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-rw-r--r--xfa/fde/cfde_texteditengine_unittest.cpp418
1 files changed, 418 insertions, 0 deletions
diff --git a/xfa/fde/cfde_texteditengine_unittest.cpp b/xfa/fde/cfde_texteditengine_unittest.cpp
new file mode 100644
index 0000000000..da11e46daa
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+++ b/xfa/fde/cfde_texteditengine_unittest.cpp
@@ -0,0 +1,418 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "xfa/fde/cfde_texteditengine.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/test_support.h"
+#include "third_party/base/ptr_util.h"
+
+class CFDE_TextEditEngineTest : public testing::Test {
+ public:
+ class Delegate : public CFDE_TextEditEngine::Delegate {
+ public:
+ void Reset() {
+ text_is_full = false;
+ fail_validation = false;
+ }
+
+ void NotifyTextFull() override { text_is_full = true; }
+
+ void OnCaretChanged() override {}
+ void OnTextChanged(const CFX_WideString& prevText) override {}
+ void OnSelChanged() override {}
+ bool OnValidate(const CFX_WideString& wsText) override {
+ return !fail_validation;
+ }
+ void SetScrollOffset(float fScrollOffset) override {}
+
+ bool fail_validation = false;
+ bool text_is_full = false;
+ };
+
+ CFDE_TextEditEngineTest() {}
+ ~CFDE_TextEditEngineTest() override {}
+
+ void SetUp() override {
+ font_ =
+ CFGAS_GEFont::LoadFont(L"Arial Black", 0, 0, GetGlobalFontManager());
+ ASSERT(font_.Get() != nullptr);
+
+ engine_ = pdfium::MakeUnique<CFDE_TextEditEngine>();
+ engine_->SetFont(font_);
+ engine_->SetFontSize(12.0f);
+ }
+
+ void TearDown() override { engine_.reset(); }
+
+ CFDE_TextEditEngine* engine() const { return engine_.get(); }
+
+ private:
+ CFX_RetainPtr<CFGAS_GEFont> font_;
+ std::unique_ptr<CFDE_TextEditEngine> engine_;
+};
+
+TEST_F(CFDE_TextEditEngineTest, Insert) {
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+
+ engine()->Insert(0, L"");
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+ EXPECT_EQ(0U, engine()->GetLength());
+
+ engine()->Insert(0, L"Hello");
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+ EXPECT_EQ(5U, engine()->GetLength());
+
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ EXPECT_EQ(11U, engine()->GetLength());
+
+ engine()->Insert(5, L" New");
+ EXPECT_STREQ(L"Hello New World", engine()->GetText().c_str());
+
+ engine()->Insert(100, L" Cat");
+ EXPECT_STREQ(L"Hello New World Cat", engine()->GetText().c_str());
+
+ engine()->Clear();
+
+ engine()->SetHasCharacterLimit(true);
+ engine()->SetCharacterLimit(5);
+ engine()->Insert(0, L"Hello");
+
+ // No delegate
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+
+ engine()->SetCharacterLimit(8);
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello Wo", engine()->GetText().c_str());
+
+ engine()->Clear();
+
+ // With Delegate
+ auto delegate = pdfium::MakeUnique<CFDE_TextEditEngineTest::Delegate>();
+ engine()->SetDelegate(delegate.get());
+
+ engine()->SetCharacterLimit(5);
+ engine()->Insert(0, L"Hello");
+
+ // Insert when full.
+ engine()->Insert(5, L" World");
+ EXPECT_TRUE(delegate->text_is_full);
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+ delegate->Reset();
+
+ engine()->SetCharacterLimit(8);
+ engine()->Insert(5, L" World");
+ EXPECT_TRUE(delegate->text_is_full);
+ EXPECT_STREQ(L"Hello Wo", engine()->GetText().c_str());
+ delegate->Reset();
+ engine()->SetHasCharacterLimit(false);
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello");
+
+ // Insert Invalid text
+ delegate->fail_validation = true;
+ engine()->EnableValidation(true);
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+
+ delegate->fail_validation = false;
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ engine()->EnableValidation(false);
+
+ engine()->Clear();
+
+ engine()->Insert(0, L"Hello\nWorld");
+ EXPECT_FALSE(delegate->text_is_full);
+ EXPECT_STREQ(L"Hello\nWorld", engine()->GetText().c_str());
+ delegate->Reset();
+ engine()->Clear();
+
+ // Insert with limited area and over-fill
+ engine()->LimitHorizontalScroll(true);
+ engine()->SetAvailableWidth(60.0f); // Fits 'Hello Wo'.
+ engine()->Insert(0, L"Hello");
+ EXPECT_FALSE(delegate->text_is_full);
+ engine()->Insert(5, L" World");
+ EXPECT_TRUE(delegate->text_is_full);
+ EXPECT_STREQ(L"Hello Wo", engine()->GetText().c_str());
+ engine()->LimitHorizontalScroll(false);
+
+ delegate->Reset();
+ engine()->Clear();
+
+ engine()->SetLineSpace(12.0f);
+ engine()->LimitVerticalScroll(true);
+ // Default is one line of text.
+ engine()->Insert(0, L"Hello");
+ EXPECT_FALSE(delegate->text_is_full);
+ engine()->Insert(5, L" Wo\nrld");
+ EXPECT_TRUE(delegate->text_is_full);
+ EXPECT_STREQ(L"Hello Wo\n", engine()->GetText().c_str());
+ engine()->LimitVerticalScroll(false);
+
+ engine()->SetDelegate(nullptr);
+}
+
+TEST_F(CFDE_TextEditEngineTest, Delete) {
+ EXPECT_STREQ(L"", engine()->Delete(0, 50).c_str());
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+
+ engine()->Insert(0, L"Hello World");
+ EXPECT_STREQ(L" World", engine()->Delete(5, 6).c_str());
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello World");
+ EXPECT_STREQ(L" ", engine()->Delete(5, 1).c_str());
+ EXPECT_STREQ(L"HelloWorld", engine()->GetText().c_str());
+
+ EXPECT_STREQ(L"elloWorld", engine()->Delete(1, 50).c_str());
+ EXPECT_STREQ(L"H", engine()->GetText().c_str());
+}
+
+TEST_F(CFDE_TextEditEngineTest, Clear) {
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+
+ engine()->Clear();
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+
+ engine()->Insert(0, L"Hello World");
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+
+ engine()->Clear();
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+ EXPECT_EQ(0U, engine()->GetLength());
+}
+
+TEST_F(CFDE_TextEditEngineTest, GetChar) {
+ // Out of bounds.
+ EXPECT_EQ(L'\0', engine()->GetChar(0));
+
+ engine()->Insert(0, L"Hello World");
+ EXPECT_EQ(L'H', engine()->GetChar(0));
+ EXPECT_EQ(L'd', engine()->GetChar(engine()->GetLength() - 1));
+ EXPECT_EQ(L' ', engine()->GetChar(5));
+
+ engine()->Insert(5, L" A");
+ EXPECT_STREQ(L"Hello A World", engine()->GetText().c_str());
+ EXPECT_EQ(L'W', engine()->GetChar(8));
+
+ engine()->EnablePasswordMode(true);
+ EXPECT_EQ(L'*', engine()->GetChar(8));
+
+ engine()->SetAliasChar(L'+');
+ EXPECT_EQ(L'+', engine()->GetChar(8));
+}
+
+TEST_F(CFDE_TextEditEngineTest, GetWidthOfChar) {
+ // Out of Bounds.
+ EXPECT_EQ(0U, engine()->GetWidthOfChar(0));
+
+ engine()->Insert(0, L"Hello World");
+ EXPECT_EQ(199920U, engine()->GetWidthOfChar(0));
+ EXPECT_EQ(159840U, engine()->GetWidthOfChar(1));
+
+ engine()->Insert(0, L"\t");
+ EXPECT_EQ(0U, engine()->GetWidthOfChar(0));
+}
+
+TEST_F(CFDE_TextEditEngineTest, GetDisplayPos) {
+ EXPECT_EQ(0U, engine()->GetDisplayPos(FDE_TEXTEDITPIECE()).size());
+}
+
+TEST_F(CFDE_TextEditEngineTest, Selection) {
+ EXPECT_FALSE(engine()->HasSelection());
+ engine()->SelectAll();
+ EXPECT_FALSE(engine()->HasSelection());
+
+ engine()->Insert(0, L"Hello World");
+ EXPECT_STREQ(L"", engine()->DeleteSelectedText().c_str());
+
+ EXPECT_FALSE(engine()->HasSelection());
+ engine()->SelectAll();
+ EXPECT_TRUE(engine()->HasSelection());
+ EXPECT_STREQ(L"Hello World", engine()->GetSelectedText().c_str());
+
+ engine()->ClearSelection();
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ engine()->SelectAll();
+ size_t start_idx;
+ size_t end_idx;
+ std::tie(start_idx, end_idx) = engine()->GetSelection();
+ EXPECT_EQ(0U, start_idx);
+ EXPECT_EQ(10U, end_idx);
+
+ // Selection before gap.
+ EXPECT_STREQ(L"Hello World", engine()->GetSelectedText().c_str());
+ EXPECT_TRUE(engine()->HasSelection());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+
+ engine()->Insert(5, L" A");
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"", engine()->GetSelectedText().c_str());
+
+ // Selection over the gap.
+ engine()->SelectAll();
+ EXPECT_TRUE(engine()->HasSelection());
+ EXPECT_STREQ(L"Hello A World", engine()->GetSelectedText().c_str());
+ engine()->Clear();
+
+ engine()->Insert(0, L"Hello World");
+ engine()->SelectAll();
+
+ EXPECT_STREQ(L"Hello World", engine()->DeleteSelectedText().c_str());
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+
+ engine()->Insert(0, L"Hello World");
+ engine()->SetSelection(5, 9);
+ EXPECT_STREQ(L" Worl", engine()->DeleteSelectedText().c_str());
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"Hellod", engine()->GetText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello World");
+ engine()->SelectAll();
+ engine()->ReplaceSelectedText(L"Goodbye Everybody");
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"Goodbye Everybody", engine()->GetText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello World");
+ engine()->SetSelection(1, 4);
+ engine()->ReplaceSelectedText(L"i,");
+ EXPECT_FALSE(engine()->HasSelection());
+ EXPECT_STREQ(L"Hi, World", engine()->GetText().c_str());
+
+ // Selection fully after gap.
+ engine()->Clear();
+ engine()->Insert(0, L"Hello");
+ engine()->Insert(0, L"A ");
+ engine()->SetSelection(3, 6);
+ EXPECT_STREQ(L"ello", engine()->GetSelectedText().c_str());
+
+ engine()->Clear();
+ engine()->Insert(0, L"Hello World");
+ engine()->ClearSelection();
+ engine()->DeleteSelectedText();
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+}
+
+TEST_F(CFDE_TextEditEngineTest, UndoRedo) {
+ EXPECT_FALSE(engine()->CanUndo());
+ EXPECT_FALSE(engine()->CanRedo());
+ EXPECT_FALSE(engine()->Undo());
+ EXPECT_FALSE(engine()->Redo());
+
+ engine()->Insert(0, L"Hello");
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_FALSE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+ EXPECT_FALSE(engine()->CanUndo());
+ EXPECT_TRUE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_FALSE(engine()->CanRedo());
+
+ engine()->Clear();
+ EXPECT_FALSE(engine()->CanUndo());
+ EXPECT_FALSE(engine()->CanRedo());
+
+ engine()->Insert(0, L"Hello World");
+ engine()->SelectAll();
+ engine()->DeleteSelectedText();
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_STREQ(L"", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_FALSE(engine()->CanRedo());
+
+ engine()->Insert(0, L"Hello World");
+ engine()->SelectAll();
+ engine()->ReplaceSelectedText(L"Goodbye Friend");
+ EXPECT_STREQ(L"Goodbye Friend", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_STREQ(L"Goodbye Friend", engine()->GetText().c_str());
+
+ engine()->Clear();
+ engine()->SetMaxEditOperationsForTesting(3);
+ engine()->Insert(0, L"First ");
+ engine()->Insert(engine()->GetLength(), L"Second ");
+ engine()->Insert(engine()->GetLength(), L"Third");
+
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"First Second ", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->CanUndo());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_FALSE(
+ engine()->CanUndo()); // Can't undo First; undo buffer too small.
+ EXPECT_STREQ(L"First ", engine()->GetText().c_str());
+
+ EXPECT_TRUE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_TRUE(engine()->CanRedo());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_FALSE(engine()->CanRedo());
+ EXPECT_STREQ(L"First Second Third", engine()->GetText().c_str());
+
+ engine()->Clear();
+
+ engine()->SetMaxEditOperationsForTesting(4);
+
+ // Go beyond the max operations limit.
+ engine()->Insert(0, L"H");
+ engine()->Insert(1, L"e");
+ engine()->Insert(2, L"l");
+ engine()->Insert(3, L"l");
+ engine()->Insert(4, L"o");
+ engine()->Insert(5, L" World");
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+
+ // Do A, undo. Do B, undo. Redo should cause B.
+ engine()->Delete(4, 3);
+ EXPECT_STREQ(L"Hellorld", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ engine()->Delete(5, 6);
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->Redo());
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+
+ // Undo down to the limit.
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello World", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hello", engine()->GetText().c_str());
+ EXPECT_TRUE(engine()->Undo());
+ EXPECT_STREQ(L"Hell", engine()->GetText().c_str());
+ EXPECT_FALSE(engine()->Undo());
+ EXPECT_STREQ(L"Hell", engine()->GetText().c_str());
+}
+
+TEST_F(CFDE_TextEditEngineTest, GetIndexForPoint) {
+ engine()->SetFontSize(10.0f);
+ engine()->Insert(0, L"Hello World");
+ EXPECT_EQ(0U, engine()->GetIndexForPoint({0.0f, 0.0f}));
+ EXPECT_EQ(11U, engine()->GetIndexForPoint({999999.0f, 9999999.0f}));
+ EXPECT_EQ(1U, engine()->GetIndexForPoint({10.0f, 5.0f}));
+}
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