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Fix for AssertThatCollectionOrMap inspection sometimes causing an index out of bounds exception.

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Added an settings option for AssertThatCollectionOrMap inspection respecting the degenerated case of maps with null values.
Upgrade to JUnit Jupiter 5.5.2.
This commit is contained in:
chrisly42
2019-09-09 23:13:45 +02:00
parent 341d1877df
commit 8d678411b5
13 changed files with 258 additions and 34 deletions
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src/main/java/de/platon42/intellij/plugins/cajon/inspections/AbstractAssertJInspection.kt
+14
View File
@@ -227,6 +227,20 @@ open class AbstractAssertJInspection : AbstractBaseJavaLocalInspectionTool() {
holder.registerProblem(expression, message, quickfix)
}
protected fun registerMoveOutMethod(
holder: ProblemsHolder,
expression: PsiMethodCallExpression,
oldActualExpression: PsiMethodCallExpression,
replacementMethod: String,
quickFixSupplier: (String) -> List<LocalQuickFix>
) {
val originalMethod = getOriginalMethodName(oldActualExpression) ?: return
val description = MOVE_ACTUAL_EXPRESSION_DESCRIPTION_TEMPLATE.format(originalMethod, replacementMethod)
val message = MOVING_OUT_MESSAGE_TEMPLATE.format(originalMethod)
val quickfixes = quickFixSupplier(description)
holder.registerProblem(expression, message, *quickfixes.toTypedArray())
}
protected fun registerReplaceMethod(
holder: ProblemsHolder,
expression: PsiMethodCallExpression,
src/main/java/de/platon42/intellij/plugins/cajon/inspections/AssertThatCollectionOrMapExpressionInspection.kt
+67 -12
View File
@@ -1,15 +1,22 @@
package de.platon42.intellij.plugins.cajon.inspections
import com.intellij.codeInspection.ProblemsHolder
import com.intellij.openapi.ui.ComboBox
import com.intellij.psi.*
import com.intellij.util.ui.FormBuilder
import com.siyeh.ig.callMatcher.CallMatcher
import de.platon42.intellij.plugins.cajon.*
import de.platon42.intellij.plugins.cajon.quickfixes.MoveOutMethodCallExpressionQuickFix
import java.awt.BorderLayout
import javax.swing.JComponent
import javax.swing.JPanel
class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection() {
companion object {
private const val DISPLAY_NAME = "Asserting a collection or map specific expression"
private const val DEFAULT_MAP_VALUES_NEVER_NULL = 1
private val MAP_GET_MATCHER = CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "get").parameterCount(1)
@@ -34,25 +41,25 @@ class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection(
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)
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, MethodNames.IS_EMPTY).parameterCount(0),
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, MethodNames.IS_EMPTY).parameterCount(0)
),
MethodNames.IS_EMPTY, MethodNames.IS_NOT_EMPTY
),
Mapping(
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, "contains").parameterCount(1),
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, MethodNames.CONTAINS).parameterCount(1),
MethodNames.CONTAINS, MethodNames.DOES_NOT_CONTAIN
),
Mapping(
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, "containsAll").parameterCount(1),
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_COLLECTION, MethodNames.CONTAINS_ALL).parameterCount(1),
MethodNames.CONTAINS_ALL, null
),
Mapping(
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "containsKey").parameterCount(1),
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, MethodNames.CONTAINS_KEY).parameterCount(1),
MethodNames.CONTAINS_KEY, MethodNames.DOES_NOT_CONTAIN_KEY
),
Mapping(
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, "containsValue").parameterCount(1),
CallMatcher.instanceCall(CommonClassNames.JAVA_UTIL_MAP, MethodNames.CONTAINS_VALUE).parameterCount(1),
MethodNames.CONTAINS_VALUE, MethodNames.DOES_NOT_CONTAIN_VALUE
)
)
@@ -60,6 +67,9 @@ class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection(
override fun getDisplayName() = DISPLAY_NAME
@JvmField
var behaviorForMapValueEqualsNull: Int = DEFAULT_MAP_VALUES_NEVER_NULL
override fun buildVisitor(holder: ProblemsHolder, isOnTheFly: Boolean): PsiElementVisitor {
return object : JavaElementVisitor() {
override fun visitExpressionStatement(statement: PsiExpressionStatement) {
@@ -67,22 +77,53 @@ class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection(
if (!statement.hasAssertThat()) return
val staticMethodCall = statement.findStaticMethodCall() ?: return
val assertThatArgument = staticMethodCall.firstArg as? PsiMethodCallExpression ?: return
val assertThatArgument = staticMethodCall.getArgOrNull(0) as? PsiMethodCallExpression ?: return
val expectedCallExpression = statement.findOutmostMethodCall() ?: return
if (MAP_GET_MATCHER.test(assertThatArgument)) {
val nullOrNotNull = expectedCallExpression.getAllTheSameNullNotNullConstants()
if (nullOrNotNull != null) {
val replacementMethod = nullOrNotNull.map("containsKey", "doesNotContainKey")
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, replacementMethod) { desc, method ->
if (nullOrNotNull == true) {
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, MethodNames.CONTAINS_KEY) { desc, method ->
MoveOutMethodCallExpressionQuickFix(desc, method, useNullNonNull = true)
}
} else if (nullOrNotNull == false) {
when (behaviorForMapValueEqualsNull) {
1 -> // as doesNotContainKey(key)
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, MethodNames.DOES_NOT_CONTAIN_KEY) { desc, method ->
MoveOutMethodCallExpressionQuickFix(desc, method, useNullNonNull = true)
}
2 -> // as containsEntry(key, null)
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, MethodNames.CONTAINS_ENTRY) { desc, method ->
MoveOutMethodCallExpressionQuickFix(desc, method, keepExpectedAsSecondArgument = true, useNullNonNull = true)
}
3 -> // both
registerMoveOutMethod(
holder,
expectedCallExpression,
assertThatArgument,
MethodNames.DOES_NOT_CONTAIN_KEY + "/" + MethodNames.CONTAINS_ENTRY
) { desc ->
listOf(
MoveOutMethodCallExpressionQuickFix(
"Remove get() of actual expression and use assertThat().doesNotContainKey() instead (regular map)",
MethodNames.DOES_NOT_CONTAIN_KEY,
useNullNonNull = true
),
MoveOutMethodCallExpressionQuickFix(
"Remove get() of actual expression and use assertThat().containsEntry(key, null) instead (degenerated map)",
MethodNames.CONTAINS_ENTRY,
keepExpectedAsSecondArgument = true,
useNullNonNull = true
)
)
}
}
} else {
if (ANY_IS_EQUAL_TO_MATCHER.test(expectedCallExpression)) {
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, "containsEntry") { desc, method ->
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, MethodNames.CONTAINS_ENTRY) { desc, method ->
MoveOutMethodCallExpressionQuickFix(desc, method, keepExpectedAsSecondArgument = true)
}
} else if (ANY_IS_NOT_EQUAL_TO_MATCHER.test(expectedCallExpression)) {
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, "doesNotContainEntry") { desc, method ->
registerMoveOutMethod(holder, expectedCallExpression, assertThatArgument, MethodNames.DOES_NOT_CONTAIN_ENTRY) { desc, method ->
MoveOutMethodCallExpressionQuickFix(desc, method, keepExpectedAsSecondArgument = true)
}
}
@@ -102,6 +143,20 @@ class AssertThatCollectionOrMapExpressionInspection : AbstractAssertJInspection(
}
}
override fun createOptionsPanel(): JComponent {
val comboBox = ComboBox(
arrayOf("ignore", "as doesNotContainKey(key)", "as containsEntry(key, null)", "both choices")
)
comboBox.selectedIndex = behaviorForMapValueEqualsNull
comboBox.addActionListener { behaviorForMapValueEqualsNull = comboBox.selectedIndex }
val panel = JPanel(BorderLayout())
panel.add(
FormBuilder.createFormBuilder().addLabeledComponent("Fix get() on maps expecting null values:", comboBox).panel,
BorderLayout.NORTH
)
return panel
}
private class Mapping(
val callMatcher: CallMatcher,
val replacementForTrue: String,