Support strikethrough

test/README

@@ -9,3 +9,8 @@ in the development cycle.
 
 More information about PlatformIO Unit Testing:
 - https://docs.platformio.org/en/latest/advanced/unit-testing/index.html
+
+Example test runners in this repository:
+- test/run_url_utils_test.sh
+- test/run_opds_parser_test.sh
+- test/run_epub_css_test.sh

test/epub_css/CssParserTest.cpp

@@ -0,0 +1,62 @@
+#include <cstdio>
+#include <string>
+
+#include "../../lib/Epub/Epub/css/CssParser.h"
+
+static int testsPassed = 0;
+static int testsFailed = 0;
+
+#define ASSERT_EQ(a, b)                                                         \
+  do {                                                                          \
+    if ((a) != (b)) {                                                           \
+      fprintf(stderr, "  FAIL: %s:%d: %s != %s\n", __FILE__, __LINE__, #a, #b); \
+      testsFailed++;                                                            \
+      return;                                                                   \
+    }                                                                           \
+  } while (0)
+
+#define ASSERT_TRUE(cond)                                                       \
+  do {                                                                         \
+    if (!(cond)) {                                                             \
+      fprintf(stderr, "  FAIL: %s:%d: %s is false\n", __FILE__, __LINE__, #cond); \
+      testsFailed++;                                                           \
+      return;                                                                  \
+    }                                                                          \
+  } while (0)
+
+#define PASS() testsPassed++
+
+void testInlineLineThrough() {
+  printf("testInlineLineThrough...\n");
+  const CssStyle style = CssParser::parseInlineStyle("text-decoration: line-through");
+  ASSERT_TRUE(style.hasTextDecoration());
+  ASSERT_EQ(style.textDecoration, CssTextDecoration::LineThrough);
+  PASS();
+}
+
+void testInlineUnderlineLineThrough() {
+  printf("testInlineUnderlineLineThrough...\n");
+  const CssStyle style = CssParser::parseInlineStyle("text-decoration: underline line-through");
+  ASSERT_TRUE(style.hasTextDecoration());
+  ASSERT_EQ(style.textDecoration, CssTextDecoration::UnderlineLineThrough);
+  PASS();
+}
+
+void testInlineTextDecorationNormalization() {
+  printf("testInlineTextDecorationNormalization...\n");
+  const CssStyle style = CssParser::parseInlineStyle("TEXT-DECORATION : LINE-THROUGH ;");
+  ASSERT_TRUE(style.hasTextDecoration());
+  ASSERT_EQ(style.textDecoration, CssTextDecoration::LineThrough);
+  PASS();
+}
+
+int main() {
+  printf("=== EPUB CSS Parser Tests ===\n\n");
+
+  testInlineLineThrough();
+  testInlineUnderlineLineThrough();
+  testInlineTextDecorationNormalization();
+
+  printf("\n=== Results: %d passed, %d failed ===\n", testsPassed, testsFailed);
+  return testsFailed > 0 ? 1 : 0;
+}

test/md_parser/MdParserTest.cpp

@@ -69,6 +69,15 @@ void testAsteriskEmphasisStillWorks() {
   PASS();
 }
 
+void testStrikethroughWorks() {
+  printf("testStrikethroughWorks...\n");
+  auto spans = MdParser::parseInline("foo ~~bar~~ baz");
+  ASSERT_EQ(flattenText(spans), "foo bar baz");
+  ASSERT_EQ(spans.size(), 3);
+  ASSERT_EQ(spans[1].style, EpdFontFamily::STRIKETHROUGH);
+  PASS();
+}
+
 void testUnderscoreBoldWorks() {
   printf("testUnderscoreBoldWorks...\n");
   auto spans = MdParser::parseInline("foo __bar__ baz");
@@ -105,6 +114,7 @@ int main() {
   testUnderscoreWithinExpressionRemainsLiteral();
   testUnderscoreEmphasisStillWorks();
   testAsteriskEmphasisStillWorks();
+  testStrikethroughWorks();
   testUnderscoreBoldWorks();
   testNestedUnorderedListIndentLevel();
   testNestedOrderedListIndentLevel();

test/run_epub_css_test.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+BUILD_DIR="$ROOT_DIR/build/epub_css"
+BINARY="$BUILD_DIR/CssParserTest"
+PLATFORMIO_DIR="${PLATFORMIO_CORE_DIR:-$HOME/.platformio}"
+ARDUINO_FRAMEWORK_DIR="$PLATFORMIO_DIR/packages/framework-arduinoespressif32"
+
+mkdir -p "$BUILD_DIR"
+
+SOURCES=(
+  "$ROOT_DIR/test/epub_css/CssParserTest.cpp"
+  "$ROOT_DIR/lib/Epub/Epub/css/CssParser.cpp"
+  "$ROOT_DIR/lib/hal/HalStorage.cpp"
+  "$ROOT_DIR/lib/Logging/Logging.cpp"
+)
+
+CXXFLAGS=(
+  -std=c++20
+  -O2
+  -Wall
+  -Wextra
+  -pedantic
+  -fno-exceptions
+  -DARDUINO_USB_MODE=1
+  -DARDUINO_USB_CDC_ON_BOOT=1
+  -DDESTRUCTOR_CLOSES_FILE=1
+  -I"$ROOT_DIR/test/shims"
+  -I"$ROOT_DIR"
+  -I"$ROOT_DIR/lib"
+  -I"$ROOT_DIR/lib/hal"
+  -I"$ROOT_DIR/lib/Logging"
+  -I"$ARDUINO_FRAMEWORK_DIR/cores/esp32"
+  -I"$ARDUINO_FRAMEWORK_DIR/variants/esp32c3"
+)
+
+c++ "${CXXFLAGS[@]}" "${SOURCES[@]}" -o "$BINARY"
+
+"$BINARY" "$@"