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Implement pushing to reverse polish stack 

Co-Authored-By: td1223
This commit is contained in:
Gleb Koval 2024-11-05 16:47:35 +00:00
parent 9f5a89a63f
commit bdd06f9252
Signed by: cyclane
GPG Key ID: 15E168A8B332382C
2 changed files with 17 additions and 1 deletions
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10
src/main/java/ic/doc/ReversePolishStack.java
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@ -1,7 +1,15 @@
package ic.doc; package ic.doc;
import java.util.Stack;
public class ReversePolishStack { public class ReversePolishStack {
private final Stack<IntOperator> stack = new Stack<>();
public int getSize() { public int getSize() {
return 0; return stack.size();
}
public void push(IntOperator intOperator) {
stack.push(intOperator);
} }
} }

8
src/test/java/ic/doc/ReversePolishStackTest.java
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@ -12,4 +12,12 @@ public class ReversePolishStackTest {
public void reversePolishStackEmptyInitially() { public void reversePolishStackEmptyInitially() {
assertThat(reversePolishStack.getSize(), is(0)); assertThat(reversePolishStack.getSize(), is(0));
} }
@Test
public void canPushToReversePolishStack() {
reversePolishStack.push(new IntOperator(0, args -> 1));
assertThat(reversePolishStack.getSize(), is(1));
reversePolishStack.push(new IntOperator(0, args -> 2));
assertThat(reversePolishStack.getSize(), is(2));
}
} }