School.java

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package edu.ucsb.cs156.happiercows.enums;
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import com.fasterxml.jackson.annotation.JsonCreator;
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import com.fasterxml.jackson.annotation.JsonFormat;
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import com.fasterxml.jackson.databind.JsonNode;
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import lombok.Getter;
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/**
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 * The schools that a Course can belong to. Only schools with
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 * {@code active = true} are offered in the Course create/edit dropdown (see
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 * {@code CourseController#getActiveSchools}); the others (e.g. CHICO_STATE)
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 * are kept here, together with a matching {@link edu.ucsb.cs156.happiercows.helpers.StudentCsvFormat}
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 * entry, purely as a worked example of how to onboard a new school and its
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 * own roster CSV format later.
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 */
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@Getter
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@JsonFormat(shape = JsonFormat.Shape.OBJECT)
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public enum School {
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    UCSB("UCSB", true),
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    CHICO_STATE("Chico State", false),
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    OTHER("Other", true);
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    private final String displayName;
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    private final boolean active;
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    private final String key = this.name();
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    School(String displayName, boolean active) {
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        this.displayName = displayName;
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        this.active = active;
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    }
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    /**
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     * Accepts either a plain string (the enum's key, e.g. what a frontend
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     * <select> submits) or the {@code {"key": "..."}} object shape
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     * this enum itself serializes to.
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     */
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    @JsonCreator
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    public static School fromKey(JsonNode node) {
39 1 1. fromKey : negated conditional → KILLED
 
        if (node == null) {
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            return null;
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        }
42 1 1. fromKey : negated conditional → KILLED
 
        if (node.isTextual()) {
43 1 1. fromKey : replaced return value with null for edu/ucsb/cs156/happiercows/enums/School::fromKey → KILLED
 
            return School.valueOf(node.asText().toUpperCase());
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        }
45 1 1. fromKey : negated conditional → KILLED
 
        if (node.has("key")) {
46 1 1. fromKey : replaced return value with null for edu/ucsb/cs156/happiercows/enums/School::fromKey → KILLED
 
            return School.valueOf(node.get("key").asText().toUpperCase());
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        }
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        throw new IllegalArgumentException("Invalid JSON node for School enum");
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    }
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}

Mutations

39

1.1
Location : fromKey
Killed by : edu.ucsb.cs156.happiercows.enums.SchoolTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.happiercows.enums.SchoolTests]/[method:fromKey_accepts_a_plain_text_node()] negated conditional → KILLED

42

1.1
Location : fromKey
Killed by : edu.ucsb.cs156.happiercows.enums.SchoolTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.happiercows.enums.SchoolTests]/[method:fromKey_accepts_a_plain_text_node()] negated conditional → KILLED

43

1.1
Location : fromKey
Killed by : edu.ucsb.cs156.happiercows.enums.SchoolTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.happiercows.enums.SchoolTests]/[method:fromKey_accepts_a_plain_text_node()] replaced return value with null for edu/ucsb/cs156/happiercows/enums/School::fromKey → KILLED

45

1.1
Location : fromKey
Killed by : edu.ucsb.cs156.happiercows.enums.SchoolTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.happiercows.enums.SchoolTests]/[method:fromKey_throws_for_a_node_that_is_neither_text_nor_has_a_key()] negated conditional → KILLED

46

1.1
Location : fromKey
Killed by : edu.ucsb.cs156.happiercows.enums.SchoolTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.happiercows.enums.SchoolTests]/[method:fromKey_accepts_the_object_shape_it_serializes_to()] replaced return value with null for edu/ucsb/cs156/happiercows/enums/School::fromKey → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0