add the tests missed in last commit

app/src/test/java/helium314/keyboard/KeySpecParserTest.kt

@@ -0,0 +1,28 @@
+package helium314.keyboard
+
+import helium314.keyboard.keyboard.internal.KeySpecParser
+import helium314.keyboard.latin.common.Constants
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class KeySpecParserTest {
+    @Test fun label() {
+        assertEquals("a", KeySpecParser.getLabel("a"))
+        assertEquals("a", KeySpecParser.getLabel("a|b"))
+        assertEquals("hey", KeySpecParser.getLabel("hey|there"))
+        assertEquals("a|b", KeySpecParser.getLabel("a|b|c"))
+        assertEquals("a|b", KeySpecParser.getLabel("a\\|b"))
+        assertEquals("a|b", KeySpecParser.getLabel("a\\|b|c"))
+        assertEquals("a|b|c", KeySpecParser.getLabel("a\\|b|c|d"))
+    }
+
+    @Test fun code() {
+        assertEquals('a'.code, KeySpecParser.getCode("a"))
+        assertEquals('b'.code, KeySpecParser.getCode("a|b"))
+        assertEquals(Constants.CODE_OUTPUT_TEXT, KeySpecParser.getCode("hey|there"))
+        assertEquals('c'.code, KeySpecParser.getCode("a|b|c"))
+        assertEquals(Constants.CODE_OUTPUT_TEXT, KeySpecParser.getCode("a\\|b"))
+        assertEquals('c'.code, KeySpecParser.getCode("a\\|b|c"))
+        assertEquals('d'.code, KeySpecParser.getCode("a\\|b|c|d"))
+    }
+}