Add fuzz testing to qcode

corpus/1

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+query {
+  products(
+    # returns only 30 items
+    limit: 30,
+
+    # starts from item 10, commented out for now
+    # offset: 10,
+
+    # orders the response items by highest price
+    order_by: { price: desc },
+
+    # no duplicate prices returned
+    distinct: [ price ]
+    
+    # only items with an id >= 30 and < 30 are returned
+    where: { id: { and: { greater_or_equals: 20, lt: 28 } } }) {
+    id
+    name
+    price
+  }
+}

corpus/2

@@ -0,0 +1,14 @@
+query {
+  products(
+    where: { 
+      or: { 
+        not: { id: { is_null: true } }, 
+        price: { gt: 10 },
+        price: { lt: 20 } 
+      } }
+    ) {
+    id
+    name
+    price
+  }
+}

corpus/3

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+query {
+  products(
+    where: { 
+      and: { 
+        not: { id: { is_null: true } }, 
+        price: { gt: 10 } 
+      }}) {
+    id
+    name
+    price
+  }
+}

corpus/4

@@ -0,0 +1,12 @@
+query {
+  products(
+    where: { 
+      and: [ 
+        { not: { id: { is_null: true } } }, 
+        { price: { gt: 10 } }, 
+      ] } ) {
+    id
+    name
+    price
+  }
+}

corpus/5

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+query {
+  product(id: 15) {
+    id
+    name
+  }
+}

corpus/6

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+query {
+  products(
+    # returns only 30 items
+    limit: 30,
+
+    # starts from item 10, commented out for now
+    # offset: 10,
+
+    # orders the response items by highest price
+    order_by: { price: desc },
+
+    # no duplicate prices returned
+    distinct: [ price ]
+    
+    # only items with an id >= 30 and < 30 are returned
+    where: { id: { and: { greater_or_equals: 20, lt: 28 } } }) {
+    id
+    name
+    price
+  }
+}

corpus/7

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+query {
+  products(search: "Imperial") {
+    id
+    name
+  }
+}

corpus/8

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+query {
+  products(
+    # returns only 30 items
+    limit: 30,
+
+    # starts from item 10, commented out for now
+    # offset: 10,
+
+    # orders the response items by highest price
+    order_by: { price: desc },
+
+    # only items with an id >= 30 and < 30 are returned
+    where: { id: { and: { greater_or_equals: 20, lt: 28 } } }) {
+    id
+    name
+    price
+    user {
+      full_name
+      picture : avatar
+    }
+  }
+}

fuzz.yaml

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+base: ubuntu:16.04
+targets:
+  - name: tutorial
+    language: go
+    version: "1.12"
+    corpus: ./corpus
+    #memory_limit: 1000 # in megabytes
+    #timeout: 500 # in milliseconds
+    harness:
+      function: FuzzerEntrypoint
+      # package defines where to import FuzzerEntrypoint from
+      package: github.com/dosco/super-graph/qcode
+      # the repository will be cloned to
+      # $GOPATH/src/github.com/fuzzbuzz/tutorial
+      checkout: github.com/dosco/super-graph/

qcode/fuzz.go

@@ -0,0 +1,14 @@
+package qcode
+
+// FuzzerEntrypoint for Fuzzbuzz
+func FuzzerEntrypoint(data []byte) int {
+	testData := string(data)
+
+	qcompile, _ := NewCompiler(Config{})
+	_, err := qcompile.CompileQuery(testData)
+	if err != nil {
+		return -1
+	}
+
+	return 0
+}