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test: verify program output
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7 files changed

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‎test/fixtures/addition_output.txt‎

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‎test/fixtures/args_sum_output.txt‎

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‎test/fixtures/args_sum_trace.json‎

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[
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{
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"Type": {
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"kind": 7,
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"lang_type": "Integer",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Type": {
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"kind": 9,
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"lang_type": "String",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Type": {
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"kind": 12,
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"lang_type": "Bool",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Type": {
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"kind": 9,
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"lang_type": "Symbol",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Type": {
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"kind": 24,
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"lang_type": "No type",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Path": ""
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},
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{
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"Function": {
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"path_id": 0,
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"line": 1,
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"name": "<top-level>"
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}
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},
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{
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"Call": {
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"function_id": 0,
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"args": [
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]
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}
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},
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{
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"Path": "test/programs/args_sum.rb"
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},
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{
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"Step": {
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"path_id": 1,
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"line": 3
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}
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},
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{
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"Step": {
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"path_id": 1,
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"line": 7
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}
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},
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{
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"Type": {
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"kind": 0,
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"lang_type": "Array",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"Type": {
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"kind": 16,
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"lang_type": "Object",
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"specific_info": {
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"kind": "None"
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}
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}
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},
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{
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"VariableName": "self"
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},
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{
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"Value": {
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"variable_id": 0,
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"value": {
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"kind": "Raw",
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"type_id": 6,
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"r": "main"
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}
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}
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},
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{
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"VariableName": "args"
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},
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{
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"Value": {
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"variable_id": 1,
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"value": {
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"kind": "Sequence",
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"type_id": 5,
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"elements": [
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{
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"kind": "String",
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"type_id": 1,
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"text": "1"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "2"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "3"
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}
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],
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"is_slice": false
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}
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}
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},
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{
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"Step": {
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"path_id": 1,
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"line": 3
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}
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},
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{
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"Function": {
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"path_id": 1,
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"line": 3,
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"name": "sum_args"
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}
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},
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{
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"Call": {
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"function_id": 1,
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"args": [
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{
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"variable_id": 0,
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"value": {
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"kind": "Raw",
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"r": "main"
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}
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},
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{
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"variable_id": 1,
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"value": {
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"kind": "Sequence",
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"type_id": 5,
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"elements": [
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{
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"kind": "String",
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"type_id": 1,
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"text": "1"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "2"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "3"
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}
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],
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"is_slice": false
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}
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}
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]
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}
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},
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{
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"Step": {
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"path_id": 1,
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"line": 4
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}
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},
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{
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"Value": {
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"variable_id": 1,
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"value": {
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"kind": "Sequence",
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"type_id": 5,
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"elements": [
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{
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"kind": "String",
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"type_id": 1,
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"text": "1"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "2"
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},
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{
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"kind": "String",
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"type_id": 1,
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"text": "3"
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}
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],
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"is_slice": false
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}
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}
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},
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{
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"Step": {
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"path_id": 1,
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"line": 5
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}
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},
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{
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"VariableName": "<return_value>"
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},
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{
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"Value": {
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"variable_id": 2,
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"value": {
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"kind": "Int",
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"type_id": 0,
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"i": 6
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}
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}
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},
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{
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"Return": {
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"return_value": {
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"kind": "Int",
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"type_id": 0,
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"i": 6
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}
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}
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},
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{
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"Step": {
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"path_id": 1,
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"line": 7
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}
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},
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{
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"Event": {
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"kind": 0,
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"content": "6",
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"metadata": ""
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}
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}
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]

‎test/fixtures/array_sum_output.txt‎

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‎test/fixtures/point_representation_output.txt‎

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"(3, 4)"

‎test/programs/args_sum.rb‎

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#!/usr/bin/env ruby
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def sum_args(args)
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args.map(&:to_i).reduce(0, :+)
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end
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puts sum_args(ARGV)
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‎test/test_tracer.rb‎

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require 'minitest/autorun'
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require 'json'
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require 'fileutils'
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require 'open3'
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class TraceTest < Minitest::Test
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TMP_DIR = File.expand_path('tmp', __dir__)
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FIXTURE_DIR = File.expand_path('fixtures', __dir__)
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PROGRAM_ARGS = {
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'args_sum' => %w[1 2 3]
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}
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def setup
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FileUtils.mkdir_p(TMP_DIR)
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end
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def run_trace(program_name)
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def run_trace(program_name, *args)
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base = File.basename(program_name, '.rb')
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Dir.chdir(File.expand_path('..', __dir__)) do
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program = File.join('test', 'programs', program_name)
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out_dir = File.join('test', 'tmp', base)
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FileUtils.mkdir_p(out_dir)
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system('ruby', 'gems/pure-ruby-tracer/lib/trace.rb', '--out-dir', out_dir, program)
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raise "trace failed" unless $?.success?
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JSON.parse(File.read(File.join(out_dir, 'trace.json')))
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stdout, stderr, status = Open3.capture3('ruby', 'gems/pure-ruby-tracer/lib/trace.rb', '--out-dir', out_dir, program, *args)
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raise "trace failed: #{stderr}" unless status.success?
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trace = JSON.parse(File.read(File.join(out_dir, 'trace.json')))
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program_out = stdout.lines.reject { |l| l.start_with?('call ') || l.start_with?('return') }.join
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[trace, program_out]
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end
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end
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@@ -28,10 +34,22 @@ def expected_trace(program_name)
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JSON.parse(File.read(fixture))
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end
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def expected_output(program_name)
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base = File.basename(program_name, '.rb')
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fixture = File.join(FIXTURE_DIR, "#{base}_output.txt")
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File.read(fixture)
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end
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def program_args(base)
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PROGRAM_ARGS.fetch(base, [])
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end
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Dir.glob(File.join(FIXTURE_DIR, '*_trace.json')).each do |fixture|
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base = File.basename(fixture, '_trace.json')
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define_method("test_#{base}") do
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assert_equal expected_trace("#{base}.rb"), run_trace("#{base}.rb")
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trace, out = run_trace("#{base}.rb", *program_args(base))
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assert_equal expected_trace("#{base}.rb"), trace
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assert_equal expected_output("#{base}.rb"), out
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end
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end
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end

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