From e9fd35a303a5f5f41726c3216c8acd7598a3a494 Mon Sep 17 00:00:00 2001 From: Jim Hahn Date: Wed, 7 Feb 2018 17:13:32 -0500 Subject: Add ExtractAppender to facilite junit tests Added ExtractAppender to provide a way for junit tests to capture data sent to a logger. Changed logback.version to 1.2.3 and moved the property to the top-level pom. Updated license date in top-level pom. Refactored ExceptionsText, adding ErrorsTester and ThrowablesTester classes to reduce sonar issues. Change-Id: Ief7d08972bf4e7037b59c2afe4b77b252f2ad60a Issue-ID: POLICY-582 Signed-off-by: Jim Hahn --- .../common/utils/test/ConstructionError.java | 58 +++ .../policy/common/utils/test/ErrorsTester.java | 46 ++ .../policy/common/utils/test/ExceptionsTester.java | 490 ++------------------ .../policy/common/utils/test/ThrowablesTester.java | 515 +++++++++++++++++++++ .../utils/test/log/logback/ExtractAppender.java | 191 ++++++++ 5 files changed, 858 insertions(+), 442 deletions(-) create mode 100644 utils-test/src/main/java/org/onap/policy/common/utils/test/ConstructionError.java create mode 100644 utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java create mode 100644 utils-test/src/main/java/org/onap/policy/common/utils/test/ThrowablesTester.java create mode 100644 utils-test/src/main/java/org/onap/policy/common/utils/test/log/logback/ExtractAppender.java (limited to 'utils-test/src/main') diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/ConstructionError.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/ConstructionError.java new file mode 100644 index 00000000..336dc602 --- /dev/null +++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/ConstructionError.java @@ -0,0 +1,58 @@ +/* + * ============LICENSE_START======================================================= + * Integrity Audit + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.utils.test; + +/** + * An error that occurred while trying to construct an object for a junit test. + */ +public class ConstructionError extends AssertionError { + private static final long serialVersionUID = 1L; + + /** + * + */ + public ConstructionError() { + super(); + } + + /** + * @param message + */ + public ConstructionError(String message) { + super(message); + } + + /** + * @param cause + */ + public ConstructionError(Throwable cause) { + super(cause); + } + + /** + * @param message + * @param cause + */ + public ConstructionError(String message, Throwable cause) { + super(message, cause); + } + +} diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java new file mode 100644 index 00000000..12b48442 --- /dev/null +++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java @@ -0,0 +1,46 @@ +/* + * ============LICENSE_START======================================================= + * Integrity Monitor + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.utils.test; + +/** + * Used to test various Error subclasses. Uses reflection to identify the + * constructors that the subclass supports. + */ +public class ErrorsTester extends ThrowablesTester { + + /** + * Runs tests, on an Error subclass, for all of the standard constructors. + * If the Error subclass does not support a given type of constructor, then + * it skips that test. Does not throw an exception if no standard + * constructors are found. + * + * @param claz + * subclass to be tested + * @return the number of constructors that were found/tested + * @throws ConstructionError + * if the Error subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testError(Class claz) { + return testThrowable(claz); + } +} diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/ExceptionsTester.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/ExceptionsTester.java index 8705c48c..156fca89 100644 --- a/utils-test/src/main/java/org/onap/policy/common/utils/test/ExceptionsTester.java +++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/ExceptionsTester.java @@ -22,7 +22,6 @@ package org.onap.policy.common.utils.test; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; -import static org.junit.Assert.assertNull; import static org.junit.Assert.assertTrue; import java.lang.reflect.Constructor; @@ -31,7 +30,7 @@ import java.lang.reflect.Constructor; * Used to test various Exception subclasses. Uses reflection to identify the * constructors that the subclass supports. */ -public class ExceptionsTester { +public class ExceptionsTester extends ThrowablesTester { /** * Runs tests, on an Exception subclass, for all of the standard @@ -40,144 +39,43 @@ public class ExceptionsTester { * * @param claz * subclass to be tested - * @return the number of constructors that the test found/tested - * @throws Exception - * if the Exception cannot be constructed + * @return the number of constructors that were found/tested + * @throws ConstructionError + * if the Exception subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests */ - public int test(Class claz) throws Exception { - int ncons = 0; + public int test(Class claz) { + int ncons = testException(claz); - ncons += testDefault(claz); - ncons += testString(claz); - ncons += testThrowable(claz); - ncons += testException(claz); - ncons += testStringThrowable(claz); - ncons += testStringException(claz); - ncons += testStringThrowableBooleanBoolean(claz); - ncons += testStringExceptionBooleanBoolean(claz); - assertTrue(ncons > 0); return ncons; } /** - * Tests exceptions created via the default constructor. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns null
    • - *
  • getCause() returns null
    • - *
- * - * If the Exception subclass does not support this type of constructor, then - * this method simply returns. - * - * @param claz - * subclass to be tested - * @return {@code 1}, if the subclass supports this type of constructor, - * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed - */ - public int testDefault(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test - return 0; - } - - T ex = cons.newInstance(); - - assertNotNull(ex.toString()); - assertNull(ex.getMessage()); - assertNull(ex.getCause()); - - return 1; - } - - /** - * Tests exceptions created via the constructor that takes just a String. - * Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns null
    • - *
- * - * If the Exception subclass does not support this type of constructor, then - * this method simply returns. - * - * @param claz - * subclass to be tested - * @return {@code 1}, if the subclass supports this type of constructor, - * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed - */ - public int testString(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(String.class); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test - return 0; - } - - T ex = cons.newInstance("hello"); - - assertNotNull(ex.toString()); - assertEquals("hello", ex.getMessage()); - assertNull(ex.getCause()); - - return 1; - } - - /** - * Tests exceptions created via the constructor that takes just a Throwable. - * Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the cause's message
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
- * - * If the Exception subclass does not support this type of constructor, then - * this method simply returns. + * Runs tests, on an Exception subclass, for all of the standard + * constructors. If the Exception subclass does not support a given type of + * constructor, then it skips that test. Does not throw an exception + * if no standard constructors are found. * * @param claz * subclass to be tested - * @return {@code 1}, if the subclass supports this type of constructor, - * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed + * @return the number of constructors that were found/tested + * @throws ConstructionError + * if the Exception subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests */ - public int testThrowable(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(Throwable.class); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test - return 0; - } - - Throwable cause = new Throwable("expected exception"); - T ex = cons.newInstance(cause); + public int testException(Class claz) { + int ncons = 0; - assertEquals(ex.getMessage(), ex.getMessage()); - assertNotNull(ex.toString()); - assertEquals(cause, ex.getCause()); + ncons += testThrowable(claz); + ncons += testException_Exception(claz); + ncons += testException_StringException(claz); + ncons += testException_StringExceptionBooleanBoolean(claz); - return 1; + return ncons; } /** @@ -197,22 +95,19 @@ public class ExceptionsTester { * subclass to be tested * @return {@code 1}, if the subclass supports this type of constructor, * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed + * @throws ConstructionError + * if the Exception subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests */ - public int testException(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(Exception.class); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test + public int testException_Exception(Class claz) { + Constructor cons = getConstructor(claz, "exception", Exception.class); + if (cons == null) { return 0; } - Exception cause = new Exception("expected exception"); - T ex = cons.newInstance(cause); + Exception cause = new Exception(EXPECTED_EXCEPTION_MSG); + T ex = newInstance(cons, cause); assertNotNull(ex.toString()); assertEquals(ex.getMessage(), ex.getMessage()); @@ -221,48 +116,6 @@ public class ExceptionsTester { return 1; } - /** - * Tests exceptions created via the constructor that takes a String and a - * Throwable. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
- * - * If the Exception subclass does not support this type of constructor, then - * this method simply returns. - * - * @param claz - * subclass to be tested - * @return {@code 1}, if the subclass supports this type of constructor, - * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed - */ - public int testStringThrowable(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(String.class, Throwable.class); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test - return 0; - } - - Throwable cause = new Throwable("expected exception"); - T ex = cons.newInstance("world", cause); - - assertNotNull(ex.toString()); - assertEquals("world", ex.getMessage()); - assertEquals(cause, ex.getCause()); - - return 1; - } - /** * Tests exceptions created via the constructor that takes a String and an * Exception. Verifies that: @@ -281,22 +134,17 @@ public class ExceptionsTester { * subclass to be tested * @return {@code 1}, if the subclass supports this type of constructor, * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed + * @throws ConstructionError + * if the Exception subclass cannot be constructed */ - public int testStringException(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(String.class, Exception.class); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test + public int testException_StringException(Class claz) { + Constructor cons = getConstructor(claz, "string-exception", String.class, Exception.class); + if (cons == null) { return 0; } - Exception cause = new Exception("expected exception"); - T ex = cons.newInstance("world", cause); + Exception cause = new Exception(EXPECTED_EXCEPTION_MSG); + T ex = newInstance(cons, "world", cause); assertNotNull(ex.toString()); assertEquals("world", ex.getMessage()); @@ -305,52 +153,6 @@ public class ExceptionsTester { return 1; } - /** - * Tests exceptions created via the constructor that takes a String, a - * Throwable, and two booleans. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
  • suppressed exceptions can be added, if enabled
    • - *
  • the stack trace can be added, if enabled
    • - *
- * - * If the Exception subclass does not support this type of constructor, then - * this method simply returns. - * - * @param claz - * subclass to be tested - * @return {@code 1}, if the subclass supports this type of constructor, - * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed - */ - public int testStringThrowableBooleanBoolean(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(String.class, Throwable.class, Boolean.TYPE, Boolean.TYPE); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test - return 0; - } - - // test each combination of "message" and "cause" - testMessageCauseCombos(cons); - - // test each combination of the boolean flags - testSuppressStack(cons); - testSuppressNoStack(cons); - testNoSuppressStack(cons); - testNoSuppressNoStack(cons); - - return 1; - } - /** * Tests exceptions created via the constructor that takes a String, an * Exception, and two booleans. Verifies that: @@ -371,218 +173,22 @@ public class ExceptionsTester { * subclass to be tested * @return {@code 1}, if the subclass supports this type of constructor, * {@code 0} otherwise - * @throws Exception - * if the Exception cannot be constructed + * @throws ConstructionError + * if the Exception subclass cannot be constructed */ - public int testStringExceptionBooleanBoolean(Class claz) throws Exception { - Constructor cons; - - try { - cons = claz.getConstructor(String.class, Exception.class, Boolean.TYPE, Boolean.TYPE); - - } catch (NoSuchMethodException | SecurityException e) { - // this constructor is not defined so nothing to test + public int testException_StringExceptionBooleanBoolean(Class claz) { + Constructor cons = getConstructor(claz, "string-exception-flags", String.class, Exception.class, + Boolean.TYPE, Boolean.TYPE); + if (cons == null) { return 0; } // test each combination of "message" and "cause" - testMessageCauseCombos(cons); + testThrowable_MessageCauseCombos(cons); // test each combination of the boolean flags - testFlagCombos(cons); + testThrowable_FlagCombos(cons); return 1; } - - /** - * Tests each combination of values for the "message" and the "cause" when - * using the constructor that takes a String, a Throwable/Exception, and two - * booleans. Verifies that expected values are returned by toString()/i>, - * getMessage(), and getCause(). - * - * - * @param cons - * constructor to be invoked - * @throws Exception - * if the Exception cannot be constructed - */ - private void testMessageCauseCombos(Constructor cons) throws Exception { - T ex; - Exception cause = new Exception("expected throwable"); - - ex = cons.newInstance(null, null, true, true); - assertNotNull(ex.toString()); - assertNull(ex.getMessage()); - assertNull(ex.getCause()); - - ex = cons.newInstance("abc", null, true, true); - assertNotNull(ex.toString()); - assertEquals("abc", ex.getMessage()); - assertNull(ex.getCause()); - - ex = cons.newInstance(null, cause, true, true); - assertNotNull(ex.toString()); - assertNull(ex.getMessage()); - assertEquals(cause, ex.getCause()); - - ex = cons.newInstance("xyz", cause, true, true); - assertNotNull(ex.toString()); - assertEquals("xyz", ex.getMessage()); - assertEquals(cause, ex.getCause()); - } - - /** - * Tests each combination of values for the "message" and the "cause" when - * using the constructor that takes a String, a Throwable/Exception, and two - * booleans. Verifies that expected values are returned by toString()/i>, - * getMessage(), and getCause(). - * - * - * @param cons - * constructor to be invoked - * @throws Exception - * if the Exception cannot be constructed - */ - public void testFlagCombos(Constructor cons) throws Exception { - testSuppressStack(cons); - testSuppressNoStack(cons); - testNoSuppressStack(cons); - testNoSuppressNoStack(cons); - } - - /** - * Tests exceptions constructed with {@code enableSuppression=true} and - * {@code writableStackTrace=true}. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
  • suppressed exceptions are added
    • - *
  • the stack trace is added
    • - *
- * - * @param cons - * the exception's class constructor - * @throws Exception - * if the Exception cannot be constructed - */ - public void testSuppressStack(Constructor cons) throws Exception { - Exception cause = new Exception("expected exception"); - Throwable supr = new Throwable("expected suppressed exception"); - T ex = cons.newInstance("yes,yes", cause, true, true); - - ex.addSuppressed(supr); - - assertNotNull(ex.toString()); - assertEquals("yes,yes", ex.getMessage()); - assertEquals(cause, ex.getCause()); - - assertEquals(1, ex.getSuppressed().length); - assertEquals(supr, ex.getSuppressed()[0]); - - assertTrue(ex.getStackTrace().length > 0); - } - - /** - * Tests exceptions constructed with {@code enableSuppression=true} and - * {@code writableStackTrace=false}. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
  • suppressed exceptions are added
    • - *
  • the stack trace is not added
    • - *
- * - * @param cons - * the exception's class constructor - * @throws Exception - * if the Exception cannot be constructed - */ - public void testSuppressNoStack(Constructor cons) throws Exception { - Exception cause = new Exception("expected exception"); - Throwable supr = new Throwable("expected suppressed exception"); - T ex = cons.newInstance("yes,no", cause, true, false); - - ex.addSuppressed(supr); - - assertNotNull(ex.toString()); - assertEquals("yes,no", ex.getMessage()); - assertEquals(cause, ex.getCause()); - - assertEquals(1, ex.getSuppressed().length); - assertEquals(supr, ex.getSuppressed()[0]); - - assertEquals(0, ex.getStackTrace().length); - } - - /** - * Tests exceptions constructed with {@code enableSuppression=false} and - * {@code writableStackTrace=true}. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
  • suppressed exceptions are not added
    • - *
  • the stack trace is added
    • - *
- * - * @param cons - * the exception's class constructor - * @throws Exception - * if the Exception cannot be constructed - */ - public void testNoSuppressStack(Constructor cons) throws Exception { - Exception cause = new Exception("expected exception"); - Throwable supr = new Throwable("expected suppressed exception"); - T ex = cons.newInstance("no,yes", cause, false, true); - - ex.addSuppressed(supr); - - assertNotNull(ex.toString()); - assertEquals("no,yes", ex.getMessage()); - assertEquals(cause, ex.getCause()); - - assertEquals(0, ex.getSuppressed().length); - - assertTrue(ex.getStackTrace().length > 0); - } - - /** - * Tests exceptions constructed with {@code enableSuppression=false} and - * {@code writableStackTrace=false}. Verifies that: - *
    - *
  • toString() returns a non-null value
    • - *
  • getMessage() returns the original message passed to the - * constructor
    • - *
  • getCause() returns the original cause passed to the - * constructor
    • - *
  • suppressed exceptions are not added
    • - *
  • the stack trace is not added
    • - * - * @param cons - * the exception's class constructor - * @throws Exception - * if the Exception cannot be constructed - */ - public void testNoSuppressNoStack(Constructor cons) throws Exception { - Exception cause = new Exception("expected exception"); - Throwable supr = new Throwable("expected suppressed exception"); - T ex = cons.newInstance("no,no", cause, false, false); - - ex.addSuppressed(supr); - - assertNotNull(ex.toString()); - assertEquals("no,no", ex.getMessage()); - assertEquals(cause, ex.getCause()); - - assertEquals(0, ex.getSuppressed().length); - assertEquals(0, ex.getStackTrace().length); - } } diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/ThrowablesTester.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/ThrowablesTester.java new file mode 100644 index 00000000..bd8db4fc --- /dev/null +++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/ThrowablesTester.java @@ -0,0 +1,515 @@ +/* + * ============LICENSE_START======================================================= + * Integrity Monitor + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.utils.test; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; +import static org.junit.Assert.assertTrue; + +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Used to test various Throwable subclasses. Uses reflection to identify the + * constructors that the subclass supports. + */ +public class ThrowablesTester { + + private static Logger logger = LoggerFactory.getLogger(ThrowablesTester.class); + + public static final String EXPECTED_EXCEPTION_MSG = "expected exception"; + private static final String EXPECTED_SUPPRESSED_EXCEPTION_MSG = "expected suppressed exception"; + + /** + * Passed as a "cause" to constructors. + */ + public static final Exception CAUSE = new Exception(EXPECTED_EXCEPTION_MSG); + + /** + * Passed to new objects via the addSuppressed() method.. + */ + public static final Throwable SUPPRESSED = new Throwable(EXPECTED_SUPPRESSED_EXCEPTION_MSG); + + /** + * Runs tests, on an Throwable subclass, for all of the standard + * constructors. If the Throwable subclass does not support a given type of + * constructor, then it skips that test. Does not throw an exception + * if no standard constructors are found. + * + * @param claz + * subclass to be tested + * @return the number of constructors that were found/tested + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable(Class claz) { + int ncons = 0; + + ncons += testThrowable_Default(claz); + ncons += testThrowable_StringConstuctor(claz); + ncons += testThrowable_Throwable(claz); + ncons += testThrowable_StringThrowable(claz); + ncons += testThrowable_StringThrowableBooleanBoolean(claz); + + return ncons; + } + + /** + * Tests Throwable objects created via the default constructor. Verifies + * that: + *
      + *
    • toString() returns a non-null value
      • + *
    • getMessage() returns null
      • + *
    • getCause() returns null
      • + *
    + * + * If the Throwable subclass does not support this type of constructor, then + * this method simply returns. + * + * @param claz + * subclass to be tested + * @return {@code 1}, if the subclass supports this type of constructor, + * {@code 0} otherwise + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable_Default(Class claz) { + Constructor cons = getConstructor(claz, "default"); + if (cons == null) { + return 0; + } + + T ex = newInstance(cons); + + assertNotNull(ex.toString()); + assertNull(ex.getMessage()); + assertNull(ex.getCause()); + + return 1; + } + + /** + * Tests Throwable objects created via the constructor that takes just a + * String. Verifies that: + *
      + *
    • toString() returns a non-null value
      • + *
    • getMessage() returns the original message passed to the + * constructor
      • + *
    • getCause() returns null
      • + *
    + * + * If the Throwable subclass does not support this type of constructor, then + * this method simply returns. + * + * @param claz + * subclass to be tested + * @return {@code 1}, if the subclass supports this type of constructor, + * {@code 0} otherwise + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable_StringConstuctor(Class claz) { + Constructor cons = getConstructor(claz, "string", String.class); + if (cons == null) { + return 0; + } + + T ex = newInstance(cons, "hello"); + + assertNotNull(ex.toString()); + assertEquals("hello", ex.getMessage()); + assertNull(ex.getCause()); + + return 1; + } + + /** + * Tests Throwable objects created via the constructor that takes just a + * Throwable. Verifies that: + *
      + *
    • toString() returns a non-null value
      • + *
    • getMessage() returns the cause's message
      • + *
    • getCause() returns the original cause passed to the + * constructor
      • + *
    + * + * If the Throwable subclass does not support this type of constructor, then + * this method simply returns. + * + * @param claz + * subclass to be tested + * @return {@code 1}, if the subclass supports this type of constructor, + * {@code 0} otherwise + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable_Throwable(Class claz) { + Constructor cons = getConstructor(claz, "throwable", Throwable.class); + if (cons == null) { + return 0; + } + + T ex = newInstance(cons, CAUSE); + + assertEquals(ex.getMessage(), ex.getMessage()); + assertNotNull(ex.toString()); + assertEquals(CAUSE, ex.getCause()); + + return 1; + } + + /** + * Tests Throwable objects created via the constructor that takes a String + * and a Throwable. Verifies that: + *
      + *
    • toString() returns a non-null value
      • + *
    • getMessage() returns the original message passed to the + * constructor
      • + *
    • getCause() returns the original cause passed to the + * constructor
      • + *
    + * + * If the Throwable subclass does not support this type of constructor, then + * this method simply returns. + * + * @param claz + * subclass to be tested + * @return {@code 1}, if the subclass supports this type of constructor, + * {@code 0} otherwise + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable_StringThrowable(Class claz) { + Constructor cons = getConstructor(claz, "string-throwable", String.class, Throwable.class); + if (cons == null) { + return 0; + } + + T ex = newInstance(cons, "world", CAUSE); + + assertNotNull(ex.toString()); + assertEquals("world", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + return 1; + } + + /** + * Tests Throwable objects created via the constructor that takes a String, + * a Throwable, and two booleans. Verifies that: + *
      + *
    • toString() returns a non-null value
      • + *
    • getMessage() returns the original message passed to the + * constructor
      • + *
    • getCause() returns the original cause passed to the + * constructor
      • + *
    • suppressed exceptions can be added, if enabled
      • + *
    • the stack trace can be added, if enabled
      • + *
    + * + * If the Throwable subclass does not support this type of constructor, then + * this method simply returns. + * + * @param claz + * subclass to be tested + * @return {@code 1}, if the subclass supports this type of constructor, + * {@code 0} otherwise + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public int testThrowable_StringThrowableBooleanBoolean(Class claz) { + Constructor cons = getConstructor(claz, "string-throwable-flags", String.class, Throwable.class, + Boolean.TYPE, Boolean.TYPE); + if (cons == null) { + return 0; + } + + // test each combination of "message" and "cause" + testThrowable_MessageCauseCombos(cons); + + // test each combination of the boolean flags + testThrowable_SuppressStack(cons); + testThrowable_SuppressNoStack(cons); + testThrowable_NoSuppressStack(cons); + testThrowable_NoSuppressNoStack(cons); + + return 1; + } + + /** + * Tests each combination of values for the "message" and the "cause" when + * using the constructor that takes a String, a Throwable/Exception, and two + * booleans. Verifies that expected values are returned by toString()/i>, + * getMessage(), and getCause(). + *
+ * + * @param cons + * constructor to be invoked + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_MessageCauseCombos(Constructor cons) { + T ex; + + ex = newInstance(cons, null, null, true, true); + assertNotNull(ex.toString()); + assertNull(ex.getMessage()); + assertNull(ex.getCause()); + + ex = newInstance(cons, "abc", null, true, true); + assertNotNull(ex.toString()); + assertEquals("abc", ex.getMessage()); + assertNull(ex.getCause()); + + ex = newInstance(cons, null, CAUSE, true, true); + assertNotNull(ex.toString()); + assertNull(ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + ex = newInstance(cons, "xyz", CAUSE, true, true); + assertNotNull(ex.toString()); + assertEquals("xyz", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + } + + /** + * Tests each combination of values for the "message" and the "cause" when + * using the constructor that takes a String, a Throwable/Exception, and two + * booleans. Verifies that expected values are returned by toString()/i>, + * getMessage(), and getCause(). + * + * + * @param cons + * constructor to be invoked + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_FlagCombos(Constructor cons) { + testThrowable_SuppressStack(cons); + testThrowable_SuppressNoStack(cons); + testThrowable_NoSuppressStack(cons); + testThrowable_NoSuppressNoStack(cons); + } + + /** + * Tests Throwable objects constructed with {@code enableSuppression=true} + * and {@code writableStackTrace=true}. Verifies that: + *
    + *
  • toString() returns a non-null value
    • + *
  • getMessage() returns the original message passed to the + * constructor
    • + *
  • getCause() returns the original cause passed to the + * constructor
    • + *
  • suppressed exceptions are added
    • + *
  • the stack trace is added
    • + *
+ * + * @param cons + * the throwable's class constructor + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_SuppressStack(Constructor cons) { + T ex = newInstance(cons, "yes,yes", CAUSE, true, true); + + ex.addSuppressed(SUPPRESSED); + + assertNotNull(ex.toString()); + assertEquals("yes,yes", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + assertEquals(1, ex.getSuppressed().length); + assertEquals(SUPPRESSED, ex.getSuppressed()[0]); + + assertTrue(ex.getStackTrace().length > 0); + } + + /** + * Tests Throwable objects constructed with {@code enableSuppression=true} + * and {@code writableStackTrace=false}. Verifies that: + *
    + *
  • toString() returns a non-null value
    • + *
  • getMessage() returns the original message passed to the + * constructor
    • + *
  • getCause() returns the original cause passed to the + * constructor
    • + *
  • suppressed exceptions are added
    • + *
  • the stack trace is not added
    • + *
+ * + * @param cons + * the throwable's class constructor + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_SuppressNoStack(Constructor cons) { + T ex = newInstance(cons, "yes,no", CAUSE, true, false); + + ex.addSuppressed(SUPPRESSED); + + assertNotNull(ex.toString()); + assertEquals("yes,no", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + assertEquals(1, ex.getSuppressed().length); + assertEquals(SUPPRESSED, ex.getSuppressed()[0]); + + assertEquals(0, ex.getStackTrace().length); + } + + /** + * Tests Throwable objects constructed with {@code enableSuppression=false} + * and {@code writableStackTrace=true}. Verifies that: + *
    + *
  • toString() returns a non-null value
    • + *
  • getMessage() returns the original message passed to the + * constructor
    • + *
  • getCause() returns the original cause passed to the + * constructor
    • + *
  • suppressed exceptions are not added
    • + *
  • the stack trace is added
    • + *
+ * + * @param cons + * the throwable's class constructor + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_NoSuppressStack(Constructor cons) { + T ex = newInstance(cons, "no,yes", CAUSE, false, true); + + ex.addSuppressed(SUPPRESSED); + + assertNotNull(ex.toString()); + assertEquals("no,yes", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + assertEquals(0, ex.getSuppressed().length); + + assertTrue(ex.getStackTrace().length > 0); + } + + /** + * Tests Throwable objects constructed with {@code enableSuppression=false} + * and {@code writableStackTrace=false}. Verifies that: + *
    + *
  • toString() returns a non-null value
    • + *
  • getMessage() returns the original message passed to the + * constructor
    • + *
  • getCause() returns the original cause passed to the + * constructor
    • + *
  • suppressed exceptions are not added
    • + *
  • the stack trace is not added
    • + * + * @param cons + * the throwable's class constructor + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + * @throws AssertionError + * if the constructed objects fail to pass various tests + */ + public void testThrowable_NoSuppressNoStack(Constructor cons) { + T ex = newInstance(cons, "no,no", CAUSE, false, false); + + ex.addSuppressed(SUPPRESSED); + + assertNotNull(ex.toString()); + assertEquals("no,no", ex.getMessage()); + assertEquals(CAUSE, ex.getCause()); + + assertEquals(0, ex.getSuppressed().length); + assertEquals(0, ex.getStackTrace().length); + } + + /** + * Attempts to get a constructor for objects of a given type. + * + * @param claz + * class of objects whose constructor is to be gotten + * @param testType + * type of test being run + * @param argTypes + * argument types to be passed to the constructor + * @return the desired constructor, or {@code null} if the desired + * constructor is not available + */ + protected Constructor getConstructor(Class claz, String testType, + Class... argTypes) { + + try { + return claz.getConstructor(argTypes); + + } catch (NoSuchMethodException | SecurityException e) { + // this constructor is not defined so nothing to test + logger.debug("skipped test due to no " + testType + " constructor for: " + claz); + return null; + } + } + + /** + * Creates a new instance of an Throwable subclass. + * + * @param cons + * subclass constructor + * @param args + * arguments to be passed to the constructor + * @return a new instance of the Throwable subclass + * @throws ConstructionError + * if the Throwable subclass cannot be constructed + */ + protected T newInstance(Constructor cons, Object... args) { + try { + return cons.newInstance(args); + + } catch (InstantiationException | IllegalAccessException | IllegalArgumentException + | InvocationTargetException e) { + + throw new ConstructionError(e); + } + + } +} diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/log/logback/ExtractAppender.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/log/logback/ExtractAppender.java new file mode 100644 index 00000000..f012464c --- /dev/null +++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/log/logback/ExtractAppender.java @@ -0,0 +1,191 @@ +/* + * ============LICENSE_START======================================================= + * Integrity Audit + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.utils.test.log.logback; + +import java.util.ArrayList; +import java.util.LinkedHashMap; +import java.util.LinkedList; +import java.util.List; +import java.util.Queue; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import ch.qos.logback.classic.spi.ILoggingEvent; +import ch.qos.logback.core.AppenderBase; + +/** + * This is an appender that is intended for use by JUnit tests that wish to + * capture logged messages. The appender takes an optional list of regular + * expressions that are used to identify and extract data of interest. + *

    + * If no patterns are provided, then every logged message is recorded. However, + * if patterns are provided, then only messages that match one of the patterns + * are recorded. In addition, if the pattern contains a capture group that is + * non-null, only the captured group is recorded. Otherwise, the entire portion + * of the message that matches the pattern is recorded. + *

    + * All operations are thread-safe. + */ +public class ExtractAppender extends AppenderBase { + + /** + * Extracted text is placed here. + */ + private final Queue extracted; + + /** + * Regular expressions/Patterns to be used to extract text. Uses a + * LinkedHashMap so that order is preserved. + */ + private final LinkedHashMap patterns; + + /** + * Records every message that is logged. + */ + public ExtractAppender() { + this(new LinkedList<>()); + } + + /** + * Records portions of messages that match one of the regular expressions. + * + * @param regex + * regular expression (i.e., {@link Pattern}) to match + */ + public ExtractAppender(String... regex) { + this(new LinkedList<>(), regex); + } + + /** + * Rather than allocating an internal queue to store matched messages, + * messages are recorded in the specified target queue using the + * {@link Queue#offer(Object)} method. Note: whenever the queue is used, it + * will be synchronized to prevent simultaneous accesses. + * + * @param target + * @param regex + * regular expression (i.e., {@link Pattern}) to match + */ + public ExtractAppender(Queue target, String... regex) { + extracted = target; + patterns = new LinkedHashMap<>(regex.length); + + for (String re : regex) { + patterns.put(re, Pattern.compile(re)); + } + } + + /* + * (non-Javadoc) + * + * @see ch.qos.logback.core.AppenderBase#append(Object) + */ + @Override + protected void append(ILoggingEvent event) { + + String msg = event.getMessage(); + + synchronized (patterns) { + if (patterns.isEmpty()) { + addExtraction(msg); + return; + } + + for (Pattern p : patterns.values()) { + Matcher m = p.matcher(msg); + + if (m.find()) { + addGroupMatch(m); + break; + } + } + } + } + + /** + * Adds the first match group to {@link #extracted}. + * + * @param mat + * the matcher containing the groups + * @return {@code true} if a group was found, {@code false} otherwise + */ + private void addGroupMatch(Matcher mat) { + int ngroups = mat.groupCount(); + + for (int x = 1; x <= ngroups; ++x) { + String txt = mat.group(x); + + if (txt != null) { + addExtraction(txt); + return; + } + } + + addExtraction(mat.group()); + } + + /** + * Adds an item to {@link #extracted}, in a thread-safe manner. It uses the + * queue's offer() method so that the queue can discard the item if + * it so chooses, without generating an exception. + * + * @param txt + * text to be added + */ + private void addExtraction(String txt) { + synchronized (extracted) { + extracted.offer(txt); + } + } + + /** + * Gets the text that has been extracted. + * + * @return a copy of the text that has been extracted + */ + public List getExtracted() { + synchronized (extracted) { + return new ArrayList<>(extracted); + } + } + + /** + * Clears the list of extracted text. + */ + public void clearExtractions() { + synchronized (extracted) { + extracted.clear(); + } + } + + /** + * Adds a pattern to be matched by this appender. + * + * @param regex + * regular expression (i.e., {@link Pattern}) to match + */ + public void setPattern(String regex) { + synchronized (patterns) { + patterns.put(regex, Pattern.compile(regex)); + } + } + +} -- cgit 1.2.3-korg