Add a couple of tests for markdown parsing

I was trying to see if I had any memory issues but at least for the few tests I added, nothing seemed to stand out

md4k/build.gradle.kts

@@ -39,3 +39,8 @@ android {
         jvmTarget = "1.8"
     }
 }
+
+dependencies {
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test:runner:1.5.2")
+}

md4k/src/androidTest/kotlin/com/wbrawner/md4k/MarkdownParserTest.kt

@@ -0,0 +1,28 @@
+package com.wbrawner.md4k
+
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.Parameterized
+import org.junit.runners.Parameterized.Parameters
+
+@RunWith(Parameterized::class)
+class MarkdownParserTest(private val markdown: String, private val html: String) {
+
+    @Test
+    fun testMarkdownToHtmlConversion() {
+        val parsedHtml = markdown.toHtml()
+        assert(parsedHtml == html) {
+            """expected "$html", got "$parsedHtml""""
+        }
+    }
+
+    companion object {
+        @JvmStatic
+        @Parameters(name = "Markdown: {0}")
+        fun data(): Array<Array<String>> = arrayOf(
+                arrayOf("# Test", "<h1>Test</h1>\n"),
+                arrayOf("- [ ] Check this", "<ul>\n<li class=\"task-list-item\"><input type=\"checkbox\" class=\"task-list-item-checkbox\" disabled>Check this</li>\n</ul>\n"),
+                arrayOf("- [x] Checked!", "<ul>\n<li class=\"task-list-item\"><input type=\"checkbox\" class=\"task-list-item-checkbox\" disabled checked>Checked!</li>\n</ul>\n"),
+        )
+    }
+}