diff options
author | Jiri Suchan <yed@vanyli.net> | 2022-06-30 11:14:07 +0900 |
---|---|---|
committer | Jiri Suchan <yed@vanyli.net> | 2022-08-19 20:32:13 +0900 |
commit | 388d35b74d8919b251faae9e24af50476f12b1a2 (patch) | |
tree | 6e984d73605bf3de867722bd88e1ee888a351fea /tests | |
parent | b04593c22bd5e88d24f1be19422696e7bde584f6 (diff) |
ci: add basic test pipeline for shader builders
Diffstat (limited to 'tests')
21 files changed, 448 insertions, 0 deletions
diff --git a/tests/python_build/conftest.py b/tests/python_build/conftest.py new file mode 100644 index 0000000000..617230926a --- /dev/null +++ b/tests/python_build/conftest.py @@ -0,0 +1,26 @@ +import os +import sys +from pathlib import Path + +import pytest + +CWD = Path(__file__).parent +ROOT = CWD.parent.parent +# append directory with build files to sys.path to import them +sys.path.append(str(ROOT)) + + +@pytest.fixture +def shader_files(request): + shader_path = request.param + + res = { + "path_input": str(CWD / "fixtures" / f"{shader_path}.glsl"), + "path_output": str(CWD / "fixtures" / f"{shader_path}.glsl.gen.h"), + "path_expected_full": str(CWD / "fixtures" / f"{shader_path}_expected_full.glsl"), + "path_expected_parts": str(CWD / "fixtures" / f"{shader_path}_expected_parts.json"), + } + yield res + + if not os.getenv("PYTEST_KEEP_GENERATED_FILES"): + os.remove(res["path_output"]) diff --git a/tests/python_build/fixtures/gles3/_included.glsl b/tests/python_build/fixtures/gles3/_included.glsl new file mode 100644 index 0000000000..adf5f702d3 --- /dev/null +++ b/tests/python_build/fixtures/gles3/_included.glsl @@ -0,0 +1 @@ +#define M_PI 3.14159265359 diff --git a/tests/python_build/fixtures/gles3/vertex_fragment.glsl b/tests/python_build/fixtures/gles3/vertex_fragment.glsl new file mode 100644 index 0000000000..3004e22f25 --- /dev/null +++ b/tests/python_build/fixtures/gles3/vertex_fragment.glsl @@ -0,0 +1,34 @@ +#include "_included.glsl" + +#[modes] + +mode_ninepatch = #define USE_NINEPATCH + +#[specializations] + +DISABLE_LIGHTING = false + +#[vertex] + +precision highp float; +precision highp int; + +layout(location = 0) in highp vec3 vertex; + +out highp vec4 position_interp; + +void main() { + position_interp = vec4(vertex.x,1,0,1); +} + +#[fragment] + +precision highp float; +precision highp int; + +in highp vec4 position_interp; + +void main() { + highp float depth = ((position_interp.z / position_interp.w) + 1.0); + frag_color = vec4(depth); +} diff --git a/tests/python_build/fixtures/gles3/vertex_fragment_expected_full.glsl b/tests/python_build/fixtures/gles3/vertex_fragment_expected_full.glsl new file mode 100644 index 0000000000..7bf56e73cd --- /dev/null +++ b/tests/python_build/fixtures/gles3/vertex_fragment_expected_full.glsl @@ -0,0 +1,50 @@ +/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */ +#ifndef VERTEX_FRAGMENT_GLSL_GEN_HGLES3_GLES3 +#define VERTEX_FRAGMENT_GLSL_GEN_HGLES3_GLES3 + + +#include "drivers/gles3/shader_gles3.h" + + +class VertexFragmentShaderGLES3 : public ShaderGLES3 { + +public: + + enum ShaderVariant { + MODE_NINEPATCH, + }; + + enum Specializations { + DISABLE_LIGHTING=1, + }; + + _FORCE_INLINE_ void version_bind_shader(RID p_version,ShaderVariant p_variant,uint64_t p_specialization=0) { _version_bind_shader(p_version,p_variant,p_specialization); } + +protected: + + virtual void _init() override { + + static const char **_uniform_strings=nullptr; + static const char* _variant_defines[]={ + "#define USE_NINEPATCH", + }; + + static TexUnitPair *_texunit_pairs=nullptr; + static UBOPair *_ubo_pairs=nullptr; + static Specialization _spec_pairs[]={ + {"DISABLE_LIGHTING",false}, + }; + + static const char _vertex_code[]={ +10,112,114,101,99,105,115,105,111,110,32,104,105,103,104,112,32,102,108,111,97,116,59,10,112,114,101,99,105,115,105,111,110,32,104,105,103,104,112,32,105,110,116,59,10,10,108,97,121,111,117,116,40,108,111,99,97,116,105,111,110,32,61,32,48,41,32,105,110,32,104,105,103,104,112,32,118,101,99,51,32,118,101,114,116,101,120,59,10,10,111,117,116,32,104,105,103,104,112,32,118,101,99,52,32,112,111,115,105,116,105,111,110,95,105,110,116,101,114,112,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,112,111,115,105,116,105,111,110,95,105,110,116,101,114,112,32,61,32,118,101,99,52,40,118,101,114,116,101,120,46,120,44,49,44,48,44,49,41,59,10,125,10,10, 0}; + + static const char _fragment_code[]={ +10,112,114,101,99,105,115,105,111,110,32,104,105,103,104,112,32,102,108,111,97,116,59,10,112,114,101,99,105,115,105,111,110,32,104,105,103,104,112,32,105,110,116,59,10,10,105,110,32,104,105,103,104,112,32,118,101,99,52,32,112,111,115,105,116,105,111,110,95,105,110,116,101,114,112,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,104,105,103,104,112,32,102,108,111,97,116,32,100,101,112,116,104,32,61,32,40,40,112,111,115,105,116,105,111,110,95,105,110,116,101,114,112,46,122,32,47,32,112,111,115,105,116,105,111,110,95,105,110,116,101,114,112,46,119,41,32,43,32,49,46,48,41,59,10,9,102,114,97,103,95,99,111,108,111,114,32,61,32,118,101,99,52,40,100,101,112,116,104,41,59,10,125,10, 0}; + + _setup(_vertex_code,_fragment_code,"VertexFragmentShaderGLES3",0,_uniform_strings,0,_ubo_pairs,0,_texunit_pairs,1,_spec_pairs,1,_variant_defines); + } + +}; + +#endif + diff --git a/tests/python_build/fixtures/gles3/vertex_fragment_expected_parts.json b/tests/python_build/fixtures/gles3/vertex_fragment_expected_parts.json new file mode 100644 index 0000000000..eaeb5981c0 --- /dev/null +++ b/tests/python_build/fixtures/gles3/vertex_fragment_expected_parts.json @@ -0,0 +1,52 @@ +{ + "vertex_lines": [ + "", + "precision highp float;", + "precision highp int;", + "", + "layout(location = 0) in highp vec3 vertex;", + "", + "out highp vec4 position_interp;", + "", + "void main() {", + "\tposition_interp = vec4(vertex.x,1,0,1);", + "}", + "" + ], + "fragment_lines": [ + "", + "precision highp float;", + "precision highp int;", + "", + "in highp vec4 position_interp;", + "", + "void main() {", + "\thighp float depth = ((position_interp.z / position_interp.w) + 1.0);", + "\tfrag_color = vec4(depth);", + "}" + ], + "uniforms": [], + "fbos": [], + "texunits": [], + "texunit_names": [], + "ubos": [], + "ubo_names": [], + "vertex_included_files": [], + "fragment_included_files": [], + "reading": "fragment", + "line_offset": 33, + "vertex_offset": 10, + "fragment_offset": 23, + "variant_defines": [ + "#define USE_NINEPATCH" + ], + "variant_names": [ + "MODE_NINEPATCH" + ], + "specialization_names": [ + "DISABLE_LIGHTING" + ], + "specialization_values": [ + " false\n" + ] +} diff --git a/tests/python_build/fixtures/glsl/_included.glsl b/tests/python_build/fixtures/glsl/_included.glsl new file mode 100644 index 0000000000..adf5f702d3 --- /dev/null +++ b/tests/python_build/fixtures/glsl/_included.glsl @@ -0,0 +1 @@ +#define M_PI 3.14159265359 diff --git a/tests/python_build/fixtures/glsl/compute.glsl b/tests/python_build/fixtures/glsl/compute.glsl new file mode 100644 index 0000000000..e81f48d463 --- /dev/null +++ b/tests/python_build/fixtures/glsl/compute.glsl @@ -0,0 +1,12 @@ +#[compute] + +#version 450 + +#VERSION_DEFINES + + +#include "_included.glsl" + +void main() { + vec3 static_light = vec3(0, 1, 0); +} diff --git a/tests/python_build/fixtures/glsl/compute_expected_full.glsl b/tests/python_build/fixtures/glsl/compute_expected_full.glsl new file mode 100644 index 0000000000..b937d732c8 --- /dev/null +++ b/tests/python_build/fixtures/glsl/compute_expected_full.glsl @@ -0,0 +1,8 @@ +/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */ +#ifndef COMPUTE_SHADER_GLSL_RAW_H +#define COMPUTE_SHADER_GLSL_RAW_H + +static const char compute_shader_glsl[] = { + 35,91,99,111,109,112,117,116,101,93,10,10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,10,35,100,101,102,105,110,101,32,77,95,80,73,32,51,46,49,52,49,53,57,50,54,53,51,53,57,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,118,101,99,51,32,115,116,97,116,105,99,95,108,105,103,104,116,32,61,32,118,101,99,51,40,48,44,32,49,44,32,48,41,59,10,125,10,0 +}; +#endif diff --git a/tests/python_build/fixtures/glsl/compute_expected_parts.json b/tests/python_build/fixtures/glsl/compute_expected_parts.json new file mode 100644 index 0000000000..025c568ae0 --- /dev/null +++ b/tests/python_build/fixtures/glsl/compute_expected_parts.json @@ -0,0 +1,3 @@ +{ + "code": "#[compute]\n\n#version 450\n\n#VERSION_DEFINES\n\n\n#define M_PI 3.14159265359\n\nvoid main() {\n\tvec3 static_light = vec3(0, 1, 0);\n}\n" +} diff --git a/tests/python_build/fixtures/glsl/vertex_fragment.glsl b/tests/python_build/fixtures/glsl/vertex_fragment.glsl new file mode 100644 index 0000000000..0bdce783d7 --- /dev/null +++ b/tests/python_build/fixtures/glsl/vertex_fragment.glsl @@ -0,0 +1,32 @@ +#[versions] + +lines = "#define MODE_LINES"; + +#[vertex] + +#version 450 + +#VERSION_DEFINES + +layout(location = 0) out vec3 uv_interp; + +void main() { + +#ifdef MODE_LINES + uv_interp = vec3(0,0,1); +#endif +} + +#[fragment] + +#version 450 + +#VERSION_DEFINES + +#include "_included.glsl" + +layout(location = 0) out vec4 dst_color; + +void main() { + dst_color = vec4(1,1,0,0); +} diff --git a/tests/python_build/fixtures/glsl/vertex_fragment_expected_full.glsl b/tests/python_build/fixtures/glsl/vertex_fragment_expected_full.glsl new file mode 100644 index 0000000000..3f53a17fac --- /dev/null +++ b/tests/python_build/fixtures/glsl/vertex_fragment_expected_full.glsl @@ -0,0 +1,8 @@ +/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */ +#ifndef VERTEX_FRAGMENT_SHADER_GLSL_RAW_H +#define VERTEX_FRAGMENT_SHADER_GLSL_RAW_H + +static const char vertex_fragment_shader_glsl[] = { + 35,91,118,101,114,115,105,111,110,115,93,10,10,108,105,110,101,115,32,61,32,34,35,100,101,102,105,110,101,32,77,79,68,69,95,76,73,78,69,83,34,59,10,10,35,91,118,101,114,116,101,120,93,10,10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,108,97,121,111,117,116,40,108,111,99,97,116,105,111,110,32,61,32,48,41,32,111,117,116,32,118,101,99,51,32,117,118,95,105,110,116,101,114,112,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,10,35,105,102,100,101,102,32,77,79,68,69,95,76,73,78,69,83,10,9,117,118,95,105,110,116,101,114,112,32,61,32,118,101,99,51,40,48,44,48,44,49,41,59,10,35,101,110,100,105,102,10,125,10,10,35,91,102,114,97,103,109,101,110,116,93,10,10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,35,100,101,102,105,110,101,32,77,95,80,73,32,51,46,49,52,49,53,57,50,54,53,51,53,57,10,10,108,97,121,111,117,116,40,108,111,99,97,116,105,111,110,32,61,32,48,41,32,111,117,116,32,118,101,99,52,32,100,115,116,95,99,111,108,111,114,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,100,115,116,95,99,111,108,111,114,32,61,32,118,101,99,52,40,49,44,49,44,48,44,48,41,59,10,125,10,0 +}; +#endif diff --git a/tests/python_build/fixtures/glsl/vertex_fragment_expected_parts.json b/tests/python_build/fixtures/glsl/vertex_fragment_expected_parts.json new file mode 100644 index 0000000000..38312367a0 --- /dev/null +++ b/tests/python_build/fixtures/glsl/vertex_fragment_expected_parts.json @@ -0,0 +1,3 @@ +{ + "code": "#[versions]\n\nlines = \"#define MODE_LINES\";\n\n#[vertex]\n\n#version 450\n\n#VERSION_DEFINES\n\nlayout(location = 0) out vec3 uv_interp;\n\nvoid main() {\n\n#ifdef MODE_LINES\n\tuv_interp = vec3(0,0,1);\n#endif\n}\n\n#[fragment]\n\n#version 450\n\n#VERSION_DEFINES\n\n#define M_PI 3.14159265359\n\nlayout(location = 0) out vec4 dst_color;\n\nvoid main() {\n\tdst_color = vec4(1,1,0,0);\n}\n" +} diff --git a/tests/python_build/fixtures/rd_glsl/_included.glsl b/tests/python_build/fixtures/rd_glsl/_included.glsl new file mode 100644 index 0000000000..adf5f702d3 --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/_included.glsl @@ -0,0 +1 @@ +#define M_PI 3.14159265359 diff --git a/tests/python_build/fixtures/rd_glsl/compute.glsl b/tests/python_build/fixtures/rd_glsl/compute.glsl new file mode 100644 index 0000000000..66fbbeb401 --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/compute.glsl @@ -0,0 +1,13 @@ +#[compute] + +#version 450 + +#VERSION_DEFINES + +#define BLOCK_SIZE 8 + +#include "_included.glsl" + +void main() { + uint t = BLOCK_SIZE + 1; +} diff --git a/tests/python_build/fixtures/rd_glsl/compute_expected_full.glsl b/tests/python_build/fixtures/rd_glsl/compute_expected_full.glsl new file mode 100644 index 0000000000..b59923e28a --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/compute_expected_full.glsl @@ -0,0 +1,20 @@ +/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */ +#ifndef COMPUTE_GLSL_GEN_H_RD +#define COMPUTE_GLSL_GEN_H_RD + +#include "servers/rendering/renderer_rd/shader_rd.h" + +class ComputeShaderRD : public ShaderRD { + +public: + + ComputeShaderRD() { + + static const char _compute_code[] = { +10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,35,100,101,102,105,110,101,32,66,76,79,67,75,95,83,73,90,69,32,56,10,10,35,100,101,102,105,110,101,32,77,95,80,73,32,51,46,49,52,49,53,57,50,54,53,51,53,57,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,117,105,110,116,32,116,32,61,32,66,76,79,67,75,95,83,73,90,69,32,43,32,49,59,10,125,10,0 + }; + setup(nullptr, nullptr, _compute_code, "ComputeShaderRD"); + } +}; + +#endif diff --git a/tests/python_build/fixtures/rd_glsl/compute_expected_parts.json b/tests/python_build/fixtures/rd_glsl/compute_expected_parts.json new file mode 100644 index 0000000000..26ba9e4fc4 --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/compute_expected_parts.json @@ -0,0 +1,28 @@ +{ + "vertex_lines": [], + "fragment_lines": [], + "compute_lines": [ + "", + "#version 450", + "", + "#VERSION_DEFINES", + "", + "#define BLOCK_SIZE 8", + "", + "#define M_PI 3.14159265359", + "", + "void main() {", + "\tuint t = BLOCK_SIZE + 1;", + "}" + ], + "vertex_included_files": [], + "fragment_included_files": [], + "compute_included_files": [ + "tests/python_build/fixtures/rd_glsl/_included.glsl" + ], + "reading": "compute", + "line_offset": 13, + "vertex_offset": 0, + "fragment_offset": 0, + "compute_offset": 1 +} diff --git a/tests/python_build/fixtures/rd_glsl/vertex_fragment.glsl b/tests/python_build/fixtures/rd_glsl/vertex_fragment.glsl new file mode 100644 index 0000000000..27be08a857 --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/vertex_fragment.glsl @@ -0,0 +1,25 @@ +#[vertex] + +#version 450 + +#VERSION_DEFINES + +#include "_included.glsl" + +layout(location = 0) out vec2 uv_interp; + +void main() { + uv_interp = vec2(0, 1); +} + +#[fragment] + +#version 450 + +#VERSION_DEFINES + +layout(location = 0) in vec2 uv_interp; + +void main() { + uv_interp = vec2(1, 0); +} diff --git a/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_full.glsl b/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_full.glsl new file mode 100644 index 0000000000..ff804dbf89 --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_full.glsl @@ -0,0 +1,23 @@ +/* WARNING, THIS FILE WAS GENERATED, DO NOT EDIT */ +#ifndef VERTEX_FRAGMENT_GLSL_GEN_H_RD +#define VERTEX_FRAGMENT_GLSL_GEN_H_RD + +#include "servers/rendering/renderer_rd/shader_rd.h" + +class VertexFragmentShaderRD : public ShaderRD { + +public: + + VertexFragmentShaderRD() { + + static const char _vertex_code[] = { +10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,35,100,101,102,105,110,101,32,77,95,80,73,32,51,46,49,52,49,53,57,50,54,53,51,53,57,10,10,108,97,121,111,117,116,40,108,111,99,97,116,105,111,110,32,61,32,48,41,32,111,117,116,32,118,101,99,50,32,117,118,95,105,110,116,101,114,112,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,117,118,95,105,110,116,101,114,112,32,61,32,118,101,99,50,40,48,44,32,49,41,59,10,125,10,10,0 + }; + static const char _fragment_code[] = { +10,35,118,101,114,115,105,111,110,32,52,53,48,10,10,35,86,69,82,83,73,79,78,95,68,69,70,73,78,69,83,10,10,108,97,121,111,117,116,40,108,111,99,97,116,105,111,110,32,61,32,48,41,32,105,110,32,118,101,99,50,32,117,118,95,105,110,116,101,114,112,59,10,10,118,111,105,100,32,109,97,105,110,40,41,32,123,10,9,117,118,95,105,110,116,101,114,112,32,61,32,118,101,99,50,40,49,44,32,48,41,59,10,125,10,0 + }; + setup(_vertex_code, _fragment_code, nullptr, "VertexFragmentShaderRD"); + } +}; + +#endif diff --git a/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_parts.json b/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_parts.json new file mode 100644 index 0000000000..dbf833edea --- /dev/null +++ b/tests/python_build/fixtures/rd_glsl/vertex_fragment_expected_parts.json @@ -0,0 +1,40 @@ +{ + "vertex_lines": [ + "", + "#version 450", + "", + "#VERSION_DEFINES", + "", + "#define M_PI 3.14159265359", + "", + "layout(location = 0) out vec2 uv_interp;", + "", + "void main() {", + "\tuv_interp = vec2(0, 1);", + "}", + "" + ], + "fragment_lines": [ + "", + "#version 450", + "", + "#VERSION_DEFINES", + "", + "layout(location = 0) in vec2 uv_interp;", + "", + "void main() {", + "\tuv_interp = vec2(1, 0);", + "}" + ], + "compute_lines": [], + "vertex_included_files": [ + "tests/python_build/fixtures/rd_glsl/_included.glsl" + ], + "fragment_included_files": [], + "compute_included_files": [], + "reading": "fragment", + "line_offset": 25, + "vertex_offset": 1, + "fragment_offset": 15, + "compute_offset": 0 +} diff --git a/tests/python_build/test_gles3_builder.py b/tests/python_build/test_gles3_builder.py new file mode 100644 index 0000000000..861e0b84c4 --- /dev/null +++ b/tests/python_build/test_gles3_builder.py @@ -0,0 +1,31 @@ +import json + +import pytest + +from gles3_builders import build_gles3_header, GLES3HeaderStruct + + +@pytest.mark.parametrize( + ["shader_files", "builder", "header_struct"], + [ + ("gles3/vertex_fragment", build_gles3_header, GLES3HeaderStruct), + ], + indirect=["shader_files"], +) +def test_gles3_builder(shader_files, builder, header_struct): + header = header_struct() + + builder(shader_files["path_input"], "drivers/gles3/shader_gles3.h", "GLES3", header_data=header) + + with open(shader_files["path_expected_parts"], "r") as f: + expected_parts = json.load(f) + assert expected_parts == header.__dict__ + + with open(shader_files["path_output"], "r") as f: + actual_output = f.read() + assert actual_output + + with open(shader_files["path_expected_full"], "r") as f: + expected_output = f.read() + + assert actual_output == expected_output diff --git a/tests/python_build/test_glsl_builder.py b/tests/python_build/test_glsl_builder.py new file mode 100644 index 0000000000..b9dcef48ac --- /dev/null +++ b/tests/python_build/test_glsl_builder.py @@ -0,0 +1,37 @@ +import json + +import pytest + +from glsl_builders import build_raw_header, RAWHeaderStruct, build_rd_header, RDHeaderStruct + + +@pytest.mark.parametrize( + [ + "shader_files", + "builder", + "header_struct", + ], + [ + ("glsl/vertex_fragment", build_raw_header, RAWHeaderStruct), + ("glsl/compute", build_raw_header, RAWHeaderStruct), + ("rd_glsl/vertex_fragment", build_rd_header, RDHeaderStruct), + ("rd_glsl/compute", build_rd_header, RDHeaderStruct), + ], + indirect=["shader_files"], +) +def test_glsl_builder(shader_files, builder, header_struct): + header = header_struct() + builder(shader_files["path_input"], header_data=header) + + with open(shader_files["path_expected_parts"], "r") as f: + expected_parts = json.load(f) + assert expected_parts == header.__dict__ + + with open(shader_files["path_output"], "r") as f: + actual_output = f.read() + assert actual_output + + with open(shader_files["path_expected_full"], "r") as f: + expected_output = f.read() + + assert actual_output == expected_output |