add test for VersionUtils (#1602)

* add test for VersionUtils

* add nullability annotation to VersionUtils

app/src/main/java/com/keylesspalace/tusky/util/VersionUtils.java

@@ -15,6 +15,8 @@
 
 package com.keylesspalace.tusky.util;
 
+import androidx.annotation.NonNull;
+
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -24,7 +26,7 @@ public class VersionUtils {
     private int minor;
     private int patch;
 
-    public VersionUtils(String versionString) {
+    public VersionUtils(@NonNull String versionString) {
         String regex = "([0-9]+)\\.([0-9]+)\\.([0-9]+).*";
         Pattern pattern = Pattern.compile(regex);
         Matcher matcher = pattern.matcher(versionString);

app/src/test/java/com/keylesspalace/tusky/util/VersionUtilsTest.kt

@@ -0,0 +1,36 @@
+package com.keylesspalace.tusky.util
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.Parameterized
+
+@RunWith(Parameterized::class)
+class VersionUtilsTest(
+        private val versionString: String,
+        private val supportsScheduledToots: Boolean
+) {
+
+    companion object {
+        @JvmStatic
+        @Parameterized.Parameters
+        fun data() = listOf(
+                arrayOf("2.0.0", false),
+                arrayOf("2a9a0", false),
+                arrayOf("1.0", false),
+                arrayOf("error", false),
+                arrayOf("", false),
+                arrayOf("2.6.9", false),
+                arrayOf("2.7.0", true),
+                arrayOf("2.00008.0", true),
+                arrayOf("2.7.2 (compatible; Pleroma 1.0.0-1168-ge18c7866-pleroma-dot-site)", true),
+                arrayOf("3.0.1", true)
+        )
+    }
+
+    @Test
+    fun testVersionUtils() {
+        assertEquals(VersionUtils(versionString).supportsScheduledToots(), supportsScheduledToots)
+    }
+
+}