From d86cbcbabc4b251956bd2c5bf4dfa459a00bb239 Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Tue, 18 Jun 2019 17:44:32 -0400
Subject: Lots of frontend work

---
 src/test/java/bjc/everge/TestUtils.java | 115 ++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 src/test/java/bjc/everge/TestUtils.java

(limited to 'src/test/java/bjc/everge/TestUtils.java')

diff --git a/src/test/java/bjc/everge/TestUtils.java b/src/test/java/bjc/everge/TestUtils.java
new file mode 100644
index 0000000..2b9dc8d
--- /dev/null
+++ b/src/test/java/bjc/everge/TestUtils.java
@@ -0,0 +1,115 @@
+package bjc.everge;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+import static org.junit.Assert.*;
+
+/**
+ * Utility methods for testing.
+ *
+ * @author Ben Culkin
+ */
+public class TestUtils {
+	/**
+	 * Assert that a ReplParseException is thrown with a given message.
+	 *
+	 * @param msg
+	 * 		The message.
+	 * @param fle
+	 * 		The file to load input from.
+	 */
+	public static void assertThrownMessage(String msg, String fle) {
+		assertThrownMessage(false, msg, fle);
+	}
+
+	/**
+	 * Assert that a ReplParseException is thrown with a given message.
+	 *
+	 * @param logMsg
+	 * 		Log the exception message.
+	 * @param msg
+	 * 		The message.
+	 * @param fle
+	 * 		The file to load input from.
+	 */
+	public static void assertThrownMessage(boolean logMsg, String msg, String fle) {
+		try (FileInputStream fis = new FileInputStream(fle); Scanner scn = new Scanner(fis)) {
+			ReplPair.readList(new ArrayList<>(), scn);
+
+			assertTrue(false);
+		} catch (ReplParseException rpex) {
+			if (logMsg) System.err.println(rpex.toPrintString());
+
+			assertEquals(msg, rpex.toPrintString());
+		} catch (Exception ex) {
+			System.err.println("EXCEPTION");
+			ex.printStackTrace();
+
+			assertTrue(false);
+
+			return;
+		}
+	}
+
+	public static void assertMultiReplace(String fle, String... inps) {
+		assertMultiReplace(false, fle, inps);
+	}
+
+	public static void assertMultiReplace(boolean logRep, String fle, String... inps) {
+		if (inps.length < 2) throw new IllegalArgumentException("ERROR: Must provide at least two strings to assertMultiReplace");
+		if (inps.length % 2 != 0) throw new IllegalArgumentException("ERROR: Odd number of strings passed to assertMultiReplace");
+
+		List<ReplPair> lrp = null;
+
+		try (FileInputStream fis = new FileInputStream(fle); Scanner scn = new Scanner(fis)) {
+			lrp = ReplPair.readList(scn);
+		} catch (ReplParseException rpex) {
+			System.err.println(rpex.toPrintString());
+			
+			assertTrue(false);
+		} catch (Exception ex) {
+			System.err.println("EXCEPTION");
+			ex.printStackTrace();
+
+			assertTrue(false);
+
+			return;
+		}
+
+		for (int i = 0; i < inps.length; i += 2) {
+			String right = inps[i];
+			String inp   = inps[i + 1];
+
+			assertReplacesTo(logRep, right, lrp, inp);
+		}
+	}
+
+	public static void assertReplacesFrom(String right, String inp, String fle) {
+		assertMultiReplace(fle, right, inp);
+	}
+
+	public static void assertReplacesTo(String right, List<ReplPair> rps, String inp) {
+		assertReplacesTo(false, right, rps, inp);
+	}
+
+	public static void assertReplacesTo(boolean logRep, String right, List<ReplPair> rps, String inp) {
+		if (logRep) System.err.printf("\t[LOG] Checking '%s' -> '%s'\n", inp, right);
+
+		String tmp = inp;
+
+		for (ReplPair rp : rps) {
+			String oldTmp = tmp;
+
+			tmp = rp.apply(tmp);
+
+			if (logRep) System.err.printf("\t[LOG] '%s' -> '%s'\t%s\n", oldTmp, tmp, rp);
+		}
+
+		assertEquals(right, tmp);
+	}
+}
-- 
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