feat: brun lang - ast updates, tests for headers and script tags

packages/bruno-lang/v2/src/index.js

@@ -1,4 +1,5 @@
 const ohm = require("ohm-js");
+const _ = require('lodash');
 
 const grammar = ohm.grammar(`Bru {
   BruFile = (script | test | headers)*
@@ -6,14 +7,14 @@ const grammar = ohm.grammar(`Bru {
   st = " " | "\\t"
   tagend = nl "}"
   
-  headers = "headers" st* "{" nl* pairlist tagend
+  headers = "headers" st* "{" pairlist? tagend
   
-  pairlist = pair (~tagend nl pair)* (~tagend space)*
+  pairlist = nl* pair (~tagend nl pair)* (~tagend space)*
   pair = st* key st* ":" st* val st*
-  key = alnum*
+  key = ~tagend alnum*
-  val = letter*
+  val = ~tagend letter*
 
-  script = "script" st* "{" codeblock tagend
+  script = "script" st* "{" nl* codeblock tagend
   test = "test" st* "{" codeblock tagend
 
   codeblock = codeline (~tagend nl codeline)*
@@ -21,11 +22,36 @@ const grammar = ohm.grammar(`Bru {
   codechar = ~nl any
 }`);
 
+const mapPairListToKeyValPairs = (pairList = [], enabled = true) => {
+  if(!pairList.length) {
+    return [];
+  }
+  return _.map(pairList[0], pair => {
+    const key = _.keys(pair)[0];
+    return {
+      name: key,
+      value: pair[key],
+      enabled: enabled
+    };
+  });
+};
+
 const sem = grammar.createSemantics().addAttribute('ast', {
-  headers(_1, _2, _3, _4, pairlist, _5) {
+  BruFile(tags) {
-    return pairlist.ast;
+    if(!tags || !tags.ast || !tags.ast.length) {
+      return {};
+    }
+
+    return _.reduce(tags.ast, (result, item) => {
+      return _.assign(result, item);
+    }, {});
   },
-  pairlist(pair, _1, rest, _2) {
+  headers(_1, _2, _3, pairlist, _4) {
+    return {
+      headers: mapPairListToKeyValPairs(pairlist.ast)
+    };
+  },
+  pairlist(_1, pair, _2, rest, _3) {
     return [pair.ast, ...rest.ast];
   },
   pair(_1, key, _2, _3, _4, val, _5) {
@@ -39,11 +65,15 @@ const sem = grammar.createSemantics().addAttribute('ast', {
   val(chars) {
     return chars.sourceString;
   },
-  script(_1, _2, _3, codeblock, _4) {
+  script(_1, _2, _3, _4, codeblock, _5) {
-    return codeblock.sourceString;
+    return {
+      script: codeblock.sourceString
+    };
   },
   test(_1, _2, _3, codeblock, _4) {
-    return codeblock.sourceString;
+    return {
+      test: codeblock.sourceString
+    };;
   },
   codeblock(line, _1, rest) {
     return [line.ast, ...rest.ast].join('\n');
@@ -74,8 +104,6 @@ const parser = (input) => {
   if(match.succeeded()) {
     return sem(match).ast;
   } else {
-    console.log('match.message=========');
-    console.log(match.message);
     throw new Error(match.message);
   }
 }

packages/bruno-lang/v2/tests/headers.spec.js

@@ -0,0 +1,100 @@
+const bruToJsonV2 = require("../src/index");
+
+const assertSingleHeader = (input) => {
+  const output = bruToJsonV2(input);
+
+  const expected = {
+    "headers": [{
+      "name": "hello",
+      "value": "world",
+      "enabled": true
+    }]
+  };
+  expect(output).toEqual(expected);
+};
+
+describe("headers parser", () => {
+  it("should parse empty header", () => {
+    const input = `
+headers {
+}`;
+
+    const output = bruToJsonV2(input);
+    const expected = {
+      "headers": []
+    };
+    expect(output).toEqual(expected);
+  });
+
+  it("should parse single header", () => {
+    const input = `
+headers {
+  hello: world
+}`;
+
+    assertSingleHeader(input);
+  });
+
+  it("should parse single header with spaces", () => {
+    const input = `
+headers {
+      hello: world   
+}`;
+
+    assertSingleHeader(input);
+  });
+
+  it("should parse single header with spaces and newlines", () => {
+    const input = `
+headers {
+
+      hello: world   
+  
+
+}`;
+
+    assertSingleHeader(input);
+  });
+
+  it("should parse multi headers", () => {
+    const input = `
+headers {
+  hello: world
+  foo: bar
+}`;
+
+    const output = bruToJsonV2(input);
+    const expected = {
+      "headers": [{
+        "name": "hello",
+        "value": "world",
+        "enabled": true
+      }, {
+        "name": "foo",
+        "value": "bar",
+        "enabled": true
+      }]
+    };
+    expect(output).toEqual(expected);
+  });
+
+  it("should throw error on invalid header", () => {
+    const input = `
+headers {
+  hello: world
+  foo
+}`;
+
+    expect(() => bruToJsonV2(input)).toThrow();
+  });
+
+  it("should throw error on invalid header", () => {
+    const input = `
+headers {
+  hello: world
+  foo: bar}`;
+
+    expect(() => bruToJsonV2(input)).toThrow();
+  });
+});
+

packages/bruno-lang/v2/tests/index.spec.js

@@ -1,19 +1,13 @@
 const parser = require("../src/index");
 
 describe("parser", () => {
-  it("should parse headers", () => {
+  it("should parse the bru file", () => {
     const input = `
 headers {
   hello: world
   foo: bar
-}`;
+}
 
-    const output = parser(input);
-    console.log(output);
-  });
-
-  it("should parse script body", () => {
-    const input = `
 script {
   function onResponse(request, response) {
     expect(response.status).to.equal(200);
@@ -22,6 +16,21 @@ script {
 `;
 
     const output = parser(input);
-    console.log(output);
+    const expected = {
+      "headers": [
+        {
+          "name": "hello",
+          "value": "world",
+          "enabled": true
+        },
+        {
+          "name": "foo",
+          "value": "bar",
+          "enabled": true
+        }
+      ],
+      "script": "  function onResponse(request, response) {\n    expect(response.status).to.equal(200);\n  }"
+    }
+    expect(output).toEqual(expected);
   });
 });

packages/bruno-lang/v2/tests/script.spec.js

@@ -0,0 +1,17 @@
+const parser = require("../src/index");
+
+describe("script parser", () => {
+  it("should parse script body", () => {
+    const input = `
+script {
+  function onResponse(request, response) {
+    expect(response.status).to.equal(200);
+  }
+}
+`;
+
+    const output = parser(input);
+    const expected = "  function onResponse(request, response) {\n    expect(response.status).to.equal(200);\n  }";
+    expect(output.script).toEqual(expected);
+  });
+});