From 29d512725271b51eee18232e0bff8d8dc2868d46 Mon Sep 17 00:00:00 2001
From: Ben Culkin <scorpress@gmail.com>
Date: Tue, 17 Nov 2020 20:31:59 -0500
Subject: Add some tests for IMap/FunctionalMap

---
 src/test/java/bjc/funcdata/TestMapCreation.java | 38 +++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/test/java/bjc/funcdata/TestMapCreation.java

(limited to 'src/test/java/bjc/funcdata/TestMapCreation.java')

diff --git a/src/test/java/bjc/funcdata/TestMapCreation.java b/src/test/java/bjc/funcdata/TestMapCreation.java
new file mode 100644
index 0000000..26f09fc
--- /dev/null
+++ b/src/test/java/bjc/funcdata/TestMapCreation.java
@@ -0,0 +1,38 @@
+package bjc.funcdata;
+
+import static org.junit.Assert.*;
+
+import org.junit.*;
+
+@SuppressWarnings("javadoc")
+public class TestMapCreation {
+	@Test
+	public void mapOfNothingCreatesEmptyMap() {
+		IMap<String, String> map = IMap.of();
+		
+		assertEquals("Map is empty", 0, map.size());
+	}
+	
+	@Test(expected = IllegalArgumentException.class)
+	public void mapOfMismatchedCountErrors() {
+		@SuppressWarnings("unused")
+		IMap<String, String> map = IMap.of("thing1");
+	}
+	
+	@Test(expected = ClassCastException.class) 
+	public void mapOfMismatchedTypeErrors() {
+		IMap<String, String> map = IMap.of(1, 1.0);
+		
+		map.forEach((key, val) -> {
+			// An exception will be thrown here
+		});
+	}
+	
+	@Test
+	public void mapOfCreatesWithGivenContents() {
+		IMap<String, String> map = IMap.of("a", "A", "b", "B");
+		
+		assertEquals("Constructed map contains key 'a'", "a", map.containsKey("a"));
+		assertEquals("Constructed map has key 'a' mapped to value 'A'", "A", map.get("A"));
+	}
+}
-- 
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