JSUnit

(jsunit)

Overview

The JSUnitAssertFunctions class provides a comprehensive set of assertion methods for unit testing in Servoy. It supports operations such as equality checks, regular expression matching, null checks, and conditional assertions. These methods enable the validation of test outcomes with detailed messages and tolerances for specific scenarios like floating-point comparisons. Assertions can evaluate conditions as true or false, verify object definitions, or ensure two values are the same or different. Additional functions allow forcing test failures and checking against expected exceptions.

Methods Summarized

Type	Name	Summary
void	assertEquals(expected, actual)	Asserts that two values are equal.
void	assertEquals(message, expected, actual)	Asserts that two values are equal.
void	assertFalse(boolean_condition)	Asserts that a condition is false.
void	assertFalse(message, boolean_condition)	Asserts that a condition is false.
void	assertFloatEquals(expectedFloat, actualFloat, tolerance)	Asserts that two floating point values are equal to within a given tolerance.
void	assertFloatEquals(message, expectedFloat, actualFloat, tolerance)	Asserts that two floating point values are equal to within a given tolerance.
void	assertMatches(regularExpression, actualString)	Asserts that a regular expression matches a string.
void	assertMatches(message, regularExpression, actualString)	Asserts that a regular expression matches a string.
void	assertNotNull(object)	Asserts that an object is not null.
void	assertNotNull(message, object)	Asserts that an object is not null.
void	assertNotSame(notExpected, actual)	Asserts that two values are not the same.
void	assertNotSame(message, notExpected, actual)	Asserts that two values are not the same.
void	assertNotUndefined(definedObject)	Asserts that an object is not undefined.
void	assertNotUndefined(message, definedObject)	Asserts that an object is not undefined.
void	assertNull(nullValue)	Asserts that an object is null.
void	assertNull(message, nullValue)	Asserts that an object is null.
void	assertSame(expected, actual)	Asserts that two values are the same.
void	assertSame(message, expected, actual)	Asserts that two values are the same.
void	assertTrue(boolean_condition)	Asserts that a condition is true.
void	assertTrue(message, boolean_condition)	Asserts that a condition is true.
void	assertUndefined(undefinedValue)	Asserts that an object is undefined.
void	assertUndefined(message, undefinedValue)	Asserts that an object is undefined.
void	fail(message)	Fails a test.
void	fail(message, instanceOfCallStack)	Fails a test.
void	fail(message, instanceOfCallStack, userMessage)	Fails a test.

Methods Detailed

assertEquals(expected, actual)

Asserts that two values are equal. AssertionFailedError is thrown if the actual value does not match the regular expression.

Parameters

• Object expected the expected value.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are equal. AssertionFailedError is thrown if the actual value does not match the regular expression.
jsunit.assertEquals("Solution name test", "someSolution", application.getSolutionName());
jsunit.assertEquals("Simple math test", 2, 1 + 1);

assertEquals(message, expected, actual)

Asserts that two values are equal. AssertionFailedError is thrown if the actual value does not match the regular expression.

Parameters

• String message The test description/message.

• Object expected the expected value.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are equal. AssertionFailedError is thrown if the actual value does not match the regular expression.
jsunit.assertEquals("Solution name test", "someSolution", application.getSolutionName());
jsunit.assertEquals("Simple math test", 2, 1 + 1);

assertFalse(boolean_condition)

Asserts that a condition is false. AssertionFailedError is thrown if the evaluation was not false.

Parameters

• Boolean boolean_condition the actual value.

Returns: void

Sample

// Asserts that a condition is false. AssertionFailedError is thrown if the evaluation was not false.
jsunit.assertFalse("False test", application.isLastPrintPreviewPrinted());

assertFalse(message, boolean_condition)

Asserts that a condition is false. AssertionFailedError is thrown if the evaluation was not false.

Parameters

• String message The test description/message.

• Boolean boolean_condition the actual value.

Returns: void

Sample

// Asserts that a condition is false. AssertionFailedError is thrown if the evaluation was not false.
jsunit.assertFalse("False test", application.isLastPrintPreviewPrinted());

assertFloatEquals(expectedFloat, actualFloat, tolerance)

Asserts that two floating point values are equal to within a given tolerance. AssertionFailedError is thrown if the expected value is not within the tolerance of the actual one.

Parameters

• Number expectedFloat the expected value.

• Number actualFloat the actual value.

• Number tolerance tolerance when comparing.

Returns: void

Sample

// Asserts that two floating point values are equal to within a given tolerance. AssertionFailedError is thrown if the expected value is not within the tolerance of the actual one.
jsunit.assertFloatEquals("Float equals test", 3.12, 3.121, 0.0015);

assertFloatEquals(message, expectedFloat, actualFloat, tolerance)

Asserts that two floating point values are equal to within a given tolerance. AssertionFailedError is thrown if the expected value is not within the tolerance of the actual one.

Parameters

• String message The test description/message.

• Number expectedFloat the expected value.

• Number actualFloat the actual value.

• Number tolerance tolerance when comparing.

Returns: void

Sample

// Asserts that two floating point values are equal to within a given tolerance. AssertionFailedError is thrown if the expected value is not within the tolerance of the actual one.
jsunit.assertFloatEquals("Float equals test", 3.12, 3.121, 0.0015);

assertMatches(regularExpression, actualString)

Asserts that a regular expression matches a string. AssertionFailedError is thrown if the expected value is not the actual one.

Parameters

• Object regularExpression the regular expression used for matching.

• String actualString the actual value to be matched.

Returns: void

Sample

// Asserts that a regular expression matches a string. AssertionFailedError is thrown if the expected value is not the actual one.
jsunit.assertMatches(new RegExp("gr(a|e)y"), "gray");

assertMatches(message, regularExpression, actualString)

Asserts that a regular expression matches a string. AssertionFailedError is thrown if the expected value is not the actual one.

Parameters

• String message The test description/message.

• Object regularExpression the regular expression used for matching.

• String actualString the actual value to be matched.

Returns: void

Sample

// Asserts that a regular expression matches a string. AssertionFailedError is thrown if the expected value is not the actual one.
jsunit.assertMatches("Match test", new RegExp("gr(a|e)y"), "gray");

assertNotNull(object)

Asserts that an object is not null. AssertionFailedError is thrown if the object is not null.

Parameters

• Object object the actual value.

Returns: void

Sample

// Asserts that an object is not null. AssertionFailedError is thrown if the object is not null.
var a; // this is undefined, not null
jsunit.assertNotNull(a);

assertNotNull(message, object)

Asserts that an object is not null. AssertionFailedError is thrown if the object is not null.

Parameters

• String message The test description/message.

• Object object the actual value.

Returns: void

Sample

// Asserts that an object is not null. AssertionFailedError is thrown if the object is not null.
var a; // this is undefined, not null
jsunit.assertNotNull("Not null test", a);

assertNotSame(notExpected, actual)

Asserts that two values are not the same. AssertionFailedError is thrown if the expected value is the actual one.

Parameters

• Object notExpected the value that is not expected.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are not the same. AssertionFailedError is thrown if the expected value is the actual one.
var a = new Date(1990, 1, 1);
var b = new Date(1990, 1, 1);
jsunit.assertNotSame(a, b);
jsunit.assertEquals("But equals", a, b);

assertNotSame(message, notExpected, actual)

Asserts that two values are not the same. AssertionFailedError is thrown if the expected value is the actual one.

Parameters

• String message The test description/message.

• Object notExpected the value that is not expected.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are not the same. AssertionFailedError is thrown if the expected value is the actual one.
var a = new Date(1990, 1, 1);
var b = new Date(1990, 1, 1);
jsunit.assertNotSame("Not same test", a, b);
jsunit.assertEquals("But equals", a, b);

assertNotUndefined(definedObject)

Asserts that an object is not undefined. AssertionFailedError is thrown if the object is undefined.

Parameters

• Object definedObject the actual value.

Returns: void

Sample

// Asserts that an object is not undefined. AssertionFailedError is thrown if the object is undefined.
var a = 0;
jsunit.assertNotUndefined(a);

assertNotUndefined(message, definedObject)

Asserts that an object is not undefined. AssertionFailedError is thrown if the object is undefined.

Parameters

• String message The test description/message.

• Object definedObject the actual value.

Returns: void

Sample

// Asserts that an object is not undefined. AssertionFailedError is thrown if the object is undefined.
var a = 0;
jsunit.assertNotUndefined("Not undefined test", a);

assertNull(nullValue)

Asserts that an object is null. AssertionFailedError is thrown if the object is not null.

Parameters

• Object nullValue the actual value.

Returns: void

Sample

// Asserts that an object is null. AssertionFailedError is thrown if the object is not null.
jsunit.assertNull("Null test", null);

assertNull(message, nullValue)

Asserts that an object is null. AssertionFailedError is thrown if the object is not null.

Parameters

• String message The test description/message.

• Object nullValue the actual value.

Returns: void

Sample

// Asserts that an object is null. AssertionFailedError is thrown if the object is not null.
jsunit.assertNull("Null test", null);

assertSame(expected, actual)

Asserts that two values are the same. AssertionFailedError is thrown if the expected value is not the actual one.

Parameters

• Object expected the expected value.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are the same. AssertionFailedError is thrown if the expected value is not the actual one.
var a = new Date(1990, 1, 1);
var b = a;
jsunit.assertSame(a, b);

assertSame(message, expected, actual)

Asserts that two values are the same. AssertionFailedError is thrown if the expected value is not the actual one.

Parameters

• String message The test description/message.

• Object expected the expected value.

• Object actual the actual value.

Returns: void

Sample

// Asserts that two values are the same. AssertionFailedError is thrown if the expected value is not the actual one.
var a = new Date(1990, 1, 1);
var b = a;
jsunit.assertSame("Same test", a, b);

assertTrue(boolean_condition)

Asserts that a condition is true. AssertionFailedError is thrown if the evaluation was not true.

Parameters

• Boolean boolean_condition the actual value.

Returns: void

Sample

// Asserts that a condition is true. AssertionFailedError is thrown if the evaluation was not true.
jsunit.assertTrue("True test", application.isLastPrintPreviewPrinted());

assertTrue(message, boolean_condition)

Asserts that a condition is true. AssertionFailedError is thrown if the evaluation was not true.

Parameters

• String message The test description/message.

• Boolean boolean_condition the actual value.

Returns: void

Sample

// Asserts that a condition is true. AssertionFailedError is thrown if the evaluation was not true.
jsunit.assertTrue("True test", application.isLastPrintPreviewPrinted());

assertUndefined(undefinedValue)

Asserts that an object is undefined. AssertionFailedError is thrown if the object is defined.

Parameters

• Object undefinedValue the actual value.

Returns: void

Sample

// Asserts that an object is undefined. AssertionFailedError is thrown if the object is defined.
jsunit.assertUndefined("Undefined test", thisIsUndefined);

assertUndefined(message, undefinedValue)

Asserts that an object is undefined. AssertionFailedError is thrown if the object is defined.

Parameters

• String message The test description/message.

• Object undefinedValue the actual value.

Returns: void

Sample

// Asserts that an object is undefined. AssertionFailedError is thrown if the object is defined.
jsunit.assertUndefined(thisIsUndefined);

fail(message)

Fails a test. AssertionFailedError is always thrown.

Parameters

• String message The test description/message. This is usually the only parameter specified when calling this method.

Returns: void

Sample

// Fails a test. AssertionFailedError is always thrown.
jsunit.fail("Fail test");
jsunit.fail("test", null, "Fail"); // 2nd param is not used in Servoy, params 3 and 1 get merged to form a message. The result is the same as in the line above.

fail(message, instanceOfCallStack)

Fails a test. AssertionFailedError is always thrown.

Parameters

• String message The test description/message. This is usually the only parameter specified when calling this method.

• Object instanceOfCallStack an internal JSUnit call stack. Use null for this if you want to get to the next optional parameter. Usually not specified.

Returns: void

Sample

// Fails a test. AssertionFailedError is always thrown.
jsunit.fail("Fail test");
jsunit.fail("test", null, "Fail"); // 2nd param is not used in Servoy, params 3 and 1 get merged to form a message. The result is the same as in the line above.

fail(message, instanceOfCallStack, userMessage)

Fails a test. AssertionFailedError is always thrown.

Parameters

• String message The test description/message. This is usually the only parameter specified when calling this method.

• Object instanceOfCallStack an internal JSUnit call stack. Use null for this if you want to get to the next optional parameter. Usually not specified.

• String userMessage a user message. Usually not specified.

Returns: void

Sample

// Fails a test. AssertionFailedError is always thrown.
jsunit.fail("Fail test");
jsunit.fail("test", null, "Fail"); // 2nd param is not used in Servoy, params 3 and 1 get merged to form a message. The result is the same as in the line above.

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