Implements equals and hash code overrides for completion proposal

spring-shell-core/src/main/java/org/springframework/shell/CompletionProposal.java

@@ -16,6 +16,8 @@
 
 package org.springframework.shell;
 
+import java.util.Objects;
+
 /**
  * Represents a proposal for TAB completion, made not only of the text to append, but also metadata about the proposal.
  *
@@ -102,4 +104,21 @@ public boolean dontQuote() {
 	public String toString() {
 		return value;
 	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) return true;
+		if (o == null || getClass() != o.getClass()) return false;
+		CompletionProposal that = (CompletionProposal) o;
+		return dontQuote == that.dontQuote &&
+				Objects.equals(value, that.value) &&
+				Objects.equals(displayText, that.displayText) &&
+				Objects.equals(description, that.description) &&
+				Objects.equals(category, that.category);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(value, displayText, description, category, dontQuote);
+	}
 }

spring-shell-core/src/test/java/org/springframework/shell/CompletionProposalTest.java

@@ -0,0 +1,48 @@
+package org.springframework.shell;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.*;
+
+public class CompletionProposalTest {
+
+    private final String PROPOSAL = "test proposal";
+    private final String DESCRIPTION = "description";
+    private final String DISPLAY_TEXT = "displayText";
+    private final boolean DONT_QUOTE = true;
+    private final String CATEGORY = "category";
+    CompletionProposal completionProposal;
+
+
+    @Before
+    public void setup() {
+        completionProposal = new CompletionProposal(PROPOSAL);
+        completionProposal.category(CATEGORY);
+        completionProposal.description(DESCRIPTION);
+        completionProposal.displayText(DISPLAY_TEXT);
+        completionProposal.dontQuote(DONT_QUOTE);
+    }
+
+    @Test
+    public void equals() {
+        CompletionProposal completionProposal2 = new CompletionProposal(PROPOSAL);
+        completionProposal2.category(CATEGORY);
+        completionProposal2.description(DESCRIPTION);
+        completionProposal2.displayText(DISPLAY_TEXT);
+        completionProposal2.dontQuote(DONT_QUOTE);
+
+        assertThat(completionProposal, is(completionProposal2));
+    }
+
+    @Test
+    public void hashcode() {
+        CompletionProposal completionProposal2 = new CompletionProposal(PROPOSAL);
+        completionProposal2.category(CATEGORY);
+        completionProposal2.description(DESCRIPTION);
+        completionProposal2.displayText(DISPLAY_TEXT);
+        completionProposal2.dontQuote(DONT_QUOTE);
+        assertThat(completionProposal.hashCode(), is(completionProposal2.hashCode()));
+    }
+}