How to use StepFunction class of com.tngtech.jgiven package

Best JGiven code snippet using com.tngtech.jgiven.StepFunction

Source:ServeCoffeeTest.java

...4import org.junit.Test;5import org.junit.runner.RunWith;6import com.tngtech.java.junit.dataprovider.DataProvider;7import com.tngtech.java.junit.dataprovider.DataProviderRunner;8import com.tngtech.jgiven.StepFunction;9import com.tngtech.jgiven.annotation.Description;10import com.tngtech.jgiven.examples.coffeemachine.steps.GivenCoffee;11import com.tngtech.jgiven.examples.coffeemachine.steps.ThenCoffee;12import com.tngtech.jgiven.examples.coffeemachine.steps.WhenCoffee;13import com.tngtech.jgiven.examples.tags.Order;14import com.tngtech.jgiven.examples.tags.TagsWithCustomStyle;15import com.tngtech.jgiven.junit.ScenarioTest;16import com.tngtech.jgiven.tags.FeatureCaseDiffs;17import com.tngtech.jgiven.tags.FeatureDataTables;18import com.tngtech.jgiven.tags.Issue;19/**20 * Original example due to Cucumber Wiki.21 */22@RunWith( DataProviderRunner.class )23@Description( "In order to refresh myself</br>" +24        "as a customer</br>" +25        "I want coffee to be served" )26public class ServeCoffeeTest extends ScenarioTest<GivenCoffee, WhenCoffee, ThenCoffee> {27    @Test28    @Order( "1" )29    public void an_empty_coffee_machine_cannot_serve_any_coffee() throws Exception {30        given().an_empty_coffee_machine();31        when().I_insert_$_one_euro_coins( 5 )32                .and().I_press_the_coffee_button();33        then().an_error_should_be_shown()34                .and().no_coffee_should_be_served();35    }36    @Test37    @Order( "2" )38    public void no_coffee_left_error_is_shown_when_there_is_no_coffee_left() {39        given().an_empty_coffee_machine();40        when().I_insert_$_one_euro_coins( 5 )41                .and().I_press_the_coffee_button();42        then().the_message_$_is_shown( "Error: No coffees left" );43    }44    @Test45    @Order( "3" )46    public void not_enough_money_message_is_shown_when_insufficient_money_was_given() throws Exception {47        given().a_coffee_machine()48                .and().there_are_$_coffees_left_in_the_machine( 2 );49        when().I_insert_$_one_euro_coins( 1 )50                .and().I_press_the_coffee_button();51        then().the_message_$_is_shown( "Error: Insufficient money" );52    }53    @Test54    @FeatureDataTables55    @DataProvider( {56            "0, 0, Error: No coffees left",57            "0, 1, Error: No coffees left",58            "1, 0, Error: Insufficient money",59            "0, 5, Error: No coffees left",60            "1, 5, Enjoy your coffee!",61    } )62    public void correct_messages_are_shown( int coffees_left, int number_of_coins, String message ) throws Exception {63        given().a_coffee_machine()64                .and().there_are_$_coffees_left_in_the_machine( coffees_left );65        when().I_insert_$_one_euro_coins( number_of_coins )66                .and().I_press_the_coffee_button();67        then().the_message_$_is_shown( message );68    }69    @Test70    @FeatureDataTables71    @Issue( "#15" )72    @DataProvider( { "1", "3", "10" } )73    public void serving_a_coffee_reduces_the_number_of_available_coffees_by_one( int initial_coffees ) {74        given().a_coffee_machine()75                .and().there_are_$_coffees_left_in_the_machine( initial_coffees );76        when().I_insert_$_one_euro_coins( 2 )77                .and().I_press_the_coffee_button();78        then().a_coffee_should_be_served()79                .and().there_are_$_coffees_left_in_the_machine( initial_coffees - 1 );80    }81    @Test82    public void a_turned_off_coffee_machine_cannot_serve_coffee() throws Exception {83        given().a_coffee_machine()84                .and().the_machine_is_turned_off();85        when().I_press_the_coffee_button();86        then().no_coffee_should_be_served();87    }88    @TagsWithCustomStyle89    @Test90    @DataProvider( {91            "true, 1, 1, false",92            "true, 1, 2, true",93            "true, 0, 2, false",94            "false, 1, 2, false",95    } )96    public void buy_a_coffee( boolean onOrOff, int coffees, int dollars, boolean shouldOrShouldNot ) {97        given().a_coffee_machine().and().there_are_$_coffees_left_in_the_machine( coffees ).and().the_machine_is_$onOrOff( onOrOff ).and()98                .the_coffee_costs_$_euros( 2 );99        when().I_insert_$_one_euro_coins( dollars ).and().I_press_the_coffee_button();100        then().I_$shouldOrShouldNot_be_served_a_coffee( shouldOrShouldNot );101    }102    @Test103    @FeatureCaseDiffs104    @DataProvider( { "true", "false" } )105    public void turned_off_machines_should_not_serve_coffee( boolean onOrOff ) {106        given().a_coffee_machine()107                .and().there_are_$_coffees_left_in_the_machine( 2 )108                .and().the_machine_is_$onOrOff( onOrOff );109        when().I_insert_$_one_euro_coins( 2 ).and().I_press_the_coffee_button();110        if( onOrOff ) {111            then().I_should_be_served_a_coffee();112        } else {113            then().I_should_not_be_served_a_coffee().and().no_error_is_shown();114        }115    }116    @Test117    @FailingOnPurpose118    public void a_failing_scenario_for_demonstration_purposes() {119        given().a_coffee_machine()120                .and().there_are_no_more_coffees_left();121        when().I_press_the_coffee_button();122        then().I_should_be_served_a_coffee()123                .and().steps_following_a_failed_step_should_be_skipped();124    }125    @Test126    @FailingOnPurpose127    @DataProvider( {128            "true",129            "false"130    } )131    public void a_scenario_with_a_failing_test_case_for_demonstration_purposes( boolean withCoffees ) {132        given().a_coffee_machine();133        if( withCoffees ) {134            given().and().there_are_$_coffees_left_in_the_machine( 2 );135        }136        when().I_insert_$_one_euro_coins( 2 ).and().I_press_the_coffee_button();137        then().I_should_be_served_a_coffee();138    }139    @Test140    public void intro_words_are_not_required() {141        given().a_coffee_machine()142                .the_coffee_costs_$_euros( 5 )143                .there_are_$_coffees_left_in_the_machine( 3 );144        when().I_press_the_coffee_button();145        then().an_error_should_be_shown()146                .no_coffee_should_be_served();147    }148    // tag::dataprovider[]149    @Test150    @DataProvider( {151            "1, 1",152            "0, 2",153            "1, 0"154    } )155    public void coffee_is_not_served( int coffees, int euros ) {156        given().a_coffee_machine()157                .and().the_coffee_costs_$_euros( 2 )158                .and().there_are_$_coffees_left_in_the_machine( coffees );159        when().I_insert_$_one_euro_coins( euros )160                .and().I_press_the_coffee_button();161        then().I_should_not_be_served_a_coffee();162    }163    // end::dataprovider[]164    @FailingOnPurpose165    @Test( timeout = 1000 )166    public void shouldFailWithUnexpectedRuntimeException() throws Exception {167        then().$( "should throw a runtime exception", //$NON-NLS-1$168                new StepFunction<ThenCoffee>() {169                    @Override170                    public void apply( final ThenCoffee stage )171                            throws Exception {172                        Thread.sleep( 2000 );173                    }174                } );175    }176    // tag::casedescription[]177    @Test178    @DataProvider( {179            "On the first run, 1, quite ok",180            "And on the second run, 2, well-done"181    } )182    @CaseAs( "$1" )...

Source:StageBase.java

1package com.tngtech.jgiven.base;2import com.tngtech.jgiven.StepFunction;3import com.tngtech.jgiven.annotation.Hidden;4/**5 * Useful base class for step definitions as it provides a {@link #self()} method6 * to create fluent interfaces.7 * <p>8 * Direct subclasses should provide introduction words (see {@link com.tngtech.jgiven.annotation.IntroWord}).9 * <p>10 * Typically one derives from one of the language-specific step definition classes, which11 * already provide a handful of useful introduction words.12 *13 * @param <SELF> the type of the subclass14 * @see com.tngtech.jgiven.Stage15 * @see com.tngtech.jgiven.lang.de.Stufe16 */17public class StageBase<SELF extends StageBase<?>> {18    @Hidden19    @SuppressWarnings( "unchecked" )20    public SELF self() {21        return (SELF) this;22    }23    /**24     * A step method for creating ad-hoc steps using lambdas.25     *26     * <h2>Example Usage</h2>27     * <pre>{@code 28     *     given().$( "Two negative arguments", stage -> {29     *        stage.given().argument( -5 )30     *             .and().argument( -6 );31     *     });32     * }</pre>33     *34     * @param description the description of the step35     * @param function the implementation of the step in form of a function where the parameter is the stage the step is executed in36     * @since 0.7.137     */38    public SELF $( String description, @Hidden StepFunction<? super SELF> function ) throws Exception {39        function.apply( self() );40        return self();41    }42    /**43     * A simple helper to provide a description44     *45     * <h2>Example Usage</h2>46     * <pre>{@code47     *     given().$( "a description to improve the report, but is not related to any code that needs to be executed");48     *     });49     * }</pre>50     *51     * @param description the description of the step52     * @since 0.15.4...

Source:StepFunction.java

1package com.tngtech.jgiven;2/**3 * A functional interface for defining ad-hoc steps.4 *5 * @see Stage#$(String, StepFunction)6 * @param <STAGE> the stage in which this step is executed7 * @since 0.7.1            8 */9public interface StepFunction<STAGE> {10    public void apply( STAGE stage ) throws Exception;11}...

StepFunction

Using AI Code Generation

1import com.tngtech.jgiven.Stage;2import com.tngtech.jgiven.annotation.ExpectedScenarioState;3import com.tngtech.jgiven.annotation.ScenarioState;4import com.tngtech.jgiven.annotation.ScenarioStage;5import com.tngtech.jgiven.annotation.Table;6import com.tngtech.jgiven.annotation.TableHeader;7import com.tngtech.jgiven.annotation.TableRow;8import com.tngtech.jgiven.junit.ScenarioTest;9import com.tngtech.jgiven.tags.FeatureBasic;10import com.tngtech.jgiven.tags.FeatureDataTables;11import com.tngtech.jgiven.tags.Issue;12import com.tngtech.jgiven.tags.IssueLink;13import com.tngtech.jgiven.tags.IssueLinks;14import com.tngtech.jgiven.tags.IssueType;15import com.tngtech.jgiven.tags.IssueTypes;16import com.tngtech.jgiven.tags.IssueUrl;17import com.tngtech.jgiven.tags.IssueUrls;18import com.tngtech.jgiven.tags.IssueValue;19import com.tngtech.jgiven.tags.IssueValues;20import com.tngtech.jgiven.tags.IssueVersions;21import com.tngtech.jgiven.tags.IssueVersion;22import com.tngtech.jgiven.tags.IssueVersionType;23import com.tngtech.jgiven.tags.IssueVersionTypes;24import com.tngtech.jgiven.ta

StepFunction

Using AI Code Generation

1import com.tngtech.jgiven.annotation.*;2import com.tngtech.jgiven.junit.*;3import com.tngtech.jgiven.junit.ScenarioTest;4import com.tngtech.jgiven.report.model.*;5import com.tngtech.jgiven.report.model.Word;6import org.junit.*;7import org.junit.runner.*;8import org.junit.runners.*;9import java.util.*;10import com.tngtech.jgiven.base.*;11import com.tngtech.jgiven.annotation.*;12import com.tngtech.jgiven.annotati

StepFunction

Using AI Code Generation

1public class StepFunction{2    public void test1(){3        StepFunction stepFunction = new StepFunction();4        stepFunction.given().a_step_function().when().the_function_is_evaluated().then().the_result_is();5    }6    public StepFunction given(){7        return this;8    }9    public StepFunction a_step_function(){10        return this;11    }12    public StepFunction when(){13        return this;14    }15    public StepFunction the_function_is_evaluated(){16        return this;17    }18    public StepFunction then(){19        return this;20    }21    public StepFunction the_result_is(){22        return this;23    }24}

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