diff --git a/.circleci/config.yml b/.circleci/config.yml
index b61b03f..3ba630a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -25,13 +25,13 @@ jobs:
           command: npm test
       - run:
           name: Generate code coverage
-          command: './node_modules/.bin/nyc report --reporter=text-lcov'
-      - store_artifacts:
-          path: test-results.xml
-          prefix: tests
-      - store_artifacts:
-          path: coverage
-          prefix: coverage
+          command: ./node_modules/.bin/nyc report --reporter=json
+      - run:
+          name: moving report to right file
+          command: mv coverage/coverage-final.json coverage/coverage.json
+      - run:
+          name: send code coverage to codecov
+          command: ./node_modules/.bin/codecov
 
 workflows:
   version: 2
diff --git a/.gitignore b/.gitignore
index 9bfa834..1d54367 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ cdt.iml
 **/.DS_Store
 output/*
 !output/.gitkeep
+coverage/*.json
diff --git a/README.md b/README.md
index 87e2d87..badf6c4 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ CLI for Developers
 [![GithubCI](https://github.com/codingtools/cdt/workflows/GithubCI/badge.svg)](https://github.com/codingtools/cdt/actions?query=workflow%3AGithubCI)
 [![CircleCI](https://circleci.com/gh/codingtools/cdt/tree/release%2Frelease-v0.1.svg?style=shield)](https://circleci.com/gh/codingtools/cdt/tree/release%2Frelease-v0.1)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/82d29e2a902a4c338228d636f290d9cd)](https://app.codacy.com/gh/codingtools/cdt?utm_source=github.com&utm_medium=referral&utm_content=codingtools/cdt&utm_campaign=Badge_Grade_Dashboard)
+[![codecov](https://codecov.io/gh/codingtools/cdt/branch/release%2Frelease-v0.1/graph/badge.svg)](https://codecov.io/gh/codingtools/cdt)
 [![Version](https://img.shields.io/npm/v/@codingtools/cdt)](https://npmjs.org/package/@codingtools/cdt)
 ![npm](https://img.shields.io/npm/dt/@codingtools/cdt)
 ![node (scoped)](https://img.shields.io/node/v/@codingtools/cdt)[![GitHub commit activity](https://img.shields.io/github/commit-activity/m/codingtools/cdt)](https://github.com/codingtools/cdt/graphs/commit-activity)
diff --git a/coverage/.gitkeep b/coverage/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/package-lock.json b/package-lock.json
index 16a7802..920f8af 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -634,6 +634,14 @@
       "integrity": "sha512-NyzhuSBy97B/zE58cDw4NyGvByQbAHNP9069KVSgnXt/sc0T6MFRh0InKAeBVHJWdSXG1S3+PxgVIgKo9mTHbw==",
       "dev": true
     },
+    "agent-base": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.0.tgz",
+      "integrity": "sha512-j1Q7cSCqN+AwrmDd+pzgqc0/NpC655x2bUf5ZjRIO77DcNBFmh+OgRNzF6OKdCC9RSCb19fGd99+bhXFdkRNqw==",
+      "requires": {
+        "debug": "4"
+      }
+    },
     "aggregate-error": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.0.1.tgz",
@@ -666,6 +674,11 @@
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
       "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ=="
     },
+    "ansi-font": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/ansi-font/-/ansi-font-0.0.2.tgz",
+      "integrity": "sha1-iQMBvVhBRi/TnAt3Ca/R9SUUMzE="
+    },
     "ansi-regex": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
@@ -711,6 +724,11 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "argv": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
+      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas="
+    },
     "array-union": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-2.1.0.tgz",
@@ -1034,6 +1052,18 @@
       "resolved": "https://registry.npmjs.org/clone/-/clone-1.0.4.tgz",
       "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4="
     },
+    "codecov": {
+      "version": "3.6.5",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.6.5.tgz",
+      "integrity": "sha512-v48WuDMUug6JXwmmfsMzhCHRnhUf8O3duqXvltaYJKrO1OekZWpB/eH6iIoaxMl8Qli0+u3OxptdsBOYiD7VAQ==",
+      "requires": {
+        "argv": "0.0.2",
+        "ignore-walk": "3.0.3",
+        "js-yaml": "3.13.1",
+        "teeny-request": "6.0.1",
+        "urlgrey": "0.4.4"
+      }
+    },
     "color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -1689,6 +1719,31 @@
         }
       }
     },
+    "http-proxy-agent": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.0.tgz",
+      "integrity": "sha512-GX0FA6+IcDf4Oxc/FBWgYj4zKgo/DnZrksaG9jyuQLExs6xlX+uI5lcA8ymM3JaZTRrF/4s2UX19wJolyo7OBA==",
+      "requires": {
+        "agent-base": "6",
+        "debug": "4"
+      }
+    },
+    "https-proxy-agent": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-4.0.0.tgz",
+      "integrity": "sha512-zoDhWrkR3of1l9QAL8/scJZyLu8j/gBkcwcaQOZh7Gyh/+uJQzGVETdgT30akuwkpL8HTRfssqI3BZuV18teDg==",
+      "requires": {
+        "agent-base": "5",
+        "debug": "4"
+      },
+      "dependencies": {
+        "agent-base": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz",
+          "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g=="
+        }
+      }
+    },
     "hyperlinker": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/hyperlinker/-/hyperlinker-1.0.0.tgz",
@@ -1700,6 +1755,14 @@
       "integrity": "sha512-MzbUSahkTW1u7JpKKjY7LCARd1fU5W2rLdxlM4kdkayuCwZImjkpluF9CM1aLewYJguPDqewLam18Y6AU69A8A==",
       "dev": true
     },
+    "ignore-walk": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.3.tgz",
+      "integrity": "sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==",
+      "requires": {
+        "minimatch": "^3.0.4"
+      }
+    },
     "imurmurhash": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
@@ -2402,6 +2465,11 @@
         "semver": "^5.7.0"
       }
     },
+    "node-fetch": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
+      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+    },
     "node-preload": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/node-preload/-/node-preload-0.2.1.tgz",
@@ -3223,6 +3291,14 @@
         }
       }
     },
+    "stream-events": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.5.tgz",
+      "integrity": "sha512-E1GUzBSgvct8Jsb3v2X15pjzN1tYebtbLaMg+eBOUOAxgbLoSbT2NS91ckc5lJD1KfLjId+jXJRgo0qnV5Nerg==",
+      "requires": {
+        "stubs": "^3.0.0"
+      }
+    },
     "string-width": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
@@ -3301,6 +3377,11 @@
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
       "dev": true
     },
+    "stubs": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/stubs/-/stubs-3.0.0.tgz",
+      "integrity": "sha1-6NK6H6nJBXAwPAMLaQD31fiavls="
+    },
     "supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
@@ -3350,6 +3431,18 @@
         "readable-stream": "^3.1.1"
       }
     },
+    "teeny-request": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-6.0.1.tgz",
+      "integrity": "sha512-TAK0c9a00ELOqLrZ49cFxvPVogMUFaWY8dUsQc/0CuQPGF+BOxOQzXfE413BAk2kLomwNplvdtMpeaeGWmoc2g==",
+      "requires": {
+        "http-proxy-agent": "^4.0.0",
+        "https-proxy-agent": "^4.0.0",
+        "node-fetch": "^2.2.0",
+        "stream-events": "^1.0.5",
+        "uuid": "^3.3.2"
+      }
+    },
     "terser": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/terser/-/terser-4.4.3.tgz",
@@ -3372,6 +3465,14 @@
         }
       }
     },
+    "test": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/test/-/test-0.6.0.tgz",
+      "integrity": "sha1-WYasRF7Bd1QyJRLRBLoyyKY+k44=",
+      "requires": {
+        "ansi-font": "0.0.2"
+      }
+    },
     "test-exclude": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-6.0.0.tgz",
@@ -3641,6 +3742,11 @@
       "resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz",
       "integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg="
     },
+    "urlgrey": {
+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
+      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8="
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
diff --git a/package.json b/package.json
index 147995f..44f5aa0 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "avsc": "^5.4.18",
     "axios": "^0.19.0",
     "chalk": "^3.0.0",
+    "codecov": "^3.6.5",
     "crypto-js": "^3.1.9-1",
     "detect-character-encoding": "^0.8.0",
     "encoding-japanese": "^1.0.30",
@@ -29,6 +30,7 @@
     "nyc": "^15.0.0",
     "ora": "^4.0.2",
     "signale": "^1.4.0",
+    "test": "^0.6.0",
     "tslib": "^1.10.0"
   },
   "devDependencies": {
diff --git a/tsconfig.json b/tsconfig.json
index b4c5d76..0763dbd 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,7 +6,8 @@
     "outDir": "lib",
     "rootDir": "src",
     "strict": true,
-    "target": "es2017"
+    "target": "es2017",
+    "sourceMap": true
   },
   "include": [
     "src/**/*"