousStatement)
-                previousStatement = previousStatement.prevSibling ?: throw IllegalStateException("Internal error")
+                previousStatement = previousStatement.prevSibling!!
             }
             stuffToDelete.forEach { if (it.isValid) it.delete() }
 
             val statementComments = PsiTreeUtil.getChildrenOfAnyType(previousStatement, PsiComment::class.java)
             commentsToKeep.addAll(statementComments)
 
-            val assertThatCallOfCursorStatement = lastStatement.findStaticMethodCall() ?: throw IllegalStateException("Internal error")
+            val assertThatCallOfCursorStatement = lastStatement.findStaticMethodCall()!!
 
             val lastElementBeforeConcat = assertThatCallOfCursorStatement.parent
             commentsToKeep.forEach {

src/main/java/de/platon42/intellij/plugins/cajon/quickfixes/ReplaceIfByAssumeThatQuickFix.kt

@@ -34,11 +34,13 @@ class ReplaceIfByAssumeThatQuickFix(private val removeElse: Boolean) : AbstractC
             val anchorElement = ifStatement.nextSibling
             if (branchToKeep is PsiBlockStatement) {
                 val codeBlock = branchToKeep.codeBlock
-                val hasDeclarations = codeBlock.statements.any { it is PsiDeclarationStatement }
-                if (hasDeclarations) {
-                    parentBlock.addAfter(branchToKeep, anchorElement)
-                } else {
-                    parentBlock.addRangeAfter(codeBlock.firstBodyElement, codeBlock.lastBodyElement, anchorElement)
+                if (codeBlock.statements.isNotEmpty()) {
+                    val hasDeclarations = codeBlock.statements.any { it is PsiDeclarationStatement }
+                    if (hasDeclarations) {
+                        parentBlock.addAfter(branchToKeep, anchorElement)
+                    } else {
+                        parentBlock.addRangeAfter(codeBlock.firstBodyElement, codeBlock.lastBodyElement, anchorElement)
+                    }
                 }
             } else {
                 parentBlock.addAfter(branchToKeep, anchorElement)

src/main/resources/META-INF/plugin.xml

@@ -42,10 +42,12 @@
                          implementationClass="de.platon42.intellij.plugins.cajon.inspections.AssertThatBinaryExpressionInspection"/>
         <localInspection groupPath="Java" shortName="AssertThatStringExpression" enabledByDefault="true" level="WARNING"
                          implementationClass="de.platon42.intellij.plugins.cajon.inspections.AssertThatStringExpressionInspection"/>
+        <localInspection groupPath="Java" shortName="AssertThatCollectionOrMapExpression" enabledByDefault="true" level="WARNING"
+                         implementationClass="de.platon42.intellij.plugins.cajon.inspections.AssertThatCollectionOrMapExpressionInspection"/>
 
         <localInspection groupPath="Java" shortName="JoinAssertThatStatements" enabledByDefault="true" level="WARNING"
                          implementationClass="de.platon42.intellij.plugins.cajon.inspections.JoinAssertThatStatementsInspection"/>
-        <localInspection groupPath="Java" shortName="AssumeThatInsteadOfReturnInspection" enabledByDefault="true" level="WARNING"
+        <localInspection groupPath="Java" shortName="AssumeThatInsteadOfReturn" enabledByDefault="true" level="WARNING"
                          implementationClass="de.platon42.intellij.plugins.cajon.inspections.AssumeThatInsteadOfReturnInspection"/>
 
         <localInspection groupPath="Java" shortName="AssertThatJava8Optional" enabledByDefault="true" level="WARNING"

src/main/resources/inspectionDescriptions/AssertThatCollectionOrMapExpression.html

@@ -0,0 +1,8 @@
+<html>
+<body>
+Turns assertThat(collectionOrMap.someMethod(arg)).isTrue/isFalse() into assertThat(collectionOrMap).someMethod(arg).
+<!-- tooltip end -->
+<br>someMethod() can be isEmpty(), contains(), and containsAll() for collections and
+isEmpty(), containsKey(), and containsValue() for maps.
+</body>
+</html>

src/main/resources/inspectionDescriptions/AssertThatStringExpression.html

@@ -2,6 +2,6 @@
 <body>
 Turns assertThat(string.someMethod(arg)).isTrue/isFalse() into assertThat(string).someMethod(arg).
 <!-- tooltip end -->
-<br>someMethod() can be equals(), equalsIgnoreCase(), contentEquals(), contains(), startsWith(), and endsWith().
+<br>someMethod() can be isEmpty(), equals(), equalsIgnoreCase(), contentEquals(), contains(), startsWith(), and endsWith().
 </body>
 </html>

src/test/java/de/platon42/intellij/plugins/cajon/inspections/AssertThatCollectionOrMapExpressionInspectionTest.kt

@@ -0,0 +1,29 @@
+package de.platon42.intellij.plugins.cajon.inspections
+
+import com.intellij.testFramework.fixtures.JavaCodeInsightTestFixture
+import de.platon42.intellij.jupiter.MyFixture
+import de.platon42.intellij.jupiter.TestDataSubPath
+import de.platon42.intellij.plugins.cajon.AbstractCajonTest
+import org.junit.jupiter.api.Test
+
+internal class AssertThatCollectionOrMapExpressionInspectionTest : AbstractCajonTest() {
+
+    @Test
+    @TestDataSubPath("inspections/CollectionMapExpression")
+    internal fun assertThat_with_certain_Collection_and_Map_methods(@MyFixture myFixture: JavaCodeInsightTestFixture) {
+        runTest {
+            myFixture.enableInspections(AssertThatCollectionOrMapExpressionInspection::class.java)
+            myFixture.configureByFile("CollectionMapExpressionBefore.java")
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove isEmpty() of actual expression and use assertThat().isEmpty() instead"), 4)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove contains() of actual expression and use assertThat().contains() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove containsAll() of actual expression and use assertThat().containsAll() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove containsKey() of actual expression and use assertThat().containsKey() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove containsValue() of actual expression and use assertThat().containsValue() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove isEmpty() of actual expression and use assertThat().isNotEmpty() instead"), 5)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove contains() of actual expression and use assertThat().doesNotContain() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove containsKey() of actual expression and use assertThat().doesNotContainKey() instead"), 2)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Remove containsValue() of actual expression and use assertThat().doesNotContainValue() instead"), 2)
+            myFixture.checkResultByFile("CollectionMapExpressionAfter.java")
+        }
+    }
+}

src/test/java/de/platon42/intellij/plugins/cajon/inspections/AssumeThatInsteadOfReturnInspectionTest.kt

@@ -17,7 +17,7 @@ internal class AssumeThatInsteadOfReturnInspectionTest : AbstractCajonTest() {
         runTest {
             myFixture.enableInspections(AssumeThatInsteadOfReturnInspection::class.java)
             myFixture.configureByFile("AssumeThatBefore.java")
-            executeQuickFixes(myFixture, Regex.fromLiteral("Replace if statement by assumeTrue()"), 4)
+            executeQuickFixes(myFixture, Regex.fromLiteral("Replace if statement by assumeTrue()"), 5)
             myFixture.checkResultByFile("AssumeThatAfter.java")
         }
     }

src/test/resources/inspections/AssumeThat/AssumeThatAfter.java

@@ -38,6 +38,13 @@ public class AssumeThat {
         assertThat(foobar).isNotEmpty();
     }
 
+    @org.junit.jupiter.api.Test
+    public void junit5_return_with_empty_else_block() {
+        String foobar = System.getProperty("car_manufacturer");
+        assumeThat(foobar.equals("Volkswagen")).isFalse();
+        assertThat(foobar).isNotEmpty();
+    }
+
     @org.junit.jupiter.api.TestTemplate
     public void junit5_return_inside_recursion_with_comments() {
         String foobar = System.getProperty("car_manufacturer");

src/test/resources/inspections/AssumeThat/AssumeThatBefore.java

@@ -39,6 +39,13 @@ public class AssumeThat {
         assertThat(foobar).isNotEmpty();
     }
 
+    @org.junit.jupiter.api.Test
+    public void junit5_return_with_empty_else_block() {
+        String foobar = System.getProperty("car_manufacturer");
+        if (foobar.equals("Volkswagen")) return; else {}
+        assertThat(foobar).isNotEmpty();
+    }
+
     @org.junit.jupiter.api.TestTemplate
     public void junit5_return_inside_recursion_with_comments() {
         String foobar = System.getProperty("car_manufacturer");

src/test/resources/inspections/CollectionMapExpression/CollectionMapExpressionAfter.java

@@ -0,0 +1,44 @@
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.*;
+
+public class CollectionMapExpression {
+
+    private void collectionMapExpression() {
+        List<String> stringList = new ArrayList<>();
+        List<String> anotherList = new ArrayList<>();
+        Map<String, Integer> keyValueMap = new HashMap<>();
+
+        assertThat(stringList).as("foo").isEmpty();
+        assertThat(stringList).isEmpty();
+        assertThat(stringList).contains("foo");
+        assertThat(stringList).contains("foo");
+        assertThat(stringList).containsAll(anotherList);
+        assertThat(stringList).containsAll(anotherList);
+
+        assertThat(stringList).as("foo").isNotEmpty();
+        assertThat(stringList).isNotEmpty();
+        assertThat(stringList).doesNotContain("foo");
+        assertThat(stringList).doesNotContain("foo");
+        assertThat(stringList.containsAll(anotherList)).isEqualTo(false);
+        assertThat(stringList.containsAll(anotherList)).isFalse();
+
+        assertThat(keyValueMap).as("foo").isEmpty();
+        assertThat(keyValueMap).isEmpty();
+        assertThat(keyValueMap).containsKey("foo");
+        assertThat(keyValueMap).containsKey("foo");
+        assertThat(keyValueMap).containsValue(2);
+        assertThat(keyValueMap).containsValue(2);
+
+        assertThat(keyValueMap).as("foo").isNotEmpty();
+        assertThat(keyValueMap).isNotEmpty();
+        assertThat(keyValueMap).doesNotContainKey("foo");
+        assertThat(keyValueMap).doesNotContainKey("foo");
+        assertThat(keyValueMap).doesNotContainValue(2);
+        assertThat(keyValueMap).doesNotContainValue(2);
+
+        assertThat(stringList).as("foo").isNotEmpty().as("bar").isNotEmpty();
+        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false).as("bar").isTrue();
+        assertThat(stringList.isEmpty()).as("foo").satisfies(it -> it.booleanValue()).as("bar").isFalse();
+    }
+}

src/test/resources/inspections/CollectionMapExpression/CollectionMapExpressionBefore.java

@@ -0,0 +1,44 @@
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.*;
+
+public class CollectionMapExpression {
+
+    private void collectionMapExpression() {
+        List<String> stringList = new ArrayList<>();
+        List<String> anotherList = new ArrayList<>();
+        Map<String, Integer> keyValueMap = new HashMap<>();
+
+        assertThat(stringList.isEmpty()).as("foo").isEqualTo(true);
+        assertThat(stringList.isEmpty()).isTrue();
+        assertThat(stringList.contains("foo")).isEqualTo(true);
+        assertThat(stringList.contains("foo")).isTrue();
+        assertThat(stringList.containsAll(anotherList)).isEqualTo(true);
+        assertThat(stringList.containsAll(anotherList)).isTrue();
+
+        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false);
+        assertThat(stringList.isEmpty()).isFalse();
+        assertThat(stringList.contains("foo")).isEqualTo(false);
+        assertThat(stringList.contains("foo")).isFalse();
+        assertThat(stringList.containsAll(anotherList)).isEqualTo(false);
+        assertThat(stringList.containsAll(anotherList)).isFalse();
+
+        assertThat(keyValueMap.isEmpty()).as("foo").isEqualTo(true);
+        assertThat(keyValueMap.isEmpty()).isTrue();
+        assertThat(keyValueMap.containsKey("foo")).isEqualTo(true);
+        assertThat(keyValueMap.containsKey("foo")).isTrue();
+        assertThat(keyValueMap.containsValue(2)).isEqualTo(true);
+        assertThat(keyValueMap.containsValue(2)).isTrue();
+
+        assertThat(keyValueMap.isEmpty()).as("foo").isEqualTo(false);
+        assertThat(keyValueMap.isEmpty()).isFalse();
+        assertThat(keyValueMap.containsKey("foo")).isEqualTo(false);
+        assertThat(keyValueMap.containsKey("foo")).isFalse();
+        assertThat(keyValueMap.containsValue(2)).isEqualTo(false);
+        assertThat(keyValueMap.containsValue(2)).isFalse();
+
+        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false).as("bar").isFalse();
+        assertThat(stringList.isEmpty()).as("foo").isEqualTo(false).as("bar").isTrue();
+        assertThat(stringList.isEmpty()).as("foo").satisfies(it -> it.booleanValue()).as("bar").isFalse();
+    }
+}