DON'T MERGE: adding tests (#26)

Issues covered:
- vala-language-server#57
- vala-language-server#106
- vala-language-server#138
- vala-language-server#153

Unit tests:
- diagnostics

.gitignore

@@ -1,2 +1,3 @@
 build/
 *.o
+subprojects/lstf

meson.build

@@ -80,5 +80,5 @@ subdir('data')
 subdir('src')
 
 if get_option('tests')
-  subdir('test')
+  subdir('tests')
 endif

subprojects/lstf.wrap

@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/Prince781/lstf
+revision = head
+
+[provide]
+program_names = lstf

tests/106-autocompletion-in-string-literals.lstf

@@ -0,0 +1,25 @@
+// issue: vala-language-server#106
+server_path = option('server-path');
+
+let f = file(`
+void main() {
+    print ("this is a string");
+}
+`);
+
+project_files = [ f ];
+
+
+
+await change(f, {
+    range: {
+        start: { line: 2, character: 29 },
+        end: { line: 2, character: 29 }
+    },
+    text: '.'
+});
+
+assert {
+    isIncomplete: false,
+    items: []
+} <=> await completion(f, 2, 29);

tests/138-suggest-overridable-symbols.lstf

@@ -0,0 +1,35 @@
+// issue: vala-language-server#138
+server_path = options('server-path');
+
+let f = file(`
+interface Iface {
+    public abstract void must_override();
+}
+class Sas : Iface, Object {
+
+}
+`);
+
+project_files = [ f ];
+
+
+
+await change(f, {
+    range: {
+        start: { line: 7, character: 5 },
+        end: { line: 7, character: 5 }
+    },
+    text: '\n    p'
+});
+
+assert {
+    isIncomplete: false,
+    completions: [
+        {
+            label: 'public void must_override()',
+            kind: CompletionItemKind.Method,
+            insertText: 'public void must_override()$0',
+            insertTextFormat: InsertTextFormat.Snippet
+        }
+    ]
+} <=> await completion(f, 8, 6);

tests/153-signaturehelp-shared-prefix.lstf

@@ -0,0 +1,32 @@
+// issue: vala-language-server#153
+server_path = option('server-path');
+
+let f = file(`
+void foo (int arg1, int arg2) {
+}
+void main() {
+    foo
+}
+`);
+
+project_files = [ f ];
+
+
+
+await change(f, {
+    range: {
+        start: { line: 4, character: 7 },
+        end: { line: 4, character: 7 }
+    },
+    text: ' ('
+});
+
+assert {
+    signatures: [
+        {
+            label: 'void foo(int arg1, int arg2)',
+            parameters: [ { label: 'int arg1' } ]
+        }
+    ],
+    activeParameter: 0
+} <=> await signatureHelp(f, 4, 9);

tests/57-suggest-overridable-symbols.lstf

@@ -0,0 +1,49 @@
+// issue: vala-language-server#57
+server_path = option('server-path');
+
+let f = file(`
+interface Iface {
+    public abstract void must_override1();
+    public abstract void must_override2(int arg1);
+    public abstract void must_override3(int arg1, bool arg2);
+}
+class Sas : Iface, Object {
+
+}
+`);
+
+project_files = [ f ];
+
+
+
+await change(f, {
+    range: {
+        start: { line: 7, character: 5 },
+        end: { line: 7, character: 5 }
+    },
+    text: 'p'
+});
+
+assert {
+    isIncomplete: false,
+    completions: [
+        {
+            label: 'public void must_override1()',
+            kind: CompletionItemKind.Method,
+            insertText: 'public void must_override1()$0',
+            insertTextFormat: InsertTextFormat.Snippet,
+        },
+        {
+            label: 'public void must_override2(int arg1)',
+            kind: CompletionItemKind.Method,
+            insertText: 'public void must_override2(int ${1:arg1})$0',
+            insertTextFormat: InsertTextFormat.Snippet,
+        },
+        {
+            label: 'public void must_override3(int arg1, bool arg2)',
+            kind: CompletionItemKind.Method,
+            insertText: 'public void must_override3(int ${1:arg1}, bool ${2:arg2})$0',
+            insertTextFormat: InsertTextFormat.Snippet
+        }
+    ]
+} <=> await completion(f, 7, 5);

tests/diagnostics.lstf

@@ -0,0 +1,17 @@
+server_path = option('server-path');
+let f = file(`void main(string args[]) {}`);
+project_files = [ f ];
+
+assert {
+    diagnostics: [
+        ...,
+        {
+            range: {
+                start: { line: 3, character: 5 },
+                end: { line: 3, character: 16 }
+            },
+            severity: DiagnosticSeverity.Error
+        },
+        ...
+    ]
+} <=> await diagnostics(f);