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A TestNG like dataprovider runner for JUnit having a simplified syntax compared to all the existing JUnit4 features.

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package com.tngtech.java.junit.dataprovider.internal.placeholder;

import java.lang.reflect.Method;
import java.util.Arrays;

import com.tngtech.java.junit.dataprovider.DataProvider;
import com.tngtech.java.junit.dataprovider.Placeholders;
import com.tngtech.junit.dataprovider.placeholder.ReplacementData;

import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;

/**
 * Base class for all placeholder which are used to format the test method name. One can create his/her own placeholder
 * extending this and overriding {@link #getReplacementFor(String)}. Afterwards add the new placeholder to the other
 * placeholders by using {@link Placeholders#all()} (for details see {@link Placeholders}).
 * 

* Note: For new and future-proof implementations, please inherit from * {@link com.tngtech.junit.dataprovider.placeholder.BasePlaceholder} and use * {@link #getReplacementFor(String, ReplacementData)} instead. * * @see DataProvider#format() * @see Placeholders */ @SuppressFBWarnings(value = "NM_SAME_SIMPLE_NAME_AS_SUPERCLASS", justification = "for backwards compatibility and easier migration to core") public abstract class BasePlaceholder extends com.tngtech.junit.dataprovider.placeholder.BasePlaceholder { protected Method method; protected int idx; protected Object[] parameters; /** * @param placeholderRegex - regular expression to match the placeholder in the {@link DataProvider#format()}. */ public BasePlaceholder(String placeholderRegex) { super(placeholderRegex); } /** * Sets the given arguments as context for processing or replacement generation, respectively. *

* Note: For new and future-proof implementations, please inherit from * {@link com.tngtech.junit.dataprovider.placeholder.BasePlaceholder} and use * {@link #getReplacementFor(String, ReplacementData)} instead of {@link #setContext(Method, int, Object[])} and * {@link #getReplacementFor(String)}. * * @param method - test method * @param idx - index of the dataprovider row * @param parameters of the current dataprovider test to be executed */ public void setContext(Method method, int idx, Object[] parameters) { this.method = method; this.idx = idx; this.parameters = Arrays.copyOf(parameters, parameters.length); } /** * Executes this placeholder for the given {@link String} by searching all occurrences of the regular expression * supplied in the constructor and replaces them with the retrieved replacement from * {@link #getReplacementFor(String)}. If the regular expression does not match, an exact copy of the given * {@link String} is returned. *

* Note: For new and future-proof implementations, please inherit from * {@link com.tngtech.junit.dataprovider.placeholder.BasePlaceholder} and use * {@link #process(ReplacementData, String)} instead. * * @param formatPattern to be processed * @return the given {@code formatPattern} containing the generated replacements instead of matching patterns */ public String process(String formatPattern) { ReplacementData data = ReplacementData.of(method, idx, Arrays.asList(parameters)); return super.process(data, formatPattern); } /** * Generate and returns the replacement for the found and given placeholder. *

* Note: For new and future-proof implementations, please inherit from * {@link com.tngtech.junit.dataprovider.placeholder.BasePlaceholder} and use * {@link #getReplacementFor(String, ReplacementData)} instead. * * @param placeholder for which the replacement {@link String} should be returned * @return the replacement for the given {@code placeholder} (not {@code null}) */ protected abstract String getReplacementFor(String placeholder); }





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