New class SparseState for storing lexer state that may not

change on most lines.

1 files changed, 138 insertions, 0 deletions

diff --git a/test/unit/testSparseState.cxx b/test/unit/testSparseState.cxx
new file mode 100644
index 000000000..f16f829d4
--- /dev/null
+++ b/test/unit/testSparseState.cxx
@@ -0,0 +1,138 @@
+// Unit Tests for Scintilla internal data structures
+
+#include <string>
+#include <vector>
+#include <algorithm>
+
+#include "Platform.h"
+
+#include "SparseState.h"
+
+#include <gtest/gtest.h>
+
+// Test SparseState.
+
+class SparseStateTest : public ::testing::Test {
+protected:
+	virtual void SetUp() {
+		pss = new SparseState<int>();
+	}
+
+	virtual void TearDown() {
+		delete pss;
+		pss = 0;
+	}
+
+	SparseState<int> *pss;
+};
+
+TEST_F(SparseStateTest, IsEmptyInitially) {
+	EXPECT_EQ(0u, pss->size());
+	int val = pss->ValueAt(0);
+	EXPECT_EQ(0, val);
+}
+
+TEST_F(SparseStateTest, SimpleSetAndGet) {
+	pss->Set(0, 22);
+	pss->Set(1, 23);
+	EXPECT_EQ(2u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(22, pss->ValueAt(0));
+	EXPECT_EQ(23, pss->ValueAt(1));
+	EXPECT_EQ(23, pss->ValueAt(2));
+}
+
+TEST_F(SparseStateTest, RetrieveBetween) {
+	pss->Set(0, 10);
+	pss->Set(2, 12);
+	EXPECT_EQ(2u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(10, pss->ValueAt(0));
+	EXPECT_EQ(10, pss->ValueAt(1));
+	EXPECT_EQ(12, pss->ValueAt(2));
+}
+
+TEST_F(SparseStateTest, RetrieveBefore) {
+	pss->Set(2, 12);
+	EXPECT_EQ(1u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(0, pss->ValueAt(0));
+	EXPECT_EQ(0, pss->ValueAt(1));
+	EXPECT_EQ(12, pss->ValueAt(2));
+}
+
+TEST_F(SparseStateTest, Delete) {
+	pss->Set(0, 30);
+	pss->Set(2, 32);
+	pss->Delete(2);
+	EXPECT_EQ(1u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(30, pss->ValueAt(0));
+	EXPECT_EQ(30, pss->ValueAt(1));
+	EXPECT_EQ(30, pss->ValueAt(2));
+}
+
+TEST_F(SparseStateTest, DeleteBetweeen) {
+	pss->Set(0, 30);
+	pss->Set(2, 32);
+	pss->Delete(1);
+	EXPECT_EQ(1u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(30, pss->ValueAt(0));
+	EXPECT_EQ(30, pss->ValueAt(1));
+	EXPECT_EQ(30, pss->ValueAt(2));
+}
+
+TEST_F(SparseStateTest, ReplaceLast) {
+	pss->Set(0, 30);
+	pss->Set(2, 31);
+	pss->Set(2, 32);
+	EXPECT_EQ(2u, pss->size());
+	EXPECT_EQ(0, pss->ValueAt(-1));
+	EXPECT_EQ(30, pss->ValueAt(0));
+	EXPECT_EQ(30, pss->ValueAt(1));
+	EXPECT_EQ(32, pss->ValueAt(2));
+	EXPECT_EQ(32, pss->ValueAt(3));
+}
+
+class SparseStateStringTest : public ::testing::Test {
+protected:
+	virtual void SetUp() {
+		pss = new SparseState<std::string>();
+	}
+
+	virtual void TearDown() {
+		delete pss;
+		pss = 0;
+	}
+
+	SparseState<std::string> *pss;
+};
+
+TEST_F(SparseStateStringTest, IsEmptyInitially) {
+	EXPECT_EQ(0u, pss->size());
+	std::string val = pss->ValueAt(0);
+	EXPECT_EQ("", val);
+}
+
+TEST_F(SparseStateStringTest, SimpleSetAndGet) {
+	EXPECT_EQ(0u, pss->size());
+	pss->Set(0, "22");
+	pss->Set(1, "23");
+	EXPECT_EQ(2u, pss->size());
+	EXPECT_EQ("", pss->ValueAt(-1));
+	EXPECT_EQ("22", pss->ValueAt(0));
+	EXPECT_EQ("23", pss->ValueAt(1));
+	EXPECT_EQ("23", pss->ValueAt(2));
+}
+
+TEST_F(SparseStateStringTest, DeleteBetweeen) {
+	pss->Set(0, "30");
+	pss->Set(2, "32");
+	pss->Delete(1);
+	EXPECT_EQ(1u, pss->size());
+	EXPECT_EQ("", pss->ValueAt(-1));
+	EXPECT_EQ("30", pss->ValueAt(0));
+	EXPECT_EQ("30", pss->ValueAt(1));
+	EXPECT_EQ("30", pss->ValueAt(2));
+}