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Tree test visit(absTerm)

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This commit is contained in:
Johanna Stuber 2021-01-31 00:16:26 +01:00
parent 71b4a1ab8c
commit 83f34eb00b
2 changed files with 62 additions and 9 deletions
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21
src/main/java/edu/kit/typicalc/model/step/AbsStep.java
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@ -3,6 +3,8 @@ package edu.kit.typicalc.model.step;
import edu.kit.typicalc.model.Conclusion;
import edu.kit.typicalc.model.Constraint;
import java.util.Objects;
/**
* Models one step of the inference tree where the abstraction rule is applied.
*/
@ -29,4 +31,23 @@ public abstract class AbsStep extends InferenceStep {
return this.premise;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
if (!super.equals(o)) {
return false;
}
AbsStep absStep = (AbsStep) o;
return premise.equals(absStep.premise);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), premise);
}
}

50
src/test/java/edu/kit/typicalc/model/TreeTest.java
View File

@ -1,17 +1,18 @@
package edu.kit.typicalc.model;
import edu.kit.typicalc.model.step.AbsStepDefault;
import edu.kit.typicalc.model.step.ConstStepDefault;
import edu.kit.typicalc.model.step.InferenceStep;
import edu.kit.typicalc.model.step.VarStepDefault;
import edu.kit.typicalc.model.term.AbsTerm;
import edu.kit.typicalc.model.term.ConstTerm;
import edu.kit.typicalc.model.term.IntegerTerm;
import edu.kit.typicalc.model.term.VarTerm;
import edu.kit.typicalc.model.type.NamedType;
import edu.kit.typicalc.model.type.TypeAbstraction;
import edu.kit.typicalc.model.type.TypeVariableKind;
import edu.kit.typicalc.model.type.*;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.*;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
@ -19,9 +20,11 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
class TreeTest {
private static final Map<VarTerm, TypeAbstraction> TYPE_ASSUMPTIONS = new HashMap<>();
private static final ConstTerm CONST = new IntegerTerm(10);
private static final VarTerm VAR = new VarTerm("var");
private static final AbsTerm ABS = new AbsTerm(VAR, VAR);
private static final NamedType TYPE = new NamedType("type");
private static final TypeAbstraction TYPE_ABS = new TypeAbstraction(TYPE, new ArrayList<>());
private static final TypeAbstraction TYPE_ABS = new TypeAbstraction(TYPE);
@BeforeAll
static void setUp() {
@ -54,12 +57,41 @@ class TreeTest {
});
}
@Test
void visitAbs() {
TypeVariable variable2 = new TypeVariable(TypeVariableKind.TREE, 2);
TypeVariable variable3 = new TypeVariable(TypeVariableKind.TREE, 3);
Tree tree = new Tree(TYPE_ASSUMPTIONS, ABS);
Map<VarTerm, TypeAbstraction> varTypeAss = new HashMap<>(TYPE_ASSUMPTIONS);
varTypeAss.put(VAR, new TypeAbstraction(variable2));
Conclusion varConclusion = new Conclusion(varTypeAss, VAR, variable3);
InferenceStep varStep = new VarStepDefault(new TypeAbstraction(variable2), variable2, varConclusion,
new Constraint(variable2, variable3));
Conclusion conclusion = new Conclusion(TYPE_ASSUMPTIONS, ABS, tree.getFirstTypeVariable());
InferenceStep expectedStep = new AbsStepDefault(varStep, conclusion,
new Constraint(tree.getFirstTypeVariable(), new FunctionType(variable2, variable3)));
assertEquals(expectedStep, tree.getFirstInferenceStep());
}
@Test
void visitConst() {
Tree tree = new Tree(TYPE_ASSUMPTIONS, CONST);
Conclusion conclusion = new Conclusion(TYPE_ASSUMPTIONS, CONST, tree.getFirstTypeVariable());
Constraint constraint = new Constraint(NamedType.INT, tree.getFirstTypeVariable());
InferenceStep expectedStep = new ConstStepDefault(conclusion, constraint);
assertEquals(expectedStep, tree.getFirstInferenceStep());
assertEquals(Collections.singletonList(constraint), tree.getConstraints());
}
@Test
void visitVar() {
Tree tree = new Tree(TYPE_ASSUMPTIONS, VAR);
Conclusion conclusion = new Conclusion(TYPE_ASSUMPTIONS, VAR, tree.getFirstTypeVariable());
InferenceStep expectedStep = new VarStepDefault(TYPE_ABS, TYPE, conclusion,
new Constraint(TYPE, tree.getFirstTypeVariable()));
Constraint constraint = new Constraint(TYPE, tree.getFirstTypeVariable());
InferenceStep expectedStep = new VarStepDefault(TYPE_ABS, TYPE, conclusion, constraint);
assertEquals(expectedStep, tree.getFirstInferenceStep());
assertEquals(Collections.singletonList(constraint), tree.getConstraints());
}
}