From 9e03e13ae7d51909ef885a6494b229a967d7c60c Mon Sep 17 00:00:00 2001
From: Henry Lee <lee0906@hotmail.com>
Date: Mon, 21 Sep 2020 17:39:58 +1000
Subject: [PATCH] Add more test cases for the string view (#119)

---
 test/string_view_test.cc | 48 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/test/string_view_test.cc b/test/string_view_test.cc
index abfcc2c..0b6c7c2 100644
--- a/test/string_view_test.cc
+++ b/test/string_view_test.cc
@@ -38,6 +38,8 @@ TEST(StringViewTest, Build) {
 TEST(StringViewTest, CpuFeatures_StringView_IndexOfChar) {
   // Found.
   EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'e'), 1);
+  EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 't'), 0);
+  EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("beef"), 'e'), 1);
   // Not found.
   EXPECT_EQ(CpuFeatures_StringView_IndexOfChar(str("test"), 'z'), -1);
   // Empty.
@@ -47,6 +49,8 @@ TEST(StringViewTest, CpuFeatures_StringView_IndexOfChar) {
 TEST(StringViewTest, CpuFeatures_StringView_IndexOf) {
   // Found.
   EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("es")), 1);
+  EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("test")), 0);
+  EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("tesstest"), str("test")), 4);
   // Not found.
   EXPECT_EQ(CpuFeatures_StringView_IndexOf(str("test"), str("aa")), -1);
   // Empty.
@@ -56,6 +60,9 @@ TEST(StringViewTest, CpuFeatures_StringView_IndexOf) {
 
 TEST(StringViewTest, CpuFeatures_StringView_StartsWith) {
   EXPECT_TRUE(CpuFeatures_StringView_StartsWith(str("test"), str("te")));
+  EXPECT_TRUE(CpuFeatures_StringView_StartsWith(str("test"), str("test")));
+  EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("st")));
+  EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("est")));
   EXPECT_FALSE(CpuFeatures_StringView_StartsWith(str("test"), str("")));
   EXPECT_FALSE(
       CpuFeatures_StringView_StartsWith(str("test"), kEmptyStringView));
@@ -68,8 +75,11 @@ TEST(StringViewTest, CpuFeatures_StringView_IsEquals) {
       CpuFeatures_StringView_IsEquals(kEmptyStringView, kEmptyStringView));
   EXPECT_TRUE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("")));
   EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str(""), kEmptyStringView));
+  EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str("test"), str("test")));
   EXPECT_TRUE(CpuFeatures_StringView_IsEquals(str("a"), str("a")));
   EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), str("b")));
+  EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("aa"), str("a")));
+  EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), str("aa")));
   EXPECT_FALSE(CpuFeatures_StringView_IsEquals(str("a"), kEmptyStringView));
   EXPECT_FALSE(CpuFeatures_StringView_IsEquals(kEmptyStringView, str("a")));
 }
@@ -81,11 +91,49 @@ TEST(StringViewTest, CpuFeatures_StringView_PopFront) {
   EXPECT_EQ(CpuFeatures_StringView_PopFront(str("test"), 100), str(""));
 }
 
+TEST(StringViewTest, CpuFeatures_StringView_PopBack) {
+  EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 2), str("te"));
+  EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 0), str("test"));
+  EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 4), str(""));
+  EXPECT_EQ(CpuFeatures_StringView_PopBack(str("test"), 100), str(""));
+}
+
+TEST(StringViewTest, CpuFeatures_StringView_KeepFront) {
+  EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 2), str("te"));
+  EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 0), str(""));
+  EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 4), str("test"));
+  EXPECT_EQ(CpuFeatures_StringView_KeepFront(str("test"), 6), str("test"));
+}
+
+TEST(StringViewTest, CpuFeatures_StringView_Front) {
+  EXPECT_EQ(CpuFeatures_StringView_Front(str("apple")), 'a');
+  EXPECT_EQ(CpuFeatures_StringView_Front(str("a")), 'a');
+}
+
+TEST(StringViewTest, CpuFeatures_StringView_Back) {
+  EXPECT_EQ(CpuFeatures_StringView_Back(str("apple")), 'e');
+  EXPECT_EQ(CpuFeatures_StringView_Back(str("a")), 'a');
+}
+
+TEST(StringViewTest, CpuFeatures_StringView_TrimWhitespace) {
+  EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("  first middle last  ")),
+                                                  str("first middle last"));
+  EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("first middle last  ")),
+                                                  str("first middle last"));
+  EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("  first middle last")),
+                                                  str("first middle last"));
+  EXPECT_EQ(CpuFeatures_StringView_TrimWhitespace(str("first middle last")),
+                                                  str("first middle last"));
+}
+
 TEST(StringViewTest, CpuFeatures_StringView_ParsePositiveNumber) {
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("42")), 42);
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2a")), 42);
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2A")), 42);
+  EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2A2a")), 10794);
+  EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("0x2a2A")), 10794);
 
+  EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("-10")), -1);
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("-0x2A")), -1);
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("abc")), -1);
   EXPECT_EQ(CpuFeatures_StringView_ParsePositiveNumber(str("")), -1);