Add hooks in JNI to start using native path parsing

Change-Id: Iaa0d3c2c1936c248146ed7f186a13e8e79be818e

diff --git a/core/java/android/util/PathParser.java b/core/java/android/util/PathParser.java
index cebb8f0..f099479 100644 (file)
--- a/core/java/android/util/PathParser.java
+++ b/core/java/android/util/PathParser.java
@@ -27,21 +27,21 @@ public class PathParser {
     static final String LOGTAG = PathParser.class.getSimpleName();
 
     /**
-     * @param pathData The string representing a path, the same as "d" string in svg file.
+     * @param pathString The string representing a path, the same as "d" string in svg file.
      * @return the generated Path object.
      */
-    public static Path createPathFromPathData(String pathData) {
+    public static Path createPathFromPathData(String pathString) {
+        if (pathString == null) {
+            throw new IllegalArgumentException("Path string can not be null.");
+        }
         Path path = new Path();
-        PathDataNode[] nodes = createNodesFromPathData(pathData);
-        if (nodes != null) {
-            try {
-                PathDataNode.nodesToPath(nodes, path);
-            } catch (RuntimeException e) {
-                throw new RuntimeException("Error in parsing " + pathData, e);
-            }
-            return path;
+        boolean hasValidPathData = nParseStringForPath(path.mNativePath, pathString,
+                pathString.length());
+        if (!hasValidPathData) {
+            throw new IllegalArgumentException("Path string: " + pathString +
+                    " does not contain valid path data");
         }
-        return null;
+        return path;
     }
 
     /**
@@ -701,4 +701,7 @@ public class PathParser {
             }
         }
     }
+
+    private static native boolean nParseStringForPath(long pathPtr, String pathString,
+            int stringLength);
 }

diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index ecee2b2..4d648ce 100644 (file)
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -89,6 +89,7 @@ LOCAL_SRC_FILES:= \
     android_util_Binder.cpp \
     android_util_EventLog.cpp \
     android_util_Log.cpp \
+    android_util_PathParser.cpp \
     android_util_Process.cpp \
     android_util_StringBlock.cpp \
     android_util_XmlBlock.cpp \

diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 4e93730..815d330 100644 (file)
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -110,6 +110,7 @@ namespace android {
 extern int register_android_content_AssetManager(JNIEnv* env);
 extern int register_android_util_EventLog(JNIEnv* env);
 extern int register_android_util_Log(JNIEnv* env);
+extern int register_android_util_PathParser(JNIEnv* env);
 extern int register_android_content_StringBlock(JNIEnv* env);
 extern int register_android_content_XmlBlock(JNIEnv* env);
 extern int register_android_graphics_Canvas(JNIEnv* env);
@@ -1300,6 +1301,7 @@ static const RegJNIRec gRegJNI[] = {
     REG_JNI(register_android_os_SystemClock),
     REG_JNI(register_android_util_EventLog),
     REG_JNI(register_android_util_Log),
+    REG_JNI(register_android_util_PathParser),
     REG_JNI(register_android_content_AssetManager),
     REG_JNI(register_android_content_StringBlock),
     REG_JNI(register_android_content_XmlBlock),

diff --git a/core/jni/android_util_PathParser.cpp b/core/jni/android_util_PathParser.cpp
new file mode 100644 (file)
index 0000000..bf6ffc5
--- /dev/null
+++ b/core/jni/android_util_PathParser.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "jni.h"
+
+#include <PathParser.h>
+#include <SkPath.h>
+
+#include "core_jni_helpers.h"
+
+namespace android {
+
+static bool parseStringForPath(JNIEnv* env, jobject, jlong skPathHandle, jstring inputPathStr,
+        jint strLength) {
+    const char* pathString = env->GetStringUTFChars(inputPathStr, NULL);
+    SkPath* skPath = reinterpret_cast<SkPath*>(skPathHandle);
+    bool hasValidData = android::uirenderer::PathParser::parseStringForSkPath(skPath, pathString,
+            strLength);
+    env->ReleaseStringUTFChars(inputPathStr, pathString);
+    return hasValidData;
+}
+
+static const JNINativeMethod gMethods[] = {
+    {"nParseStringForPath", "(JLjava/lang/String;I)Z", (void*)parseStringForPath}
+};
+
+int register_android_util_PathParser(JNIEnv* env) {
+    return RegisterMethodsOrDie(env, "android/util/PathParser", gMethods, NELEM(gMethods));
+}
+};

diff --git a/libs/hwui/PathParser.cpp b/libs/hwui/PathParser.cpp
index e8ed8a1..61b9d21 100644 (file)
--- a/libs/hwui/PathParser.cpp
+++ b/libs/hwui/PathParser.cpp
@@ -183,10 +183,16 @@ void PathParser::dump(const PathData& data) {
     ALOGD("points are : %s", os.str().c_str());
 }
 
-void PathParser::parseStringForSkPath(SkPath* skPath, const char* pathStr, size_t strLen) {
+bool PathParser::parseStringForSkPath(SkPath* skPath, const char* pathStr, size_t strLen) {
     PathData pathData;
     getPathDataFromString(&pathData, pathStr, strLen);
+
+    // Check if there is valid data coming out of parsing the string.
+    if (pathData.verbs.size() == 0) {
+        return false;
+    }
     VectorDrawablePath::verbsToPath(skPath, &pathData);
+    return true;
 }
 
 }; // namespace uirenderer

diff --git a/libs/hwui/PathParser.h b/libs/hwui/PathParser.h
index 6dc7ee1..d30bb0f 100644 (file)
--- a/libs/hwui/PathParser.h
+++ b/libs/hwui/PathParser.h
@@ -21,13 +21,18 @@
 
 #include <jni.h>
 #include <android/log.h>
+#include <cutils/compiler.h>
 
 namespace android {
 namespace uirenderer {
 
 class PathParser {
 public:
-    static void parseStringForSkPath(SkPath* outPath, const char* pathStr, size_t strLength);
+    /**
+     * Parse the string literal and create a Skia Path. Return true on success.
+     */
+    ANDROID_API static bool parseStringForSkPath(SkPath* outPath, const char* pathStr,
+            size_t strLength);
     static void getPathDataFromString(PathData* outData, const char* pathStr, size_t strLength);
     static void dump(const PathData& data);
 };

diff --git a/libs/hwui/unit_tests/PathParserTests.cpp b/libs/hwui/unit_tests/PathParserTests.cpp
index 244bd6c..ef263a1 100644 (file)
--- a/libs/hwui/unit_tests/PathParserTests.cpp
+++ b/libs/hwui/unit_tests/PathParserTests.cpp
@@ -30,142 +30,179 @@ struct TestData {
     const std::function<void(SkPath*)> skPathLamda;
 };
 
-static TestData testData1 {
-    // Path
-    "M2.000000,22.000000l20.000000,0.000000 1e0-2e3z",
+const static std::vector<TestData> testDataSet = {
+    // TestData with scientific notation -2e3 etc.
     {
-        // Verbs
-        {'M', 'l', 'z'},
-        // Verb sizes
-        {2, 4, 0},
-        // Points
-        {2, 22, 20, 0,  1, -2000},
+        // Path
+        "M2.000000,22.000000l20.000000,0.000000 1e0-2e3z",
+        {
+            // Verbs
+            {'M', 'l', 'z'},
+            // Verb sizes
+            {2, 4, 0},
+            // Points
+            {2, 22, 20, 0,  1, -2000},
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(2, 22);
+            outPath->rLineTo(20, 0);
+            outPath->rLineTo(1, -2000);
+            outPath->close();
+            outPath->moveTo(2, 22);
+        }
     },
-    [](SkPath* outPath) {
-        outPath->moveTo(2, 22);
-        outPath->rLineTo(20, 0);
-        outPath->rLineTo(1, -2000);
-        outPath->close();
-        outPath->moveTo(2, 22);
-    }
-};
 
-static TestData testData2 {
-    // Path
-    "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10",
+    // Comprehensive data, containing all the verbs possible.
     {
-        // Verbs
-        {'M', 'm', 'l', 'L', 'H', 'h', 'V', 'v', 'Q', 'q', 't', 'T', 'C', 'c', 'S', 's', 'A', 'a'},
-        // VerbSizes
-        {2, 2, 2, 2, 1, 1, 1, 1, 4, 4, 2, 2, 6, 6, 4, 4, 7, 7},
-        // Points
-        {1.0, 1.0, 2.0, 2.0, 3.0, 3.0, 3.0, 3.0, 4.0, 4.0, 5.0, 5.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 7.0, 7.0, 7.0, 7.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, }
+        // Path
+        "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10",
+        {
+            // Verbs
+            {'M', 'm', 'l', 'L', 'H', 'h', 'V', 'v', 'Q', 'q', 't', 'T', 'C', 'c', 'S', 's', 'A', 'a'},
+            // VerbSizes
+            {2, 2, 2, 2, 1, 1, 1, 1, 4, 4, 2, 2, 6, 6, 4, 4, 7, 7},
+            // Points
+            {1.0, 1.0, 2.0, 2.0, 3.0, 3.0, 3.0, 3.0, 4.0, 4.0, 5.0, 5.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 7.0, 7.0, 7.0, 7.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, }
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(1.0, 1.0);
+            outPath->rMoveTo(2.0, 2.0);
+            outPath->rLineTo(3.0, 3.0);
+            outPath->lineTo(3.0, 3.0);
+            outPath->lineTo(4.0, 3.0);
+            outPath->rLineTo(4.0, 0);
+            outPath->lineTo(8.0, 5.0);
+            outPath->rLineTo(0, 5.0);
+            outPath->quadTo(6.0, 6.0, 6.0, 6.0);
+            outPath->rQuadTo(6.0, 6.0, 6.0, 6.0);
+            outPath->rQuadTo(0.0, 0.0, 7.0, 7.0);
+            outPath->quadTo(26.0, 26.0, 7.0, 7.0);
+            outPath->cubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
+            outPath->rCubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
+            outPath->cubicTo(16.0, 16.0, 9.0, 9.0, 9.0, 9.0);
+            outPath->rCubicTo(0.0, 0.0, 9.0, 9.0, 9.0, 9.0);
+            outPath->cubicTo(18.447775037328352, 20.404243860300607, 17.998389141249767, 22.8911717921705, 16.737515350332117, 24.986664170401575);
+            outPath->cubicTo(15.476641559414468, 27.08215654863265, 13.489843598291483, 28.644011882390082, 11.155893964798905, 29.37447073281729);
+            outPath->cubicTo(8.821944331306327, 30.1049295832445, 6.299226382436471, 29.954422532383525, 4.0686829203897235, 28.951642951534332);
+            outPath->cubicTo(1.838139458342976, 27.94886337068514, 0.05113662931485696, 26.161860541657013, -0.9516429515343354, 23.931317079610267);
+            outPath->cubicTo(-1.9544225323835278, 21.70077361756352, -2.1049295832444987, 19.178055668693663, -1.37447073281729, 16.844106035201087);
+            outPath->cubicTo(-0.6440118823900814, 14.51015640170851, 0.9178434513673546, 12.523358440585524, 3.0133358295984305, 11.262484649667876);
+            outPath->cubicTo(5.108828207829506, 10.001610858750228, 7.5957561396993984, 9.552224962671648, 10.000000000000005, 10.0);
+            outPath->cubicTo(10.0, 7.348852265086975, 11.054287646850167, 4.803576729418881, 12.928932188134523, 2.9289321881345254);
+            outPath->cubicTo(14.803576729418879, 1.0542876468501696, 17.348852265086972, 4.870079381441987E-16, 19.999999999999996, 0.0);
+            outPath->cubicTo(22.65114773491302, -4.870079381441987E-16, 25.19642327058112, 1.0542876468501678, 27.071067811865476, 2.9289321881345227);
+            outPath->cubicTo(28.94571235314983, 4.803576729418878, 30.0, 7.348852265086974, 30.0, 9.999999999999998);
+            outPath->cubicTo(30.0, 12.651147734913023, 28.94571235314983, 15.19642327058112, 27.071067811865476, 17.071067811865476);
+            outPath->cubicTo(25.19642327058112, 18.94571235314983, 22.651147734913028, 20.0, 20.000000000000004, 20.0);
+        }
     },
-    [](SkPath* outPath) {
-        outPath->moveTo(1.0, 1.0);
-        outPath->rMoveTo(2.0, 2.0);
-        outPath->rLineTo(3.0, 3.0);
-        outPath->lineTo(3.0, 3.0);
-        outPath->lineTo(4.0, 3.0);
-        outPath->rLineTo(4.0, 0);
-        outPath->lineTo(8.0, 5.0);
-        outPath->rLineTo(0, 5.0);
-        outPath->quadTo(6.0, 6.0, 6.0, 6.0);
-        outPath->rQuadTo(6.0, 6.0, 6.0, 6.0);
-        outPath->rQuadTo(0.0, 0.0, 7.0, 7.0);
-        outPath->quadTo(26.0, 26.0, 7.0, 7.0);
-        outPath->cubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
-        outPath->rCubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
-        outPath->cubicTo(16.0, 16.0, 9.0, 9.0, 9.0, 9.0);
-        outPath->rCubicTo(0.0, 0.0, 9.0, 9.0, 9.0, 9.0);
-        outPath->cubicTo(18.447775037328352, 20.404243860300607, 17.998389141249767, 22.8911717921705, 16.737515350332117, 24.986664170401575);
-        outPath->cubicTo(15.476641559414468, 27.08215654863265, 13.489843598291483, 28.644011882390082, 11.155893964798905, 29.37447073281729);
-        outPath->cubicTo(8.821944331306327, 30.1049295832445, 6.299226382436471, 29.954422532383525, 4.0686829203897235, 28.951642951534332);
-        outPath->cubicTo(1.838139458342976, 27.94886337068514, 0.05113662931485696, 26.161860541657013, -0.9516429515343354, 23.931317079610267);
-        outPath->cubicTo(-1.9544225323835278, 21.70077361756352, -2.1049295832444987, 19.178055668693663, -1.37447073281729, 16.844106035201087);
-        outPath->cubicTo(-0.6440118823900814, 14.51015640170851, 0.9178434513673546, 12.523358440585524, 3.0133358295984305, 11.262484649667876);
-        outPath->cubicTo(5.108828207829506, 10.001610858750228, 7.5957561396993984, 9.552224962671648, 10.000000000000005, 10.0);
-        outPath->cubicTo(10.0, 7.348852265086975, 11.054287646850167, 4.803576729418881, 12.928932188134523, 2.9289321881345254);
-        outPath->cubicTo(14.803576729418879, 1.0542876468501696, 17.348852265086972, 4.870079381441987E-16, 19.999999999999996, 0.0);
-        outPath->cubicTo(22.65114773491302, -4.870079381441987E-16, 25.19642327058112, 1.0542876468501678, 27.071067811865476, 2.9289321881345227);
-        outPath->cubicTo(28.94571235314983, 4.803576729418878, 30.0, 7.348852265086974, 30.0, 9.999999999999998);
-        outPath->cubicTo(30.0, 12.651147734913023, 28.94571235314983, 15.19642327058112, 27.071067811865476, 17.071067811865476);
-        outPath->cubicTo(25.19642327058112, 18.94571235314983, 22.651147734913028, 20.0, 20.000000000000004, 20.0);
-    }
-};
 
-static TestData testData3 {
-    // Path
-    "M5.3,13.2c-0.1,0.0 -0.3,0.0 -0.4,-0.1c-0.3,-0.2 -0.4,-0.7 -0.2,-1.0c1.3,-1.9 2.9,-3.4 4.9,-4.5c4.1,-2.2 9.3,-2.2 13.4,0.0c1.9,1.1 3.6,2.5 4.9,4.4c0.2,0.3 0.1,0.8 -0.2,1.0c-0.3,0.2 -0.8,0.1 -1.0,-0.2c-1.2,-1.7 -2.6,-3.0 -4.3,-4.0c-3.7,-2.0 -8.3,-2.0 -12.0,0.0c-1.7,0.9 -3.2,2.3 -4.3,4.0C5.7,13.1 5.5,13.2 5.3,13.2z",
+    // Random long data
     {
-        // Verbs
-        {'M', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'C', 'z'},
-        // Verb sizes
-        {2, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 0},
-        // Points
-        {5.3, 13.2, -0.1, 0, -0.3, 0, -0.4, -0.1, -0.3, -0.2, -0.4, -0.7, -0.2, -1, 1.3, -1.9, 2.9, -3.4, 4.9, -4.5, 4.1, -2.2, 9.3, -2.2, 13.4, 0, 1.9, 1.1, 3.6, 2.5, 4.9, 4.4, 0.2, 0.3, 0.1, 0.8, -0.2, 1, -0.3, 0.2, -0.8, 0.1, -1, -0.2, -1.2, -1.7, -2.6, -3, -4.3, -4, -3.7, -2, -8.3, -2, -12, 0, -1.7, 0.9, -3.2, 2.3, -4.3, 4, 5.7, 13.1, 5.5, 13.2, 5.3, 13.2},
+        // Path
+        "M5.3,13.2c-0.1,0.0 -0.3,0.0 -0.4,-0.1c-0.3,-0.2 -0.4,-0.7 -0.2,-1.0c1.3,-1.9 2.9,-3.4 4.9,-4.5c4.1,-2.2 9.3,-2.2 13.4,0.0c1.9,1.1 3.6,2.5 4.9,4.4c0.2,0.3 0.1,0.8 -0.2,1.0c-0.3,0.2 -0.8,0.1 -1.0,-0.2c-1.2,-1.7 -2.6,-3.0 -4.3,-4.0c-3.7,-2.0 -8.3,-2.0 -12.0,0.0c-1.7,0.9 -3.2,2.3 -4.3,4.0C5.7,13.1 5.5,13.2 5.3,13.2z",
+        {
+            // Verbs
+            {'M', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'C', 'z'},
+            // Verb sizes
+            {2, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 0},
+            // Points
+            {5.3, 13.2, -0.1, 0, -0.3, 0, -0.4, -0.1, -0.3, -0.2, -0.4, -0.7, -0.2, -1, 1.3, -1.9, 2.9, -3.4, 4.9, -4.5, 4.1, -2.2, 9.3, -2.2, 13.4, 0, 1.9, 1.1, 3.6, 2.5, 4.9, 4.4, 0.2, 0.3, 0.1, 0.8, -0.2, 1, -0.3, 0.2, -0.8, 0.1, -1, -0.2, -1.2, -1.7, -2.6, -3, -4.3, -4, -3.7, -2, -8.3, -2, -12, 0, -1.7, 0.9, -3.2, 2.3, -4.3, 4, 5.7, 13.1, 5.5, 13.2, 5.3, 13.2},
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(5.3, 13.2);
+            outPath->rCubicTo(-0.1, 0.0, -0.3, 0.0, -0.4, -0.1);
+            outPath->rCubicTo(-0.3, -0.2, -0.4, -0.7, -0.2, -1.0);
+            outPath->rCubicTo(1.3, -1.9, 2.9, -3.4, 4.9, -4.5);
+            outPath->rCubicTo(4.1, -2.2, 9.3, -2.2, 13.4, 0.0);
+            outPath->rCubicTo(1.9, 1.1, 3.6, 2.5, 4.9, 4.4);
+            outPath->rCubicTo(0.2, 0.3, 0.1, 0.8, -0.2, 1.0);
+            outPath->rCubicTo(-0.3, 0.2, -0.8, 0.1, -1.0, -0.2);
+            outPath->rCubicTo(-1.2, -1.7, -2.6, -3.0, -4.3, -4.0);
+            outPath->rCubicTo(-3.7, -2.0, -8.3, -2.0, -12.0, 0.0);
+            outPath->rCubicTo(-1.7, 0.9, -3.2, 2.3, -4.3, 4.0);
+            outPath->cubicTo(5.7, 13.1, 5.5, 13.2, 5.3, 13.2);
+            outPath->close();
+            outPath->moveTo(5.3, 13.2);
+        }
     },
-    [](SkPath* outPath) {
-        outPath->moveTo(5.3, 13.2);
-        outPath->rCubicTo(-0.1, 0.0, -0.3, 0.0, -0.4, -0.1);
-        outPath->rCubicTo(-0.3, -0.2, -0.4, -0.7, -0.2, -1.0);
-        outPath->rCubicTo(1.3, -1.9, 2.9, -3.4, 4.9, -4.5);
-        outPath->rCubicTo(4.1, -2.2, 9.3, -2.2, 13.4, 0.0);
-        outPath->rCubicTo(1.9, 1.1, 3.6, 2.5, 4.9, 4.4);
-        outPath->rCubicTo(0.2, 0.3, 0.1, 0.8, -0.2, 1.0);
-        outPath->rCubicTo(-0.3, 0.2, -0.8, 0.1, -1.0, -0.2);
-        outPath->rCubicTo(-1.2, -1.7, -2.6, -3.0, -4.3, -4.0);
-        outPath->rCubicTo(-3.7, -2.0, -8.3, -2.0, -12.0, 0.0);
-        outPath->rCubicTo(-1.7, 0.9, -3.2, 2.3, -4.3, 4.0);
-        outPath->cubicTo(5.7, 13.1, 5.5, 13.2, 5.3, 13.2);
-        outPath->close();
-        outPath->moveTo(5.3, 13.2);
-    }
-};
 
-static TestData testData4 {
-    // Path
-    "l0.0.0.5.0.0.5-0.5.0.0-.5z",
+    // Extreme case with numbers and decimal points crunched together
     {
-        // Verbs
-        {'l', 'z'},
-        // Verb sizes
-        {10, 0},
-        // Points
-        {0, 0, 0.5, 0, 0, 0.5, -0.5, 0, 0, -0.5},
+        // Path
+        "l0.0.0.5.0.0.5-0.5.0.0-.5z",
+        {
+            // Verbs
+            {'l', 'z'},
+            // Verb sizes
+            {10, 0},
+            // Points
+            {0, 0, 0.5, 0, 0, 0.5, -0.5, 0, 0, -0.5},
+        },
+        [](SkPath* outPath) {
+            outPath->rLineTo(0.0, 0.0);
+            outPath->rLineTo(0.5, 0.0);
+            outPath->rLineTo(0.0, 0.5);
+            outPath->rLineTo(-0.5, 0.0);
+            outPath->rLineTo(0.0, -0.5);
+            outPath->close();
+            outPath->moveTo(0.0, 0.0);
+        }
     },
-    [](SkPath* outPath) {
-        outPath->rLineTo(0.0, 0.0);
-        outPath->rLineTo(0.5, 0.0);
-        outPath->rLineTo(0.0, 0.5);
-        outPath->rLineTo(-0.5, 0.0);
-        outPath->rLineTo(0.0, -0.5);
-        outPath->close();
-        outPath->moveTo(0.0, 0.0);
-    }
-};
 
-const static TestData testDataSet[] = {testData1, testData2, testData3, testData4};
+    // Empty test data
+    {
+        "",
+        {
+                // Verbs
+                {},
+                {},
+                {},
+        },
+        [](SkPath* outPath) {}
+    }
 
-TEST(PathPaser, parseString) {
+};
 
-    for (int i = 0; i < 4; i++) {
+TEST(PathParser, parseStringForData) {
+    for (TestData testData: testDataSet) {
         // Test generated path data against the given data.
         PathData pathData;
-        TestData testData = testDataSet[i];
         size_t length = strlen(testData.pathString);
         PathParser::getPathDataFromString(&pathData, testData.pathString, length);
         PathParser::dump(pathData);
         EXPECT_EQ(testData.pathData, pathData);
+    }
+
+}
 
-        // Test SkPath generated
+TEST(PathParser, createSkPathFromPathData) {
+    for (TestData testData: testDataSet) {
         SkPath expectedPath;
         testData.skPathLamda(&expectedPath);
         SkPath actualPath;
-        VectorDrawablePath::verbsToPath(&actualPath, &pathData);
+        VectorDrawablePath::verbsToPath(&actualPath, &testData.pathData);
         EXPECT_EQ(expectedPath, actualPath);
     }
+}
 
+TEST(PathParser, parseStringForSkPath) {
+    for (TestData testData: testDataSet) {
+        size_t length = strlen(testData.pathString);
+        // Check the return value as well as the SkPath generated.
+        SkPath actualPath;
+        bool hasValidData = PathParser::parseStringForSkPath(&actualPath, testData.pathString,
+                length);
+        EXPECT_EQ(hasValidData, testData.pathData.verbs.size() > 0);
+        SkPath expectedPath;
+        testData.skPathLamda(&expectedPath);
+        EXPECT_EQ(expectedPath, actualPath);
+    }
+    SkPath path;
+    EXPECT_FALSE(PathParser::parseStringForSkPath(&path, "l", 1));
+    EXPECT_FALSE(PathParser::parseStringForSkPath(&path, "1 1", 3));
+    EXPECT_FALSE(PathParser::parseStringForSkPath(&path, "LMFAO", 5));
+    EXPECT_TRUE(PathParser::parseStringForSkPath(&path, "m1 1", 4));
 }
 
 }; // namespace uirenderer