ci: add unit testing to drone-ci

.drone.yml

@@ -32,8 +32,43 @@ steps:
       fi
 
       exit ${has_fomatting_issues}
----
 
+---
+kind: pipeline
+type: docker
+name: unit tests
+clone:
+  recursive: true
+  submodule_update_remote: true
+
+trigger:
+  branch:
+  - main
+
+steps:
+- name: unit tests
+  image: unit_tests:latest
+  pull: if-not-exists
+  commands:
+    - |
+      git submodule update --init --recursive
+
+      conan build . \
+        -c tools.system.package_manager:mode=install \
+        -s build_type=Release \
+        -o enable_static_analysis=False \
+        -o enable_tests=True \
+        --build=missing
+
+      find ./build \
+        -type f \
+        -name '*_tests' \
+        -executable \
+        -exec sh -c \
+        '{}' \
+        \;
+
+---
 kind: pipeline
 type: docker
 name: static analysis
@@ -51,5 +86,12 @@ steps:
   pull: if-not-exists
   privileged: true
   commands:
-    - git submodule update --init --recursive
-    - conan build . -s build_type=Release -o enable_static_analysis=True --build=missing
+    - |
+      git submodule update --init --recursive
+
+      conan build . \
+        -c tools.system.package_manager:mode=install \
+        -s build_type=Release \
+        -o enable_static_analysis=True \
+        -o enable_tests=True \
+        --build=missing

modules/renderer/src/gl/buffers.cpp

@@ -7,7 +7,7 @@ namespace lt {
 
 //==================== CONSTANT_BUFFER ====================//
 glConstantBuffer::glConstantBuffer(ConstantBufferIndex index, unsigned int size)
-    : m_buffer_id(NULL)
+    : m_buffer_id()
     , m_index(static_cast<int>(index))
 {
 	glCreateBuffers(1, &m_buffer_id);
@@ -40,7 +40,7 @@ void glConstantBuffer::un_map()
 
 //==================== VERTEX_BUFFER ====================//
 glVertexBuffer::glVertexBuffer(float *vertices, unsigned int stride, unsigned int count)
-    : m_buffer_id(NULL)
+    : m_buffer_id()
 {
 	glCreateBuffers(1, &m_buffer_id);
 	glNamedBufferData(
@@ -63,7 +63,7 @@ void glVertexBuffer::bind()
 
 void glVertexBuffer::un_bind()
 {
-	glBindBuffer(GL_ARRAY_BUFFER, NULL);
+	glBindBuffer(GL_ARRAY_BUFFER, {});
 }
 
 auto glVertexBuffer::map() -> void *
@@ -78,7 +78,7 @@ void glVertexBuffer::un_map()
 //==================== VERTEX_BUFFER ====================//
 
 //==================== INDEX_BUFFER ====================//
-glIndexBuffer::glIndexBuffer(unsigned int *indices, unsigned int count): m_buffer_id(NULL)
+glIndexBuffer::glIndexBuffer(unsigned int *indices, unsigned int count): m_buffer_id()
 {
 	// generate indices if not provided
 	auto hasIndices = !!indices;
@@ -132,7 +132,7 @@ void glIndexBuffer::bind()
 
 void glIndexBuffer::un_bind()
 {
-	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, NULL);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, {});
 }
 //==================== INDEX_BUFFER ====================//
 

modules/renderer/src/gl/framebuffers.cpp

@@ -6,9 +6,9 @@ namespace lt {
 
 glFramebuffer::glFramebuffer(const FramebufferSpecification &specification)
     : m_specification(specification)
-    , m_buffer_id(NULL)
-    , m_color_attachment_id(NULL)
-    , m_depth_stencil_attachment_id(NULL)
+    , m_buffer_id()
+    , m_color_attachment_id()
+    , m_depth_stencil_attachment_id()
 {
 	resize({ specification.width, specification.height });
 }
@@ -59,7 +59,7 @@ void glFramebuffer::resize(const glm::uvec2 &size)
 	    GL_RGBA8,
 	    m_specification.width,
 	    m_specification.height,
-	    NULL,
+	    {},
 	    GL_RGBA,
 	    GL_UNSIGNED_BYTE,
 	    nullptr
@@ -74,17 +74,6 @@ void glFramebuffer::resize(const glm::uvec2 &size)
 	    0
 	);
 
-	// glTextureStorage2D(m_color_attachment_id, 0, GL_RGBA8, m_specification.width,
-	// m_specification.height);
-
-	//	glCreateTextures(GL_TEXTURE_2D, 1, &m_depth_stencil_attachment_id);
-	//	glBindTexture(GL_TEXTURE_2D, m_depth_stencil_attachment_id);
-	//	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, m_specification.width,
-	// m_specification.height, NULL, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, nullptr);
-	//	// glTextureStorage2D(m_depth_stencil_attachment_id, 0, GL_DEPTH24_STENCIL8,
-	// m_specification.width, m_specification.height); 	glFramebufferTexture2D(GL_FRAMEBUFFER,
-	// GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, m_depth_stencil_attachment_id, 0);
-
 	ensure(
 	    (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE),
 	    "Framebuffer is incomplete"

modules/renderer/src/gl/render_command.cpp

@@ -33,7 +33,7 @@ void glRenderCommand::draw_indexed(unsigned int count)
 
 void glRenderCommand::default_target_framebuffer()
 {
-	glBindFramebuffer(GL_FRAMEBUFFER, NULL);
+	glBindFramebuffer(GL_FRAMEBUFFER, {});
 }
 
 void glRenderCommand::set_viewport(

modules/renderer/src/gl/shader.cpp

@@ -56,7 +56,7 @@ void glShader::bind()
 
 void glShader::un_bind()
 {
-	glUseProgram(NULL);
+	glUseProgram({});
 }
 
 auto glShader::compile_shader(const std::string &source, Shader::Stage stage) -> unsigned int
@@ -67,7 +67,7 @@ auto glShader::compile_shader(const std::string &source, Shader::Stage stage) ->
 	    stage == Shader::Stage::vertex   ? GL_VERTEX_SHADER :
 	    stage == Shader::Stage::pixel    ? GL_FRAGMENT_SHADER :
 	    stage == Shader::Stage::geometry ? GL_GEOMETRY_SHADER :
-	                                       NULL
+	                                       0
 	);
 
 	// compile
@@ -91,7 +91,7 @@ auto glShader::compile_shader(const std::string &source, Shader::Stage stage) ->
 		    errorLog
 		);
 
-		return NULL;
+		return {};
 	}
 #define LIGHT_OPENGL_ENABLE_SHADER_INFO_LOG
 #ifdef LIGHT_OPENGL_ENABLE_SHADER_INFO_LOG

modules/renderer/src/gl/vertex_layout.cpp

@@ -9,7 +9,7 @@ glVertexLayout::glVertexLayout(
     const Ref<VertexBuffer> &buffer,
     const std::vector<std::pair<std::string, VertexElementType>> &elements
 )
-    : m_array_id(NULL)
+    : m_array_id()
 {
 	// check
 	ensure(
@@ -65,7 +65,7 @@ void glVertexLayout::bind()
 
 void glVertexLayout::un_bind()
 {
-	glBindVertexArray(NULL);
+	glBindVertexArray({});
 }
 
 auto glVertexLayout::get_element_desc(VertexElementType type, unsigned int offset)

tools/ci/images/unit_tests/Dockerfile

@@ -0,0 +1,37 @@
+FROM alpine:latest
+
+RUN apk add --no-cache \
+    bash \
+    clang \
+    llvm \
+    cmake \
+    git \
+    make \
+    g++ \
+    python3 \
+    py3-pip \
+    mesa-dev \
+    mesa-gl \
+    pkgconf
+
+
+RUN pip install --no-cache-dir --break-system-packages conan gitpython \
+    && conan profile detect
+
+RUN clang --version  \
+    && conan --version \
+    && pip --version \
+    && cmake --version \
+    && clang --version
+
+
+RUN git clone 'https://git.light7734.com/light7734/light.git' --recursive \
+    && cd light \
+    && conan install . \
+        -s build_type=Debug \
+        -c tools.system.package_manager:mode=install \
+        --build=missing \
+    && conan install . \
+        -s build_type=Release \
+        -c tools.system.package_manager:mode=install \
+        --build=missing