From 97e51fe823b2a6ea437c625427094b2944c5378a Mon Sep 17 00:00:00 2001
From: Adrien Hopkins <ahopk127@my.yorku.ca>
Date: Fri, 8 Jul 2022 10:49:36 -0500
Subject: Added basic tests for the search rules

---
 src/test/java/sevenUnitsGUI/PresenterTest.java | 45 ++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/src/test/java/sevenUnitsGUI/PresenterTest.java b/src/test/java/sevenUnitsGUI/PresenterTest.java
index 0f54e7e..1379abd 100644
--- a/src/test/java/sevenUnitsGUI/PresenterTest.java
+++ b/src/test/java/sevenUnitsGUI/PresenterTest.java
@@ -21,7 +21,9 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.math.RoundingMode;
 import java.nio.file.Path;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.function.Function;
 import java.util.stream.Collectors;
@@ -33,6 +35,7 @@ import org.junit.jupiter.params.provider.MethodSource;
 
 import sevenUnits.unit.BaseDimension;
 import sevenUnits.unit.BritishImperial;
+import sevenUnits.unit.LinearUnit;
 import sevenUnits.unit.LinearUnitValue;
 import sevenUnits.unit.Metric;
 import sevenUnits.unit.Unit;
@@ -56,6 +59,10 @@ public final class PresenterTest {
 	static final Set<ObjectProduct<BaseDimension>> testDimensions = Set
 			.of(Metric.Dimensions.LENGTH, Metric.Dimensions.VELOCITY);
 	
+	private static final Stream<Function<Map.Entry<String, LinearUnit>, Map<String, LinearUnit>>> SEARCH_RULES = Stream
+			.of(PrefixSearchRule.NO_PREFIXES, PrefixSearchRule.COMMON_PREFIXES,
+					PrefixSearchRule.ALL_METRIC_PREFIXES);
+	
 	/**
 	 * @return rounding rules used by {@link #testRoundingRules}
 	 * @since 2022-04-16
@@ -68,6 +75,10 @@ public final class PresenterTest {
 		return Stream.of(SCIENTIFIC_ROUNDING, INTEGER_ROUNDING, SIG_FIG_ROUNDING);
 	}
 	
+	private static final Stream<Function<Map.Entry<String, LinearUnit>, Map<String, LinearUnit>>> getSearchRules() {
+		return SEARCH_RULES;
+	}
+	
 	private static final Set<String> names(Set<? extends Nameable> units) {
 		return units.stream().map(Nameable::getName).collect(Collectors.toSet());
 	}
@@ -253,6 +264,40 @@ public final class PresenterTest {
 		assertEquals(expectedOutputString, actualOutputString);
 	}
 	
+	/**
+	 * Tests that the Presenter correctly applies search rules.
+	 *
+	 * @param searchRule search rule to test
+	 * @since 2022-07-08
+	 */
+	@ParameterizedTest
+	@MethodSource("getSearchRules")
+	void testSearchRules(
+			Function<Map.Entry<String, LinearUnit>, Map<String, LinearUnit>> searchRule) {
+		// setup
+		final var viewBot = new ViewBot();
+		final var presenter = new Presenter(viewBot);
+		
+		presenter.setSearchRule(searchRule);
+		presenter.setOneWayConversionEnabled(false);
+		
+		presenter.database.clear();
+		presenter.database.addUnit("metre", Metric.METRE);
+		presenter.database.addUnit("inch", BritishImperial.Length.INCH);
+		presenter.updateView();
+		
+		// create expected output based on rule
+		final Set<String> expectedOutput = new HashSet<>();
+		expectedOutput.addAll(searchRule
+				.apply(Map.entry("inch", BritishImperial.Length.INCH)).keySet());
+		expectedOutput.addAll(
+				searchRule.apply(Map.entry("metre", Metric.METRE)).keySet());
+		final Set<String> actualOutput = viewBot.getFromUnitNames();
+		
+		// test output
+		assertEquals(expectedOutput, actualOutput);
+	}
+	
 	/**
 	 * Tests that settings can be saved to and loaded from a file.
 	 * 
-- 
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