Basic test for enum

common-utils/src/test/java/me/zodac/advent/ColourTest.java

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+/*
+ * BSD Zero Clause License
+ *
+ * Copyright (c) 2021-2023 zodac.me
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+package me.zodac.advent;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+/**
+ * Unit tests for {@link Colour}.
+ */
+class ColourTest {
+
+    @ParameterizedTest
+    @CsvSource({
+        "blue,BLUE",    // Lowercase
+        "BLUE,BLUE",    // Uppercase
+        "BlUe,BLUE",    // Mixed case
+        "green,GREEN",  // Green
+        "red,RED"       // Red
+    })
+    void testGet(final String input, final Colour expected) {
+        assertThat(Colour.get(input))
+            .isEqualTo(expected);
+    }
+
+    @Test
+    void testGet_givenInvalidInput() {
+        assertThatThrownBy(() -> Colour.get("invalid"))
+            .isInstanceOf(IllegalArgumentException.class)
+            .hasMessage("Unable to find Colour for input 'invalid'");
+    }
+}