diff --git a/.travis.yml b/.travis.yml
index 7e3a304b..85349adf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ matrix:
 
 before_install:
   - npm install -g npm
-  - npm install -g ganache-cli@~6.5.1
+  - npm install -g ganache-cli@~6.7.0
 
 before_script:
   - ganache-cli > ganache-cli.log &
@@ -22,7 +22,7 @@ before_script:
 script:
   - npm run lint
   - npm run build
-  - npm run test
+  - npm run test:unit  
 
 notifications:
   email: false
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 82661f7a..89321775 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1788,7 +1788,8 @@
     "ansi-colors": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
-      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA=="
+      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==",
+      "dev": true
     },
     "ansi-escapes": {
       "version": "4.3.1",
@@ -1825,6 +1826,7 @@
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
       "integrity": "sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==",
+      "dev": true,
       "requires": {
         "normalize-path": "^3.0.0",
         "picomatch": "^2.0.4"
@@ -1833,7 +1835,8 @@
         "normalize-path": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
-          "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="
+          "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+          "dev": true
         }
       }
     },
@@ -1871,6 +1874,7 @@
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
       }
@@ -1911,6 +1915,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array.prototype.map/-/array.prototype.map-1.0.2.tgz",
       "integrity": "sha512-Az3OYxgsa1g7xDYp86l0nnN4bcmuEITGe1rbdEBVkrqkzMgDcbdQ2R7r41pNzti+4NMces3H8gMmuioZUilLgw==",
+      "dev": true,
       "requires": {
         "define-properties": "^1.1.3",
         "es-abstract": "^1.17.0-next.1",
@@ -2781,7 +2786,8 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
     },
     "base-x": {
       "version": "3.0.8",
@@ -2818,7 +2824,8 @@
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       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.0.0.tgz",
-      "integrity": "sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow=="
+      "integrity": "sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow==",
+      "dev": true
     },
     "bindings": {
       "version": "1.5.0",
@@ -2950,6 +2957,7 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -2959,6 +2967,7 @@
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       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
       "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "dev": true,
       "requires": {
         "fill-range": "^7.0.1"
       }
@@ -2971,7 +2980,8 @@
     "browser-stdout": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
-      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw=="
+      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
+      "dev": true
     },
     "browserify-aes": {
       "version": "1.2.0",
@@ -3194,7 +3204,8 @@
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       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "dev": true
     },
     "caniuse-lite": {
       "version": "1.0.30001066",
@@ -3268,6 +3279,7 @@
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       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.3.1.tgz",
       "integrity": "sha512-4QYCEWOcK3OJrxwvyyAOxFuhpvOVCYkr33LPfFNBjAD/w3sEzWsp2BUOkI4l9bHvWioAd0rc6NlHUOEaWkTeqg==",
+      "dev": true,
       "requires": {
         "anymatch": "~3.1.1",
         "braces": "~3.0.2",
@@ -3282,7 +3294,8 @@
         "normalize-path": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
-          "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA=="
+          "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+          "dev": true
         }
       }
     },
@@ -3482,7 +3495,8 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
     },
     "concat-stream": {
       "version": "1.6.2",
@@ -3805,7 +3819,8 @@
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       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
-      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+      "dev": true
     },
     "decode-uri-component": {
       "version": "0.2.0",
@@ -4007,6 +4022,7 @@
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       "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
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+      "dev": true,
       "requires": {
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@@ -4092,7 +4108,8 @@
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+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "dev": true
     },
     "diffie-hellman": {
       "version": "5.0.3",
@@ -4287,6 +4304,7 @@
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       "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.17.5.tgz",
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+      "dev": true,
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@@ -4304,12 +4322,14 @@
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       "resolved": "https://registry.npmjs.org/es-array-method-boxes-properly/-/es-array-method-boxes-properly-1.0.0.tgz",
-      "integrity": "sha512-wd6JXUmyHmt8T5a2xreUwKcGPq6f1f+WwIJkijUqiGcJz1qqnZgP6XIK+QyIWU5lT7imeNxUll48bziG+TSYcA=="
+      "integrity": "sha512-wd6JXUmyHmt8T5a2xreUwKcGPq6f1f+WwIJkijUqiGcJz1qqnZgP6XIK+QyIWU5lT7imeNxUll48bziG+TSYcA==",
+      "dev": true
     },
     "es-get-iterator": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/es-get-iterator/-/es-get-iterator-1.1.0.tgz",
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+      "dev": true,
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@@ -4323,7 +4343,8 @@
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+          "integrity": "sha512-xHjhDr3cNBK0BzdUJSPXZntQUx/mwMS5Rw4A7lPJ90XGAO6ISP/ePDNuo0vhqOZU+UD5JoodwCAAoZQd3FeAKw==",
+          "dev": true
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@@ -4331,6 +4352,7 @@
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+      "dev": true,
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@@ -4386,7 +4408,8 @@
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-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
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@@ -4816,7 +4839,8 @@
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+      "dev": true
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@@ -5775,6 +5799,7 @@
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@@ -5819,6 +5844,7 @@
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+      "dev": true,
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@@ -5828,6 +5854,7 @@
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+      "dev": true,
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@@ -6028,18 +6055,21 @@
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-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
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+      "dev": true,
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+      "dev": true
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     "functional-red-black-tree": {
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@@ -6056,7 +6086,8 @@
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+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "dev": true
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@@ -6115,6 +6146,7 @@
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@@ -6128,6 +6160,7 @@
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@@ -6265,7 +6298,8 @@
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+      "dev": true
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@@ -6332,7 +6368,8 @@
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+      "dev": true
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     "has-to-string-tag-x": {
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@@ -6412,7 +6449,8 @@
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+      "dev": true
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@@ -6605,6 +6643,7 @@
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+          "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
+          "dev": true
         },
         "emoji-regex": {
           "version": "7.0.3",
           "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
-          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+          "dev": true
         },
         "find-up": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
           "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
           "requires": {
             "locate-path": "^3.0.0"
           }
@@ -12403,12 +12528,14 @@
         "is-fullwidth-code-point": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
-          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
         },
         "locate-path": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
           "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
           "requires": {
             "p-locate": "^3.0.0",
             "path-exists": "^3.0.0"
@@ -12418,6 +12545,7 @@
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
           "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
           "requires": {
             "p-limit": "^2.0.0"
           }
@@ -12425,12 +12553,14 @@
         "path-exists": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
         },
         "string-width": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
           "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
           "requires": {
             "emoji-regex": "^7.0.1",
             "is-fullwidth-code-point": "^2.0.0",
@@ -12441,6 +12571,7 @@
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
           "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
           "requires": {
             "ansi-regex": "^4.1.0"
           }
@@ -12449,6 +12580,7 @@
           "version": "5.1.0",
           "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
           "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "dev": true,
           "requires": {
             "ansi-styles": "^3.2.0",
             "string-width": "^3.0.0",
@@ -12459,6 +12591,7 @@
           "version": "13.3.2",
           "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
           "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
+          "dev": true,
           "requires": {
             "cliui": "^5.0.0",
             "find-up": "^3.0.0",
@@ -12476,6 +12609,7 @@
           "version": "13.1.2",
           "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
           "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+          "dev": true,
           "requires": {
             "camelcase": "^5.0.0",
             "decamelize": "^1.2.0"
diff --git a/package.json b/package.json
index 5492db8e..aa932f1d 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "release": "release-it --non-interactive",
     "changelog": "auto-changelog -p",
     "prepublishOnly": "npm run build",
-    "test": "mocha --config=test/unit/.mocharc.json --node-env=test --exit",
+    "test:unit": "mocha --config=test/unit/.mocharc.json --node-env=test --exit test/unit/**/*.ts",
     "test:integration": "mocha --opts test/integration/mocha.opts"
   },
   "repository": {
@@ -43,8 +43,7 @@
     "uuid": "^8.0.0",
     "web3": "^1.2.9",
     "web3-eth-contract": "^1.2.9",
-    "whatwg-url": "^8.0.0",
-    "mocha": "^8.0.1"
+    "whatwg-url": "^8.0.0"
   },
   "devDependencies": {
     "@oceanprotocol/contracts": "^0.2.2",
@@ -73,8 +72,9 @@
     "ora": "^4.0.2",
     "prettier": "^2.0.5",
     "sinon": "^9.0.1",
-    "source-map-support": "^0.5.16",
+    "source-map-support": "^0.5.19",
     "ts-node": "^8.10.2",
+    "ts-node-register": "^1.0.0",
     "typedoc": "^0.17.1",
     "typescript": "^3.9.5",
     "yargs": "^15.3.1"
diff --git a/test/integration/.mocharc.json b/test/integration/.mocharc.json
new file mode 100644
index 00000000..8b21c20d
--- /dev/null
+++ b/test/integration/.mocharc.json
@@ -0,0 +1,10 @@
+{
+  "require": [
+    "ts-node/register",
+    "source-map-support/register",
+    "mock-local-storage"
+  ],
+  "full-trace": true,
+  "exit": true,
+  "timeout": "300000"
+}
diff --git a/test/integration/mocha.opts b/test/integration/mocha.opts
deleted file mode 100644
index 6f57adae..00000000
--- a/test/integration/mocha.opts
+++ /dev/null
@@ -1,7 +0,0 @@
---require ts-node/register
---require source-map-support/register
---require mock-local-storage
---full-trace
---exit
---timeout 300000
-test/integration/**/*.test.ts
\ No newline at end of file
diff --git a/test/unit/.mocharc.json b/test/unit/.mocharc.json
index fa9580f6..4fb154e9 100644
--- a/test/unit/.mocharc.json
+++ b/test/unit/.mocharc.json
@@ -1,12 +1,11 @@
-{ 
-    "require": [
-        "ts-node/register",
-        "source-map-support/register",
-        "mock-local-storage"
-    ],
-    "full-trace": true,
-    "bail": true,
-    "exit": true,
-    "timeout": 20000,
-    "file": ["./test/unit/tsconfig.json", "./test/unit/DataTokens.test.ts"]
+{
+  "require": [
+    "ts-node/register",
+    "source-map-support/register",
+    "mock-local-storage"
+  ],
+  "full-trace": true,
+  "bail": true,
+  "exit": true,
+  "timeout": "20000"
 }
diff --git a/test/unit/Datatokens.test.ts b/test/unit/Datatokens.test.ts
index 8019eb72..232ce751 100644
--- a/test/unit/Datatokens.test.ts
+++ b/test/unit/Datatokens.test.ts
@@ -1,8 +1,9 @@
 import { assert } from 'chai'
 import { TestContractHandler } from '../TestContractHandler'
 import { DataTokens } from '../../src/datatokens/Datatokens'
-import Web3 from 'web3'
 
+
+const Web3 = require('web3')
 const factory = require('@oceanprotocol/contracts/artifacts/development/Factory.json')
 const datatokensTemplate = require('@oceanprotocol/contracts/artifacts/development/DataTokenTemplate.json')