Hello

I am new to Apex and just starting to learn it, so I would appreciate any help here.

I was informed the class needs to pass 75% before I can depoly it to my production org

Can anyone help me write a Test Class for this?

    for this not need to have test

public interface CMIAJsonEntry {
	String render();
}

  this is require for test class:

public class CMIAJsonEntryPair implements CMIAJsonEntry {
	private String key;
	private CMIAJsonEntry value;
	
	public CMIAJsonEntryPair(String key, CMIAJsonEntry value) {
		this.key = key;
		this.value = value;
	}
	
	public String render() {
		return '"' + key + '" : ' + value.render();
	}
}

 and this

public class CMIAJsonEntryMap implements CMIAJsonEntry {
	private LIST<CMIAJsonEntryPair> pairs;

	public CMIAJsonEntryMap() {
		pairs = new LIST<CMIAJsonEntryPair>();
	}
	
	public void addEntry(CMIAJsonEntryPair p) {
		pairs.add(p);
	}
	
	public void addEntry(String key, CMIAJsonEntry value) {
		pairs.add(new CMIAJsonEntryPair(key, value));
	}
	
	public void addEntry(String key, boolean value) {
		pairs.add(new CMIAJsonEntryPair(key, value ? CMIAJsonEntryBool.R_TRUE : CMIAJsonEntryBool.R_FALSE));
	}

	public void addEntry(String key, double value) {
		pairs.add(new CMIAJsonEntryPair(key, new CMIAJsonEntryDouble(value)));
	}
	
	public void addEntry(String key, integer value) {
		pairs.add(new CMIAJsonEntryPair(key, new CMIAJsonEntryInt(value)));		
	}
	
	public void addEntry(String key, String value) {
		pairs.add(new CMIAJsonEntryPair(key, new CMIAJsonEntryString(value)));		
	}
	
	public String render() {
		String r = '{';
		integer last = pairs.size() - 1;
		for (integer i = 0; i < pairs.size(); i++) {
			r = r + pairs.get(i).render();
			if (i != last)
				r = r + ', ';
		}
		return r + ' }';
	}
}

 Thank you in advance,

Apple